Q: Contrast primary growth with secondary growth.
A: The growth that occurs by the action of primary meristem and increases the stem length is called…
Q: Explain the process by which an attack of hayfever follows exposure to pollen.
A: Another name we use to define hay fever is allergic rhinitis. n this disease the affected person…
Q: Describe one example of a plant chemical defense mechanism.
A: Plants are able to defend themselves from the herbivores by producing chemical compounds such as…
Q: How does a plant “know” it is under attack by a pathogen or herbivore? (name one thing the plant can…
A: Pathogens are basically any invader that are capable of hampering the normal processing of the body…
Q: a. What is the difficulty in ridding the epidermal tissues of certaindermatophytes?b. What is…
A: Dermatophyte word is made up of two words - derma, meaning skin and phyton meaning plants. They…
Q: Are carrots, onion, potato, ginger, and turnip is herbaceous or suffrutescent?
A: Suffrutescent are the plants that have woody or half-woody stems, especially at the basal part.…
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: Describe how pathogens enter and move within the plant body.
A: The plant pathogen can be defined as the organism that will cause the disease on the plant. However,…
Q: Distinguish between biotrophic and necrotrophic plant pathogens.
A: The plant pathogen is the organism that causes the disease on a plant. However the relatives of some…
Q: How are you going to diagnose a plant disease which is not familiar to you?
A: Plant pathology is the study of plant diseases, including their causes, methods of occurrence,…
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: What do plant pathogens and parasite have in common?
A: Plant pathogens are those cause disease in plants.examples include Bacteria, Protozoa,Fungi etc.…
Q: Explain what happens when a pathogen enters a plant’s tissues.
A: Answer- The plants lack well organized immune system.
Q: What are the three major factors involved in the development of plant diseases?
A: There are 3 major factors involved in the development of plant diseases. Each of them is described…
Q: Outline how plants protect themselves against pathogenic attack.
A: Plants represent a rich source of nutrients for many organisms including bacteria, fungi, protists,…
Q: What are the differnces between primary and secondary metabolises and how do some plants recognize…
A: Metabolites are the products formed from metabolic activities. Metabolites can be primary and…
Q: Which plant yields cannabinoids? List any two cannabinoids. Name the part of the body that is…
A: Cannabinoids are the natural compounds that are obtained from the plant. The commonly called names…
Q: Why is vegetative propagation practiced for growing some types of plants?
A: Any vegetative parts of the plant such as stem, root, leaf or even buds have the ability to give…
Q: Plant Pathology: Is Koch’s Postulate a relevant technique in diagnosing plant disease caused by…
A: Plant pathology is a branch of botany and primarily deals with the scientific study of diseases in…
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: List plant defenses against herbivores.
A: in this question, we to write the list of plant defenses against herbivores.
Q: What are soil borne diseases and how to control them?
A: Soil is a reservoir for nutrients and water which are taken up by plants for their growth and…
Q: What is meant by variability among pathogens? Explain the significance of the variability of…
A: Generally, the offsprings produced by sexual reproduction do not have genetic information identical…
Q: e the pesticides commonly used in the control of plant disea
A: There are a number of pesticides on the market that are meant to prevent plant diseases by blocking…
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: What type of plant problems result from nitrogen and calcium deficiencies?
A: All plants require biotic and abiotic factors such as, sunlight, proper temperature, moisture, air,…
Q: Agrobacterium tumefaciens carries a _______ that enters dicotyledonous (dicot) plant cells,…
A: It is required to identify the agent in Agrobacterium tumefaciens that enters dicotyledonous (dicot)…
Q: ifferentiate signs vs. symptoms of plant
A: A sign of plant disease is physical evidence of the pathogen. For example, fungal fruiting bodies…
Q: Describe the way gibberellin causes plant growth
A: Gibberellin or Gibberellic acid are the groups of hormones present in plants. In-plant it is…
Q: List 5 insects that attack ornamental plants, and for each of the 5 insects, indicate the stage of…
A: Insects are known to cause damage to crops by either direct or indirect modes. The insect can…
Q: Explain what occurs when a plant exhibits heliotropism
A: Heliotropism is the motion of plant parts in response to the sun.
Q: Are potato, onion, turnip, carrot, and ginger are herbaceous or suffrutescent?
A: Plants are mostly multicellular living beings, transcendently photosynthetic eukaryotes of the realm…
Q: How are tree affected when there is a decrease in day length?
A: Answer- Day length is one of the main criteria that affects all the organisms directly or…
Q: Can plants develop immunity to specific pathogens?
A: Immunity is a biological system that can recognize the self molecules and rejects the molecules…
Q: What is a mycorrhizal association? What benefit does the plant derive from the association?
A: Symbiosis is the coexistence of one or more organisms. Partnerships for mutual benefit are referred…
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: How can insects make plants more susceptible to pathogens?
A: Epidermis is the outermost layer of the stem that acts as a protection to the plant. Beneath the…
Q: What does a sub-cause represent
A: Causes can be defined as the factors or the events that are responsible directly or indirectly to…
Q: What are some cultural methods that can be used to control weeds?
A: The undesirable plant species growing in undesired regions like along roadsides, sidewalks, or…
Q: How do systemic insecticides affect plants?
A: Insecticides are chemicals substances used to eliminate insects. They involve ovicides (Destroy…
Q: What is the cause of the bleeding in the plants?
A: Bleeding in animals means the haemorrhage or uncontrolled outflow of blood. In plants, this term…
Q: Through mycorrhization, a plant obtains important nutrients such as ________. a. phosphorus, zinc,…
A: Mycorrhizae is a symbiosis between a fungus and the roots of a vascular plant. Mycorrhizas are…
Q: what is the usefulness of plants as a model for studying the pathogenicity of P. aeruginosa
A:
What is the effect of the plant pathogen to the infected or diseased plant?
Step by step
Solved in 2 steps
- What is the cause of the bleeding in the plants?What is meant by variability among pathogens? Explain the significance of the variability of pathogens to the occurrence of plant diseases.The nutrition of some plants is enhanced by a mutually beneficial association between a root and a fungus. The association is known as _________. a. root nodule c. root hair b. mycorrhiza d. hypha