The document discusses various types of interactions between microorganisms including mutualism, commensalism, parasitism, predation, competition, and synergism. Specific examples are provided for each type of interaction such as lichens exhibiting mutualism between fungi and cyanobacteria. Both beneficial and harmful relationships between microbes and other organisms like plants, animals, and humans are explored.
Microbial interactions are ubiquitous, diverse, critically important in the function of any biological community.
The most common cooperative interactions seen in microbial systems are mutually beneficial. The interactions between the two populations are classified according to whether both populations and one of them benefit from the associations, or one or both populations are negatively affected.
he rhizosphere is the narrow region of soil or substrate that is directly influenced by root secretions and associated soil microorganisms known as the root microbiome.
The phyllosphere is a term used in microbiology to refer to the total above-ground portions of plants as habitat for microorganisms.
Microbial interactions are ubiquitous, diverse, critically important in the function of any biological community.
The most common cooperative interactions seen in microbial systems are mutually beneficial. The interactions between the two populations are classified according to whether both populations and one of them benefit from the associations, or one or both populations are negatively affected.
he rhizosphere is the narrow region of soil or substrate that is directly influenced by root secretions and associated soil microorganisms known as the root microbiome.
The phyllosphere is a term used in microbiology to refer to the total above-ground portions of plants as habitat for microorganisms.
Introduction :
Mycorrhizae are mutualistic symbiotic associations formed between the roots of higher plants and fungi.
Fungal roots were discovered by the German botanist A B Frank in the last century (1855) in forest trees such as pine.
In nature approximately 90% of plants are infected with mycorrhizae. 83% Dicots,79% Monocots and 100% Gymnosperms.
Convert insoluble form of phosphorous in soil into soluble form.
Soils give a mechanical support to plants from which they extract nutrients. soil provides shelters for many animal types, from invertebrates such as worms and insects up to mammals like rabbits, moles, foxes and badgers. It also provides habitats colonised by a staggering variety of microorganisms. This module is about the microbial life in soils.
Basic Knowledge about industrial microorganism. why industry choose microorganism rather than chemical. isolation technique of microorganism. source of microorganisms. Process of using microorganism. Disadvantages of using microorganisms in industry. Process of genetic modification of microorganisms. Storage process of microorganism. preservation methods of microorganism. Reculture methods of microorganism.
Mycorrhiza Biofertilizer is also known as VAM (Myco = Fungal + rrhiza = roots) adheres to plants rhizoids leading to development of hyphae. Hyphae boost development and spreading of white root in to soil leading to significant increase in rhizosphere. These hyphae further penetrate and form arbuscules within the root cortical. VAM fungi form a special symbiotic relationship with roots of plant that can enhance growth and survivability of colonized plants. Mycorrhiza Biofertilizer is very useful in organic farming as well as normal commercial farming
Air is not a natural environment for microorganisms. Microorganisms present in air are liberated from various other sources. These various sources include soil, water, plant and animal surfaces and human beings.
Steps involved in fermentation products producing a viable product output.various steps and process were explained in them. A semester syllabus of undergraduate microbiology student in his/her semester -5 in paper -6 . I think this might be helpful to you and have a good response after reading this .thank you.
Introduction :
Mycorrhizae are mutualistic symbiotic associations formed between the roots of higher plants and fungi.
Fungal roots were discovered by the German botanist A B Frank in the last century (1855) in forest trees such as pine.
In nature approximately 90% of plants are infected with mycorrhizae. 83% Dicots,79% Monocots and 100% Gymnosperms.
Convert insoluble form of phosphorous in soil into soluble form.
Soils give a mechanical support to plants from which they extract nutrients. soil provides shelters for many animal types, from invertebrates such as worms and insects up to mammals like rabbits, moles, foxes and badgers. It also provides habitats colonised by a staggering variety of microorganisms. This module is about the microbial life in soils.
Basic Knowledge about industrial microorganism. why industry choose microorganism rather than chemical. isolation technique of microorganism. source of microorganisms. Process of using microorganism. Disadvantages of using microorganisms in industry. Process of genetic modification of microorganisms. Storage process of microorganism. preservation methods of microorganism. Reculture methods of microorganism.
