Biological control (from the ecological viewpoint) is, “the action of parasites, predators, or pathogens in maintaining another organism's population density at a lower average than would occur in their absence.”
Biological control (from the ecological viewpoint) is, “the action of parasites, predators, or pathogens in maintaining another organism's population density at a lower average than would occur in their absence.”
Orthoptera is an order of insects that comprises the grasshoppers, locusts and crickets, including closely related insects such as the katydids and wetas. The order is subdivided into two suborders: Caelifera – grasshoppers, locusts and close relatives; and Ensifera – crickets and close relatives.
order hemiptera is divided in two sub order i.e. Homoptera and Heteroptera. major families of order hemiptera are pentatomodae, coreidae, cimicidae, pyrrhocoreidae, lygaeidae, cicadilidae, delphacidae, aphidae, coccidae, laphopidae, aleurodidae, pseudococcidae, jassidae etc.
Orthoptera is an order of insects that comprises the grasshoppers, locusts and crickets, including closely related insects such as the katydids and wetas. The order is subdivided into two suborders: Caelifera – grasshoppers, locusts and close relatives; and Ensifera – crickets and close relatives.
order hemiptera is divided in two sub order i.e. Homoptera and Heteroptera. major families of order hemiptera are pentatomodae, coreidae, cimicidae, pyrrhocoreidae, lygaeidae, cicadilidae, delphacidae, aphidae, coccidae, laphopidae, aleurodidae, pseudococcidae, jassidae etc.
cotton crop needs highest pesticide application for pest management, So we came with ipm practices for reducing insecticide spray, to manage the resistance development and secondary outbreak of sucking pest
Principles of integrated plant disease management (1+1)subhashB10
This is small topic named:MODE OF ENTRY AND ESTABLISHMENT OF FUNGUS INTO SEEDS. which is taken from the course PRINCIPLES OF INTEGRATED PLANT DISEASE MANAGEMENT.
In this PPT slides you will come to know about the different kinds of pest which is infesting in WHEAT plant. And also you will come to know about their management practices and also you will have an knowledge about some common chemicals which is being uses to eradicate the pests/diseases infesting in wheat plant.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
2. INTRODUCTION
Oilseed crops are grown for the oil contained in seeds
Contain moderate amount of proteins and fibers.
Oil content of oilseeds range from 1-2% in wheat 20%
in soybeans to over 40%in sunflower and rapeseed.
Major world sources of edible oils are soybeans,
sunflowers, rapeseed, cotton and groundnuts.
Oilseed crop production is enhanced 82% over last 30
years with increasing world population.
3. Importance of oilseeds
Essential part of agriculture and economy.
Energy source for dairy cattle.
Source of fats and edible oils.
Edible vegetable oils are used as salad or cooking oil
Solidified form of oils replaced animal products as
butter, lard to meet worlds population needs.
4. Contribute to renewable energy production
Crambe oil contains erucic acid, giving it economic
importance for use in the electricity sector.
Crambe oil can be used in insulating fluids and in the
manufacture of chemical products.
5. Cont…
Industrial uses:
Flaxseed oil (unsaturated fatty acid) used in paints,
varnishes
Vegetable oils used in printing inks, erasers, core oils or
coating, greases, plastics , cooking etc.
Residue remaining are major source of nutrients for
farm animals.
Oilseed meals from protein rich soybeans, peanuts,
rapeseed provide nutritionally balanced feeds to cereals.
7. Pests of oilseeds
Pest damage many oilseeds and loss in farms and
storages
Pests can be classified according to different factors as
taxonomic grouping,
feeding habitat,
distribution.
Some pests are specific to particular crop and others
are general.
8. Types according Feeding habitat
Pests with chewing mouthparts:
eat parts of crops as flowers, foliage, stem, roots or buds.
Eat portion of leaves; leave holes in leaves by fleas and
beetles
cause bud abscission, reduce pods yield, delayed
flowering (weevils) and bores.
9. Cont…
Pests with sucking mouthparts: pests include
aphids, bugs, thrips, whiteflies, mites and jassids.
Cause plant to discolor, twist and curl.
