镉胁迫下水稻光合作用的光反应：铁、钙和锌补充剂的影响

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES

The EuroBiotech Journal Pub Date : 2019-10-01 DOI:10.2478/ebtj-2019-0021

A. Sebastian, M. Prasad

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引用次数: 7

摘要

摘要一些矿物质营养物质可能有助于减轻植物的镉胁迫。因此，分别在两个印度水稻品种MO-16和MTU-7029上研究了Fe、Ca和Zn对镉胁迫下光合作用光反应的影响。Fe和Ca离子的外源应用有助于在Cd胁迫期间维持量子效率和线性电子传输。此外，在添加Fe和Ca的Cd处理过程中注意到生物量的恢复。研究发现，铁、钙和锌的补充增强了类胡萝卜素的积累以及非光化学猝灭。叶绿素a/b比率随着镉的积累而增加，这是增加光采的一种策略。脂质过氧化水平在Cd+Zn处理期间最高。以上结果表明，补充铁和钙离子有助于减轻镉对水稻光合作用光反应的胁迫。

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Photosynthetic light reactions in Oryza sativa L. under Cd stress: Influence of iron, calcium, and zinc supplements

Abstract Some mineral nutrients may help to alleviate cadmium stress in plants. Therefore, influence of Fe, Ca, and Zn supplements on photosynthesis light reactions under Cd stress studied in two Indian rice cultivars namely, MO-16 and MTU-7029 respectively. Exogenous application of both Fe and Ca ions helped to uphold quantum efficiency and linear electron transport during Cd stress. Also, recovery of biomass noticed during Cd treatment with Fe and Ca supplements. It was found that accumulation of carotenoids as well as non photochemical quenching enhances with Fe, Ca, and Zn supplements. Chlorophyll a/b ratio increased with Cd accumulation as a strategy to increase light harvest. Lipid peroxidation level was ascertained the highest during Cd plus Zn treatments. Above results point that both Fe and Ca ions supplements help to alleviate Cd stress on photosynthesis light reactions of rice plants.

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来源期刊

The EuroBiotech Journal Agricultural and Biological Sciences-Food Science

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

10 weeks