Structural and functional alterations in photosynthetic apparatus of plants under cadmium stress

被引：281

作者：

Parmar, Pooja ^{[1
]}

Kumari, Nilima ^{[1
]}

Sharma, Vinay ^{[1
]}

机构：

[1] Banasthali Univ, Dept Biosci & Biotechnol, Jaipur 304022, Rajasthan, India

来源：

BOTANICAL STUDIES | 2013年 / 54卷

关键词：

Cadmium; Photosynthesis; Chlorophyll; Chloroplast; PSII; PSI; AMINOLEVULINIC-ACID DEHYDRATASE; PISUM-SATIVUM L; CHLOROPHYLL FLUORESCENCE; PHOSPHATASE ACTIVITIES; PIGMENT COMPOSITION; INDUCED INHIBITION; OXIDATIVE STRESS; TOXICITY; CD; SEEDLINGS;

D O I：

10.1186/1999-3110-54-45

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cadmium is a potentially toxic heavy metal that hampers plant productivity by interfering with their photochemistry. Cd causes disturbances in a range of physiological processes of plants such as photosynthesis, water relations, ion metabolism and mineral uptake. Cd pronouncedly affects photosynthesis by alteration of its vital machinery in all aspects. Photosynthesis is a well organised and sequential process fundamental to all green plants and microorganisms which involves various components, including photosynthetic pigments and photosystems, the electron transport system and CO2 reduction pathways. Any damage at any level caused by Cd, critically affects overall photosynthetic capacity. Present review focuses on key effects of Cd on photosynthetic apparatus including chloroplast structure, photosynthetic pigments, Chl-protein complexes and photosystems resulting in overall decrease in efficiency of carbon assimilation pathway.

引用

页数：6

共 73 条

[21] Photosynthesis and growth responses of pea Pisum sativum L. under heavy metals stress [J].