Poisoning from plants is a common fear but an extremely rare event. It is true that a few plant species in certain localities can produce serious toxicity like dander (Nerium oleander), foxglove (Digitalis purpurea), jequirity pea (Abrus precatorius), castor bean (Ricinus communis), water hemlock (Cicuta maculata), Jerusalem cherry (Solanaum pseudocapsicum), free tobacco (Nicotina glauca), jimsonweed (Datura stramonium), autumn crocus (Colchicum [...]
In this article we will discuss about:- 1. Introduction to Respiratory Mechanism in Plants 2. Kinds of Respiration in Plants 3. Working of ETS (Electron Transport System). Introduction to Respiratory Mechanism in Plants: In higher plants air enters the leaves and young stems by the stomata and through the lenticels in older stems in which secondary growth has taken place. [...]
All plants have resistance to some pathogens under cutin conditions. Different plants defend themselves against pathogens in different ways. The defense mechanism of plants against pathogens falls into two categories: 1. Morphological or Structural Defense Mechanism 2. Biochemical Defense Mechanism. 1. Morphological or Structural Defense Mechanism: The first line of defense against pathogens is the surface barriers which a pathogen [...]