Photosynthesis in Eurasian Watermilfoil (Myriophyllum spicatum L.)
Author(s) -
Ronald A. Stanley,
Aubrey W. Naylor
Publication year - 1972
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.50.1.149
Subject(s) - carboxylation , myriophyllum , photosynthesis , compensation point , botany , biology , chemistry , ecology , biochemistry , aquatic plant , macrophyte , transpiration , catalysis
Gas exchange of Eurasian watermilfoil (Myriophyllum spicatum L.) indicated a near-zero CO(2) compensation point and a high temperature optimum for photosynthesis. These properties are characteristic of plants fixing CO(2) by a beta-carboxylation mechanism. Operation of the Calvin cycle was shown and no evidence for beta-carboxylation was obtained. These results indicate that near-zero CO(2) compensation points are not dependent on a beta-carboxylation mechanism.
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