C4 photosynthesis and water stress | Zendy

Oula Ghannoum | Zendy

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C4 photosynthesis and water stress

Author(s) -

Oula Ghannoum

Publication year - 2008

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcn093

Subject(s) - photorespiration , photosynthesis , biology , c4 photosynthesis , water stress , fight or flight response , botany , mechanism (biology) , biochemistry , philosophy , epistemology , gene

In contrast to C(3) photosynthesis, the response of C(4) photosynthesis to water stress has been less-well studied in spite of the significant contribution of C(4) plants to the global carbon budget and food security. The key feature of C(4) photosynthesis is the operation of a CO(2)-concentrating mechanism in the leaves, which serves to saturate photosynthesis and suppress photorespiration in normal air. This article reviews the current state of understanding about the response of C(4) photosynthesis to water stress, including the interaction with elevated CO(2) concentration. Major gaps in our knowledge in this area are identified and further required research is suggested.

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