Q: Prion diseases affect only:
A: Prion disease has been linked to the human immune systems. It is suggested that the prion protein…
Q: Choose the best answer for following question It causes leaf abscission. a. auxin…
A: The abscission process takes place as three events- resorption, protective layer formation and…
Q: What are the signs of pathogens in plants? Define and give examples.
A: Pathogens can be defined as disease-causing organisms. In plants, various types of organisms like…
Q: Show a picture or draw Of Rice plant with the pest repellent property of Basil leaves (3d Model)
A: The Plant Kingdom is extremely valuable to humanity as a resource. Humans would be unable to exist…
Q: Explain the mechanism that allows assimilates and viruses to travel through phloem sieve tubes to…
A: Determine: The process that allows assimilates to travel through phloem sieve tubes to other areas…
Q: 4 types of plant defenses are shown (a, b, c, d) in the figure below. Explain two of the depicted…
A: Introduction Plants have a defence system that keeps off infections and predators in the form of…
Q: Plants have systemic defense mechanisms (i.e., those that are not normally active but can be induced…
A: The above mechanism of plant defence is of:-Chemical defence because chemicals are normally present…
Q: Which of the following statements best describes what is depicted in the above image? The leaf in…
A: Q. The correct option is B i.e, The leaf in the image an example of a plant defence known as…
Q: Describe How prions is responsible for disease like BSE ( mad cow disease)
A: Bovine spongiform encephalopathy or BSE is a fatal disease that cause neurodegeneration in cows.…
Q: Define the following terms: (a) papilla (b) abscission layer. How are each of thse structures…
A: Papilla These are complex structure that are formed between the plasma membrane and the inside of…
Q: How do plant react to certain change like irritation/sensitivity
A: The sensation is one of the capacities shown by a residing creature to keep up with its life, where…
Q: Name of diseases of viruses plant diseases and their scientific name
A: Viruses are non living.they cause various diseases and they infect the plants,animals and bacteria…
Q: How do most plant viruses enter plants?
A: Viruses are very very small particle that are not considered living as they don't have their own…
Q: OW=Low; X = High; Y = C4 plant; Z= C3 plant
A: Background Information C3 Plants: These are those plants that grow well where the temperature is…
Q: Plant viruses (a) typically cause rapid death of infected plants (b) are mainly retroviruses (c) can…
A: Answer is e.) Can be transmitted from one generation to the next to infected seeds.
Q: What are the two general ways by which plant pathogens gain entry into the host plant tissue? What…
A: The organisms that enter the body of a plant (host) and affect the normal plant physiology by their…
Q: How does Bt toxin protect the corn plant against the corn borer?
A: Bt toxin has been widely used as a biological insecticide against lepidopteran insect larvae…
Q: which
A: Introduction:- Some plants that live in hot, dry climate conditions maintain low oxygen levels in…
Q: What are the four phases of growth for an epidemic? Show these phases on a diagram. (Plant…
A: The study of infection in plant populations is known as plant disease epidemiology. Plant illnesses…
Q: Choose the best answer for following question It is present in a gaseous form. a. auxin…
A: Introduction Plant Hormone is also known as Phytohormones. They are the signaling molecules…
Q: Plant pathogens strategies varies when it comes to damage their respective host. Justified the above…
A: Plant pathogens are the organisms, such as fungi, bacteria, protists, nematodes, and viruses that…
Q: Draw the common pest damage/sign of the pest given and supply the information asked. You can use…
A: Mango Anthracnose disease in mango trees.
Q: We can produce a virus free plant from virus infected parent plant. How?
A: The plants belonging to the genus of Allium like onion, garlic , chive etc are the edible plants…
Q: Nicotine is a toxin in tobacco associated with “antibiosis” type of host plant resistance.
A: For more than 350 million years, plants and insects have coexisted. Both have evolved techniques to…
Q: Can the specific component of the plant immune system (the one using R genes) defend against both…
A: Plants show various mechanism to prevent the pathogens. Production of antimicrobial components are…
Q: Systemic acquired resistance______ . a. occurs in response to pathogen detection b. causes the…
A: Introduction When compared to susceptible plant varieties under similar climatic conditions and…
Q: What are metabolism of virus infected plant?
A: Plants can be infected by viruses. It all may start with an insect bite. The virus only has to reach…
Q: Choose the correct word: The virus attacks ______________ cells in the brain. Select one: a.…
A: Viruses are obligatory intracellular parasitic organisms. A virus must connect to a living cell,…
Q: Once a plant has detected a pathogen, how does it protect itself?
