Navigation Links

Photorespiration is an alternate pathway for rubisco, the main enzyme of photosynthesis (specifically, the Calvin cycle). Although rubisco favors carbon, it can also use oxygen, producing glycolate . This usually occurs when oxygen levels are high; for example, when the stomata (tiny pores on the underside of the leaf) are closed to prevent water loss.

The reaction is:

RuBP + rubisco + O2 → phosphoglycolate

The glycolate is then sent to peroxisomes.

Photorespiration is a wasteful process because no PGAL is created. PGAL is used to create nearly all of the food and structures in the plant. Plants cope with photorespiration via CAM and C4 metabolism.


(Date:10/29/2015)... ARBOR, Mich. , Oct. 29, 2015 /PRNewswire/ ... Eurofins Genomics for U.S. distribution of its DNA ... DNA-seq kit and Rubicon,s new ThruPLEX Plasma-seq kit. ... to enable the preparation of NGS libraries for ... plasma for diagnostic and prognostic applications in cancer ...
(Date:10/27/2015)... , Oct. 27, 2015 In the present ... of concern for various industry verticals such as banking, ... to the growing demand for secure & simplified access ... ,sectors, such as hacking of bank accounts, misuse of ... equipment such as PC,s, laptops, and smartphones are expected ...
(Date:10/26/2015)... LAS VEGAS , Oct. 26, 2015 ... in modern authentication and a founding member of the ... its latest version of the Nok Nok™ S3 Authentication ... standards-based authentication that supports existing and emerging methods of ... ideal for organizations deploying customer-facing applications that require Internet ...
Breaking Biology News(10 mins):
Other biology definition