Cadmium Stess in Rice Plants: Influence of Essential Elements

水稻鎘逆境：必要元素之影響

高景輝(Ching-Huei Kao)

《作物、環境與生物資訊》 11卷3期 (2014/09) Pp. 113-118

https://doi.org/10.30061/CEB.201409_11(3).0001

摘要

鎘是一種造成植物毒害的重金屬，必要元素則在植物生長與發育上扮演重要角色，而鎘吸收與必要元素吸收之間會相互競爭。作物生長於田間，常會遭遇多種不同之逆境，例如營養元素缺乏與鎘逆境可在田間同時發生。本文旨在討論：（1）鐵與鉀對水稻鎘逆境之緩和效應、（2）缺鉀與缺鎂後水稻可克服後續之鎘逆境、以及（3）缺氮與缺鈣後會增強水稻後續之鎘逆境。

關鍵字

鎘逆境 ； 必要元素 ； 營養元素缺乏 ； 水稻

並列摘要

Cadmium is a heavy metal that is toxic to plants. Essential elements are important for plant growth and development. The uptake of cadmium may take place in competition with essential elements. In the field, crops are routinely subjected to a combination of different abiotic stresses. Nutrient deficiency and cadmium stress represent an example of two different abiotic stress conditions that occur in the field simultaneously. In this review we discuss (1) mitigating effects of iron and potassium on cadmium stress in rice, (2) potassium and magnesium deficiencies protect rice seedlings against subsequent cadmium stress, and (3) nitrogen and calcium deficiencies enhance subsequent cadmium stress in rice seedlings.

並列關鍵字

Cadmium stress ； Essential elements ； Nutrient deficiency ； Rice