Journal
PHOTOSYNTHETICA
Volume 46, Issue 4, Pages 627-630Publisher
SPRINGER
DOI: 10.1007/s11099-008-0107-8
Keywords
anatomic traits; Arachis hypogaea; carotenoids; chlorophyll fluorescence; intercellular CO2 concentration; leaf structure; palisade and spongy mesophyll; stomata dimensions; stomatal conductance; transpiration rate
Categories
Funding
- Natural Science Foundation of Jiangsu Province [BK2006148]
- Natural Science Foundation for college of Aihui Province [KJ2008B66ZC]
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Cadmium ( Cd) treatments caused an inhibition in the net photosynthetic rate ( P-N) of peanut ( Arachis hypogaea) plants, due to the reduction of stomatal conductance ( g(s)) and photosynthetic pigment contents, as well as the alteration in leaf structure. The decrease of the transpiration rate and gs might result from the Cd-induced xerophyte anatomic features of leaves ( i.e. thick lamina, upper epidermis, palisade mesophyll, high palisade to spongy thickness ratio, as well as abundant and small stomata). The decline of P-N was independent of the impairment in photosystem 2.
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