What is host crop?
: a plant upon which an organism (such as an insect or mildew) lodges and subsists.
What is inoculum in plant pathology?
Inoculation is the pathogen or any part of the pathogen that contacts with the plant at certain site to initiate the infection process, such as spores, sclerotia, or fragments of mycelium of fungi may be fungal inoculum.
What is invasion in plant pathology?
This occurs when the pathogen invades the plant tissue and establishes a parasitic relationship between itself and the plant. Viruses, bacteria, and phytoplasmas are not able to actively penetrate or enter plant host tissues. Therefore they must rely on other methods to infect plant tissues and cells.
What is host plant short answer?
The plant on which a parasite climbs to derive its nutrition is called the host plant.
What is inoculation in plants?
Inoculation may be defined as the process of adding effective bacteria to the host plant seed before planting. The purpose of inoculation is to make sure that there is enough of the correct type of bacteria present in the soil so that a successful legume-bacterial symbiosis is established.
Which one is the example of host specific toxin?
1. Introduction
| Alternaria species (Pathotype) | Disease | Host-specific toxins |
|---|---|---|
| Cochliobolus (Helminthosporium carbonum) and Alternaria jesenskae | Leaf spot and ear rot disease in maize | HC-toxin |
| Alternaria brassicae | – | ABR-toxin |
| Alternaria panax | – | AP-toxin |
What is an aggressive nature called in plant pathology?
These traits, referred to as aggressiveness components, are: infection efficiency, latent period, spore production rate, infectious period and lesion size.
How do plant pathogens survive in the absence of host plant?
Parasitic phanerogams survive in the form of seeds and as eggs, cysts and larvae of parasitic nematodes serve as overseasoning structures. The ability to live saprophytically enables many plant pathogens to survive in the absence of growing susceptible plants. Saprophytic survival usually occurs in the soil.