Mycorrhiza Biofertilizer is also known as VAM (Myco = Fungal + rrhiza = roots) adheres to plants rhizoids leading to development of hyphae. Hyphae boost development and spreading of white root in to soil leading to significant increase in rhizosphere. These hyphae further penetrate and form arbuscules within the root cortical. VAM fungi form a special symbiotic relationship with roots of plant that can enhance growth and survivability of colonized plants. Mycorrhiza Biofertilizer is very useful in organic farming as well as normal commercial farming
Air is not a natural environment for microorganisms. Microorganisms present in air are liberated from various other sources. These various sources include soil, water, plant and animal surfaces and human beings.
Steps involved in fermentation products producing a viable product output.various steps and process were explained in them. A semester syllabus of undergraduate microbiology student in his/her semester -5 in paper -6 . I think this might be helpful to you and have a good response after reading this .thank you.
INTERACTIONS :Interaction is relationship between two organisms.
Also called as BIOLOGICAL OR ECOLOGICAL INTERACTIONS.
In a ecosystem, living (biotic) things have to interact with one another as well as with non -living components of their environment.
All the vital process of living such as growth, nutrition & reproduction requires such interactions between individuals in same species or between species.
The interaction between organisms may not be always beneficial to all the interacting counter parts. Based on whether, the interaction is beneficial to both interacting species or harmful to at least one interaction species, the ecological of biological interactions are classified into two categories.
It can BENEFIT an organisms
It can HARM an organisms
It can NO EFFECT an organisms
POSTIVE INTERACTIONS
In positive interactions, the interacting populations help one another.
The positive interaction may be in one way or reciprocal.
The benefit may be in respect of food, shelter, substratum or transportation.
The positive association may be continuous, transitory, obligate or facultative.
The two interacting partners may be in close contact in such a way that the tissues intermixed with each other; or they may live within a specific area of the other; or attached to its surface.
NEGATIVE INTERACTIONS
In negative interactions, one of the interacting populations is benefited and the other is harmed.
In negative interaction one population may eat members of the other population, compete for foods or excrete harmful wasters.
SYMBIOTIC RELATIONSHIP
Such relationship between living organisms when they live in close association of each other is called as SYMBIOTIC RELATIONSHIP
Mutualism, also called as symbiosis, is also a positive type of ecological interaction.
Mutualism is a symbiotic association between two organisms in which both the interacting partners are mutually benefitted.
Mutualism is different from proto-cooperation in the sense that mutualism is obligatory and none of the partners of mutualism can survive individually.
In mutualism, the organisms enter into some sort of physical and physiological exchange
Micro- organisms transform organic matter into plant nutrients that are assimilated by plants. Soil organisms represent a large fraction of global terrestrial .
Microbial interaction and its relationshipJateenSinha
Microbial interaction and its relationship, Fate of Viral infection, Positive Interaction and Negative Interaction, Syntrophism, Protocooperation, Quorum sensing, Biofilm formation, Plastisphere.
Biotic factors also regulate the size of populations more intensely. Finally, the influence of biotic interactions can occur at two different levels. Interspecific effects are direct interactions between species, and the intraspecific effects represent interactions of individuals within a single species.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. The inter- and intra-relationships between various
microorganisms which can include both positive (like
SYMBIOSIS) and negative (like ANTIBIOSIS)
interactions. Examples include virus - bacteria and
bacteria - bacteria.
The consortium may be in intermitent,cyclic or
permanent.
These are ubiquitous, diverse and critically
important in the function of any biological
community.
5. Microorganisms have no effect on
each other.
Observed in natural communities if-
Culture density is low.
Nutrient level is high.
Each culture has distinct requirements.
6. Mutualism
•An obligatory relationship.
•Highly specific.
•They operate as a single organism.
•Both organisms benefit.
•For Eeg.Diatom(Climacodium)
•and cyanobacteria(Epithemia turgida)
•Lichen-Fungi with
Cyanobacteria.