Spider and mites cause yellow speckles
Plant bugs cause darkened spots, reduce photosynthetic
capacity of plant
Aphids, whiteflies cause coatings of black sooty mold
10. Control of pests/ IPM
Integrated pest management (IPM)
Pest management is mandatory which is done by
following methods
Biological control
Cultural control/Physical control
Chemical control
Crop rotation
11. Biological control
Using other organisms as
predators, parasites or
herbivore
Active human management
is important
E.g: mosquitoes controlled
by bacillus thuringensis ssp
12. Cultural control
Also known as mechanical pest control/ tillage.
Use hands on technique, simple equipments
(dibbles, hoes, shovels, rotary tillers, subsoilers)
Provide a protective barrier b/w insects and plants.
The tillage kills the weeds via 2 mechanisms:
uprooting them, burying their leaves (cutting off
their photosynthesis)
13.
14. Chemical control
Using pesticides
Chemicals that kill pests or inhibit their development
Types depend on pests form
Weedicides
Fungicides
Herbicides
Rodenticides
Avicides
Bactericides
insecticides
16. Crop rotation
The growing of different crops in series on a piece of land
to avoid exhausting the soil and to control weeds, pests,
and diseases.
The changing of crops in a sequence decreases the
population level of pests by
interrupting pest life cycles
interrupting pest habitat.
By Damaging host plants
17.
18. • Groundnut is most important cash crop .
It is rich source of protein and oil.
19. MAIN PRODUCTION AREAS
The main production areas are located in the western
and northwestern Free State, North-West, Northern
Cape, Limpopo and Mpumalanga provinces.
China grows more peanut than anywhere else in the
world
20. Insect pests of groundnut
There are many insects that cause the economy of
groundnut crops
21. Balclutha hortensis
Identification: B. hortensis adults are small and have a
well developed appendix on the tegmen.
hey suck sap from central surface of leaves; inject
toxins resulting in whitening of veins and chlorotic
patches especially at the tips of leaflets.
22.
23. control
Applying safe insecticides such as Dimethoate 30 EC,
or Monochrotophos 36SL can be effective against
jassid.
24. Caliothrips indicus
In the case of C. indicus both adults and nymphs are
dark colored with fringed.
symptoms of damage is different as tender leaves show
yellowish green patches on the upper surface; brown
necrotic areas and silvery sheen on the lower surface.
Severe infestations cause stunted plants.
25. control
Spraying Monochrotophos 36 WSC, Dimethoate 30
EC, Methyldemeton 25 EC, or Monocrotophos 320 ml
mixed with neem oil, 1 lit and 1 kg soap powder mixed
in 200 lit of water twice at 10 days interval can be
effective against thrips infestations.
26. Aphis craccivora
A. craccivora is known as groundnut aphid or cowpea
aphid
They feed on the growing tips, tender foliage, flowers
and growing pegs causing stunting and distortion of
the foliage and stems.
27.
28. control
Biological control agents such as flower bugs
(Anthocorids), and etc. would be effective in
controlling aphid.
29. Odontotermes obesus
Termites are social insects, live in territorial, in distinct
castes, workers, kings and queen.
termites are one of the major soil pests of
groundnutTermites.
They penetrate, hollow out the tap root and feed on
the roots of the groundnut. The attack continues with
boring holes into pods and damages the seed
30. CONTROL
Termites can be controlled mechanically by avoiding
physical loss of the crop during harvesting,
destruction of debris, nests and queen. Applying
insecticides like Chlorpyriphos 20 EC, Lindane 1.3% or
Chlorpyriphos dust in soil before sowing may reduce
termite damage
31. Caryedon serratus
It is the only species that can penetrate intact pods to
infest the kernels.
Infestation of the harvested groundnuts can occur
while the crop is being dried in the field, stored near
infested stocks or crop residues.
35. Sunflower Moth
Banded sunflower moths are a threat in all sunflower
growing regions.
larvae are a pink-red color (and sometimes green).
Most of their eggs are deposited on the outer whorl of
seeds in the sunflower head and more may be laid on
its underside.
36.