A: Infection refers to the entry of microorganisms into a host body followed by the multiplication of…
Q: Name& explain the bind of interaction in the following.i) Algae & fungi inii) Head louse…
A: A biological interaction is the effect that a pair of organisms living together in a community have…
Q: The pieces of plant parts show better response to the gibberellin treatment. Select one: O a. FALSE…
A: Gibberellic acid has been used for long in the agriculture because of the properties of plant growth…
Q: Chemical Defenses: What is the benefit of having an inducible chemical defense, as opposed to a…
A: Plants respond to herbivory through a variety of morphological, biochemical, and molecular pathways,…
Q: -One of the following cardiać poison is prötöpläsmic polson wi effect: - italis. mine low oleander…
A: Yellow oleander is the plant whose all parts are toxic and contain a variety of cardiac glycosides…
Q: fungal pathogen is detected trying to enter a plant cell, the cell may make a ___________ to try to…
A: An organism causing the disease to its host is known as the pathogen. The pathogen may comprise…
Q: Virus may have a broad or a narrow tropism. Explain what this means.
A: A virus is a tiny piece of genetic material, such as DNA or RNA, encased in a protein coat. A virus…
Q: The main difference between plant defense mechanisms that use chemical secondary metabolites and…
A: Answer : Option (2) is right.- the metabolites are present at all times, and the systemic response…
Q: I chose plant to write about for fun so write about that one.
A: Plant They are the autotrophic organisms that produces their own food by the process of…
Q: Comparison between plants and humans defenses in DEFENSE MECHANISMS s
A: Biological defence mechanism is a form of adaptation that promote the survivability of an organism…
Q: A plant which grow on another plant without apparent harm to the host plant is called
A: In plant communities, plants are able to interact with other plant in either positive, negative or…
Q: Which of the following statements best describes what is depicted in the above image? The leaf in…
A: Plant defense mechanism are required for protection against herbivores they help the plant to not…
Q: Black spot fungus is a disease that is known to attack roses in humid climates. At first, small…
A: The black spot is a type of fungal disease that affects roses. The fungus develops as black spots on…
Q: What is the effect of the plant pathogen to the infected or diseased plant?
A: The plants are formed of roots, stem, leaves, fruits and flowers. The conduction system in plants is…
Q: Contrast horizontal and vertical transmission of virusesin plants.
A: The mode of transmission of viruses differs from organism to organism. It is transmitted by the bite…
Q: Plants have systemic defense mechanisms ( those that are not normally active but can be induced when…
A: Plant defense describes a range of adaptations evolved by plants that improve their survival and…
Q: Plant roots receive all of the following from the symbiotic association with fungi except: O…
A: It is the symbiotic association between plant roots and fungi. Mycorrhiza is beneficial to plants by…
Pathologists always say in case of plant viral diseases not to target message (virus) but the messenger?
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- Virus don’t have the muscles or flagella but still able to be systemic in plants. Explain.You are attending a presentation at your local gardening supply store. The speaker warns that insects such as aphids that infest your garden may cause viral plant infections. Explain the link between insects and plant viruses.Is mother plant and stock plant same? How meristem culture produce virus free plants. ( Subject: plant tissue and cell culture)
- Plants have systemic defense mechanisms (i.e., those that are not normally active but can be induced when the plant is under attack). Briefly describe an example of one systemic defense, including the processes, structures and/or molecules involved.What is the name of the compound that is produced by wounded tissue that leads to agrobacterium entering the plant? Cytokines Acetosyringone Opines AuxinsWhat are metabolism of virus infected plant?
- Virus may have a broad or a narrow tropism. Explain what this means.Which of the following is an effective plant defense against insect herbivory? Select one: a. Hypersensitive response b. Gene-for-gene resistance c. Salicylic acid d. Protease inhibitors e. Resistance genesThe .7 thigmonastic movements of plant is caused .by touch
- Plant viruses (a) typically cause rapid death of infected plants (b) are mainly retroviruses (c) can be killed with antibiotics (d) are transmitted throughout the plant body by insects (e) can be transmitted from one generation to the next through infected seedsIt refer to the structures of the pathogen that are found associated with the infected plant (i,e., fungal mycelia, fruiting bodies, bacterial ooze, sclerotial bodies)Some plants are recognized by fungal pathogens on the basis of their stomatal pores. Which of the following would provide these plants immunity from fungal infection? a. Removing all of the stomata from the plant b. Changing the spacing of stomatal pores in these plants c. Reinforcing the cell wall in the guard cells of stomatal pores d. Increasing the number of trichomes on the surfaces