Navigation Links
Photorespiration


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:11/3/2014)... Research and Markets has announced the ... Markets and Companies" to their offering. ... which have already started to play an important role in ... the old fashioned bone marrow transplants. Role of cells in ... become a part of medical practice. Stem cells ...
(Date:11/3/2014)...  NeuroSigma ® , Inc. (NeuroSigma), a ... on commercialization of its non-invasive Monarch ... neurological and neuropsychiatric disorders, announced today that the ... Notice of Allowance for Mexican Patent Application No. ... and the Regents of the University of California ...
(Date:11/2/2014)... of Physics World , James Dacey explores the ... death" to take their innovations from the lab into ... challenge facing all start-up companies as they move from ... of two main factors: physics-based inventions are usually far ... out to be a lot more complicated than had ...
Breaking Biology News(10 mins):Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 2Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 3NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 2NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 3The 'valley of death' facing physics start-ups 2
... Ariz. (Sept. 13, 2012) -- Shane Snyder, who earlier ... Water Works Association (AWWA), has been invited to present ... 3,500 at the 2012 International Water Association,s (IWA) World ... professor,s presentation will focus not only on his research ...
... Scientists have found the answer to why female killer whales have ... their adult sons. Led by the Universities of Exeter and York ... the research shows that, for a male over 30, the death ... his death within the following year. The reason for the ...
... of bioengineering at Stanford University, has won a Director,s ... award includes a five-year, $2.5 million grant to be ... to affect a broad area of biomedical or behavioral ... to explore the use of synthetic biology platforms and ...
Cached Biology News:UA engineering professor Shane Snyder to speak in Korea on international water quality 2Long menopause allows killer whales to care for adult sons 2Long menopause allows killer whales to care for adult sons 3
Other biology definitionOther Tags