37. Cont….
Feeding larvae can prevent proper plant development
and significantly reduce seed count, reducing yield
and quality.
symptoms
Inadequate pollination due to larvae feeding on florets
and pollen
Silk-like webbing on sunflower heads are a sign of
feeding larvae
Empty seeds from feeding larvae
38. Monitoring and Management
Late-planted crops are usually less susceptible to
banded sunflower moth damage
Sample for banded sunflower moth in the early
morning or late evening, when they are most active
Apply insecticides like Besiege®, Karate with Zeon
Technology® or Warrior II with Zeon Technology®
39. Cutworms
There are many different cutworm species that feed on
sunflower. For most species, eggs laid the previous
summer hatch each May or June. Cutworms can
damage young plants above or below the soil surface
by cutting through the stem and feeding on foliage.
40.
41. Cont….
Symptoms
Small, transparent spots on leaves from young larvae
feeding
Wilted, severed or dying seedlings resulting from older
larvae feeding
Notches in leaves or cotyledons can appear when
planting on already-infested fields
42. Monitoring and Management
Look for cut plants at least twice each week during
early emergence.
Dig near damaged plants during the daytime to scout
for cutworms.
Tillage can reduce infestations
Apply Besiegeor Warrior II with Zeon
Technology insecticide at emergence or just before to
control cutworm feeding above ground
43. Pests of soyabean crop
Description:
Soybean, Glycine max, is an herbaceous annual plant
in the family Fabaceae grown for its edible seeds.
The soybean plant is usually an erect bush with woody
stems and alternately arranged leaves. The leaves
possess three individual leaflets which are oval or
lance-like in shape
44.
45. The soybean plant produces small white or purple
flowers and curved seed pods
46. Common Pests and Diseases Category : Bacterial
Bacterial blight Pseudomonas syringaea
Soybean infected with bacterial blight
Symptoms
Water-soaked spots on leaves which enlarge and
become necrotic;
spots may be surrounded by a zone of yellow
discoloration;
leaves that die remain attached to plant; circular,
sunken, red-brown lesion may be present on pods;
47.
48. Management
Plant only certified seed;
plant resistant varieties;
treat seeds with an appropriate antibiotic prior to
planting to kill off bacteria;
49. Bacterial pustule Xanthomonas campestris
Bacterial pustule (pimples)symptoms on soybean
Symptoms
Tiny pale green spots with raised centers on both
upper and lower leaf surfaces which develop raised
pustules in lesion center;
pustules usually form in lesions on lower leaf surface;
small red-brown spots may develop on pods of some
varieties
50.
51. Managment:
Plant varieties of soybean that are resistant to bacterial
pustule;
spray plants with an appropriate fungicide before
appearance of symptoms
52. Category : Fungal
Rhizoctonia stem rot Rhizoctonia solani
Symptoms
Damping-off (pre- or post-emergence death) of
seedlings caused by red-brown lesions which girdle the
stem;
lesions or cankers may be present on the stem of older
plants and cause the death of the plant mid-season
53. Management
Treat seeds with an appropriate fungicide prior to
planting;
plant less susceptible varieties of soybean; plant only
in well-draining soils
54. Rust Phakopsora pachyrhizi
Symptoms
Gray or red-brown water-soaked spots on leaves ,
lesions may also be present on stems, petioles and
pods;
plants drop leaves and mature prematurely
55.
56. Management:
Plant soybean varieties that are resistant to rust;
applications of appropriate foliar fungicides can help
to control the disease
57. Insects Pests
Armyworms (Beet armyworm, Western striped
armyworm) Spodoptera exigua
Spodoptera praefica
Beet armyworm larvae feeding on soybean leaves
Symptoms
Singular, or closely grouped circular to irregularly shaped holes
in foliage;
heavy feeding by young larvae leads to skeletonized leaves;
shallow, dry wounds on fruit;
58.
59. Management
Organic methods of controlling armyworms include
biological control by natural enemies which parasitize
the larvae.
60. varivestis
Symptoms
Irregular patches of feeding damage on underside of
leaves which causes the top surface of the leaf to dry
out, giving the leaves a lacy appearance;
insect will also damage flowers and small pods; pods
may be damaged so badly that they drop from the
plants.