7. Usnea (fruticose)Xanthoparmelia substrigosa (foliose)
Clim
The endosymbionts are visible as
round bodies within the
cytoplasm. endosymbionts are
important in fixing atmospheric
nitrogen for use by the cells.
8. Positive but not obligatery symbiosis
Can be separated from one another.
For eg-Desulfovibrio &
Chromatium,Cellulomonas & Azotobactor.
9. One partner(commensal) benefits.
while other(host) remains unaffected.
– Common among organisms, not obligatory
– Unidirectional
– Usually, unaffected population modifies the
environment in a way that other population
benefits.
For eg-during Nitrification ,oxidation of NH4+
ions get convert into nitrate.
Nitrosomonas convert NH4+ Ions to nitrite and
nitrobacter oxidise nitrite into nitrate.
10. Parasitism
oOne speices is dependent on a
another for nutrition and growth.
oIn it, one organism is benefitted
and other is harmed.
oClosly related to predation.
oCoexistence between host and
parasite.
oFor eg-Viruses are the highly
specialized intracellular
parasites,generally kill the host.
11. cell.Myxococcus xanthus and E.coli.
Microbial parasite may kill the host or can have
stable relationship without killing the
host.(lysogeny provirus is carried on host
chromosome).
Pathogenic parasite may attack and kill the plant or
animal host.
Obligate parasite Treponema
pallidum(syphilis),Rickettsia(Rockey mountain
fever) can’t grow without an appropriate host.
12. Predatory behavior of M. xanthus
The M. xanthus swarm expands from the
initial spot in a tangled motility pattern.
Lysis ...
13.
14. It involves predator species which target other
microbe for material to survive.
Predator attacks and kills its prey.
They can be obligate or facultative.
Members of predatory bacteria are known as
‘Bdellovibrio and like organisms’(BALO).They
can be epibiotic,periplasmic,cytoplasmic.
For eg-
Bdellovibrio-E.coli interaction
(Vampirococcus,Daptobacter both attack
Chromatium.
16. Focuses on exclusion of an organism from
growing on a specific site to prevent the
utilization of limiting nutrients.
Unidirectional process based on the release
of a specific compound by one organism that
has negative effect on another.
Product of one impact another i.e one species
remains uneffected while other is harmed.
For eg- microbial production of antibiotics that
can inhibits or kill another.penicillin by fungi
inhibit a type of cell wall found
18. It arises when different organisms within
population try to acquire same resources.
Both the species are harmed.
Competiton within the species or among
different species can be attributed to
availibility of Nitrogen source,carbon
source,electron donors,electron
accepter,vitamins,light,water.
Competition may result in exclusion of other
species or the establishment of a steady state
where multiple species coexist.
19. Eg- In aquatic environment where
extensive phototrophic activity results in
blooms of single species of diatoms or
cyanobacteria.
Thermophilic springs chemolithotrophic
organisms are selected.
Lactic acid fermentation of food.
Large intestine of animals,a single species
doesn’t dominate but a mixed population
coexist.
20. Two species are required for growth on a specific
electron donor that is not metabolized by either
organism alone or one of the organisms remove end
products of metabolism from other,which enables both
the organisms to grow.
Both the species are benefited.
This relationship was discovered by Meyer Wolin and
colleagues,when fermentation of propionic acid
occurred when there was a coculture.
Synophobacter produces H during fermentation and
accumulation of H makes the reaction
thermodynamically unstable.
Pesence of methanogen,Methanospirillum makes the
oxidation favourable by consuming the H.’
21.
22. Different interactions between
microorganisms and plants have been
identified and the most obvious environment
for such interactions is soil.
Microbe-plant association can be mutulistic(a
highly specialized interaction where there is
considerable specificity found in mutulistic
activities)or it can be
commensilistic(secretions from plants benefit
bacteria and fungi but no apparent benefit to
plant.
23. Beneficial aspects of plant-microbe symbiosis
are,plants provide c-material to support growth of
microbes and microbes promote plant growth by
supplying minerals or N2.
