Production of substances - responses to infection, Biology

Production of substances interfering with virus proliferation

In some cases plants are known to synthesise chemicals that inhibit crucial functions of pathogens. This makes plants immune to infection by respective pathogens. Let us consider what happens when cowpea mosaic virus infects a plant. Certain cultivars of cowpea produce a strong inhibitor of a viral proteinase activity. This proteinase is required to complete the life cycle of the virus as seen in the extracts of the protoplasts of these plants. These cultivars behave as immune against cowpea mosaic virus.

Resistance of many plants to viruses is a passive preformed type e.g., mechanical barriers, lack of compatible infection sites or metabolites required for virus replication. Yet a definite part of resistance is due to active plant response. This includes new synthesis of barriers against infection and spread of virus, and also of new substances interfering with virus replication.

Posted Date: 1/18/2013 12:46:03 AM | Location : United States







Related Discussions:- Production of substances - responses to infection, Assignment Help, Ask Question on Production of substances - responses to infection, Get Answer, Expert's Help, Production of substances - responses to infection Discussions

Write discussion on Production of substances - responses to infection
Your posts are moderated
Related Questions
Rainfall is high, sometimes higher than tropical rain forests but seasonal. There are pronounced wet and dry periods, and so are winter and summer seasons. The soils are brown in c

what is ecology

What is Plastids? The most obvious difference between plant cells and other eukaryotic cells is that cells of most plants contain unique organelles called plastids, which inclu

Measuring ecosystem diversity is not easy, and ther e is no definite index for its measurement. It is generally assessed by the measure of species diversity in an ecosystem, often


Q. Which chemical element is the central in the chlorophyll molecule? The chemical element that is the central in the chlorophyll molecule is magnesium. One atom of magnesium


Feeding Mechanisms of Animals All animals have evolved successful methods for extracting their required nutrition from the environment. Thus we find a diversity of feeding mec

What technique would you use to see if two proteins interact with each other inside of a cell?

What do you understand by the terms retrogradation and gelatinization? The realignment of the amylose and amylopectin and swollen starch granules to form a pocket is termed