Earth’s atmosphere is nearly 80% nitrogen (N) but then the element is not sufficiently available to the organisms. It is known that some of the organisms have the capacity to assimilate molecular nitrogen and convert it into assumable form (Fig. 11-1). In general, four main types of organisms are recognized which can assimilate molecular nitrogen. […]
Notes on Nitrogen Cycle (With Diagram)
Article Shared by 
Nitrogen Fixing Systems (With Diagram)| Plant Physiology
Article Shared by
IN this article we will discuss about the Subject-Matter and Mechanism of Nitrogen Fixing Systems. Subject-Matter of Nitrogen Fixing Systems: Blue-green algae share with bacteria the potentiality of fixing atmospheric nitrogen. To date, nearly 50 spp. are reported to be active nitrogen fixers. Nitrogen fixation was demonstrated initially in Nostocpunctiformae and Anabaena sp. In 1968, […]
Notes on Phytochrome | Plant Physiology
Article Shared by
In plants, there is a photo reversible pigment which is called phytochrome (P), chromophoric protein, and exists in two forms: one which absorbs red (Pr) and the other one which absorbs far-red light (Pfr). Bestowed with such a versatility of the molecule, several bio-chemicals, physiological and morphogenetic responses can be regulated in the plants. It […]
This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Answer Now and help others.
Answer Now
Answer Now
Here's how it works:
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
Powered by WordPress. Designed by 