Tag: heterocyst

CYANOBACTERIA ACT AS NITROGEN-FIXING ORGANISMS: A REVIEW | Asian Journal of Plant and Soil Sciences

Cyanobacteria, also known as Cyanophyta, are a phylum of bacteria with chlorophyll and phycobiliprotein that can fasten carbon in the same way as plants do by photosynthesis and oxygen evolution. Many species engage in nitrogen fixation to convert a nitrogen supply from the atmosphere into a functional form. Rice, corn, soybeans, and groundnuts all benefit from freeliving N2fixing cyanobacteria and Azolla (a symbiotic mixture of water ferns Azolla, Nostoc, and Anabaena).When nitrogen is scarce, some cyanobacteria recognise a cell called a heterocyst, which provides an ideal microoxic environment for the oxygensensitive enzyme nitrogenase to work properly. In heterocystous cyanobacteria, the nitrogenase complex is involved in N2 fixation, which is followed by hydrogen production. Several species of cyanobacteria have nif genes, which can be organised at the molecular level using polymerase chain reaction.In cyanobacteria, nitrogen regulation is regulated by Ntc A, a transcriptional regulator that belongs to the activator of the catabolite factor family and thus differs from the wellknown Ntr scheme. This research aims to gather valuable information about the characteristics of cyanobacteria and their potential position in resolving the planet’s agricultural and environmental challenges in the future.


Please see the link – https://ikprress.org/index.php/AJOPSS/article/view/5092

CYANOBACTERIA ACT AS NITROGEN-FIXING ORGANISMS: A REVIEW | Asian Journal of Plant and Soil Sciences

Cyanobacteria, also known as Cyanophyta, are a phylum of bacteria that have chlorophyll and phycobiliprotein and can fasten carbon like plants through photosynthesis of oxygen evolution. Nitrogen fixation is a prevalent phenomenon exhibited by many organisms to fix the environmental nitrogen source in a usable form. Free-living N2-fixing cyanobacteria and Azolla (a symbiotic combination of water fern Azolla, Nostoc and Anabaena) are widely used as organic fertilizer for rice as well as corn, soybean, groundnuts. Under nitrogen limitation, a portion of the cyanobacteria can recognize a particular cell called heterocyst that offers an ideal microoxic climate for the legitimate working of oxygen-sensitive enzyme nitrogenase. Nitrogenase complex is engaged in N2 fixation in heterocystous cyanobacteria which is also followed by hydrogen manufacturing. A cyanobacteria possesses nif genes among multiple such species, which can be organized by polymerase chain reaction at the molecular level. Nitrogen control in cyanobacteria is mediated by Ntc A, a transcriptional regulator that belongs to the activator of the catabolite factor and is therefore distinct from a well-characterized Ntr scheme. This study is an attempt to recruit useful knowledge about the characteristics of cyanobacteria and their possible role in addressing the future wellbeing of the planet’s agricultural and environmental challenges.

Please read full article – https://www.ikprress.org/