Eg.Azolla(fresh water aquatic fern)lives in
symbiotic association with Anabena azollae ,where
cyanobacteria fixes atmospheric N2and Azolla
provides carbohydrates.cyanobacteria are present
in trichomes and nutrient exchange occurs through
tiny fibres extending from plant to cavity.
24. Mucilage,organic acids(rhizodepozition),dead root cells(nucleic
acid,complex carb.,proteins)released by root tip act as c-source for
microbes.
Microorganisms enhance the cycling of c and N
compounds,consume rhizospheric O and lower the redox potential of
rhizosphere.
Eg.Mycorrhizae-mutulistic relationship between fungus and
plantroot,growth on exterior of the root is the characteristic of
ectomycorrhiza while growth inside the root is attributed to
endomycorrhiza.
Plants with mycorrhiza-
can grow in low nutrient soil.
display greater growth rates.
more disease resistent.
Boletus elegans and larix sp.
Gigaspora margarita and cotton.
Fungus-Root system
25.
26.
27. Enzyme system for N2 fixation is present only in
prokaryotes and nodules are associated with roots
of Leguminous plants,bacteria(rhizobia) are
specific for a legume species.
Assciation is beneficial for both,plant provide c and
energy source to bacteria and bacteria fix N2 and
provide amino acid to plant.
Rhizobium leguminosarum sp.and pea, beans
tropical(root nodules).
Azorhizobium caulinodan and Aquatic tropical
legume(stem nodule).
28.
29. Bacteria and fungi interact with humans and other animals and this
interaction can be symbiotic, commensalistic or parasitic.
Symbiotic relationships are widespread and has evolved new
metabolic capabilities and cellular structures.(symbiogenesis).
Evolutionary benefits in a symbiotic relationship are;-provision of
dietary needs that their hosts lack including essential amino
acids,cofactors,metabolic factors etc.
N storage and recycling.
Large alterations in genome of symbionts and adaptations by host to
favour the symbiosis occur during long association which can be in
form of genome size reduction or increase in AT content in
genome.since endosymbionts protect their hosts from pathogens,this
may have influenced the evolution of sociality in animals to acquire
the endosymbiont through horizontal and vertical transmission.
30.
31. Buchnera aphidicola and Wiglesworthia glossinidia are
examples of primary symbionts showing marked genome
reduction and resultant genome is the commitment to a
symbiotic lifestyle.
Secondary symbionts may have negative or positive
effect on host and are generally facultative and their
genomes indicate that they are adapting themselves to
an obligate mutulism.
33. In vertebrates gut microbial community produce vitamins
needed by host,help digetion and colonization resistence.
Termite(Reticulitermis speratus) gut
community(symbioses within symbiosis) responsible for
cellulose degradation include
bacteria(spirochaetes,TG1,2,3,bacteroidetes,firmicutes)
which provideN-comp. by fixing N2 and nutrients to host
and protists with their bacterial and archeal ecto and
endosymbionts degrade cellulose,provide a.acid and
cofactors to protists.
Ambrosia beetle carries fungus to a new environment
where fungus flourishes beetle uses fungus as food.
34.
35. One fascinating parasitic interaction involves
nematod(Heterorhabditis bacteriophora harboring a bacterial
endosymbiont Photorhabdus luminescens) and parasitize insects
and humans.
The beneficial nematodes can be used to control a broad range of
soil inhabiting insects and above ground insects in their soil
inhabiting stage of life. White grubs, Beetle grubs, Japanese beetle
This nematod arrest their development in a phase called infective
juvinile larval stage at which it is infected by endosymbiont and when
it infects the insect,nematod further development is induced by
insects hemolymph.
Endosymbiont secretes proteases supressing insects immune
system and damage the insect and nematod parasite feeds on
endosymbiont and the insect as well.
37. Comensal(species that benefits from association)
may obtain nutrient,shelter, support,locomotion
from the host species which remains unmodified.
Comensal species may show great structural
adaptation.eg.Titan triggerfish(Balistoides
viridescens) which creates feeding opportunities
for smaller fishes by moving large rocks too big for
them to shift themselves.
Another example is of a vulture which eats the
leftover food from a lion and the lion is not affected
by this while the vulture gets to eat.