镉胁迫下甘蓝型油菜品种的生理生化反应

IF 2.3 3区农林科学 Q1 AGRONOMY

Plant, Soil and Environment Pub Date : 2022-09-21 DOI:10.17221/148/2022-pse

Z. Kovalíková, M. Komárková, J. Simek, A. Skarka, J. Tuma

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引用次数: 1

摘要

以4个不同品种的甘蓝型油菜(Brassica napus L.) CZL、Benefit、Iwas和中壮9为研究材料，分析了它们对高剂量镉(Cd)的生理反应及其Cd积累能力。在温室条件下，植物在土壤中暴露不同剂量Cd(0、50、100和150 mg Cd/kg) 30 d。所有品种的根镉积累量均大于茎镉积累量，以中壮9号镉积累量最高。最低Cd剂量后，转运因子最高的是CZL(0.8)和Benefit(0.6)。钾和钙的含量在不同处理和品种之间存在差异。叶绿素荧光参数和相对叶绿素含量受影响最小。水杨酸含量较高，脯氨酸含量急剧增加;因此，它可能被认为是一个更耐受性的品种。

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Physiological and biochemical responses of Brassica napus L. cultivars exposed to Cd stress

Four different rapeseed (Brassica napus L.) cultivars CZL, Benefit, Iwas and ZhongZhuang9, were used to analyse physiological responses to higher doses of cadmium (Cd) and their ability of Cd accumulation. Plants were exposed for 30 days to different Cd dosages (0, 50, 100, and 150 mg Cd/kg) in soil under greenhouse conditions. Cadmium was accumulated more in roots than in shoots of all tested cultivars, with the highest Cd in ZhongZhuang9. After the lowest Cd dose, the highest translocation factor was for CZL (0.8) and Benefit (0.6). The content of both K and Ca varied between treatments and cultivars. The chlorophyll fluorescence parameters and relative chlorophyll content were affected minimally. High constant levels of salicylic acid and a sharp increase in proline content were found mostly in Iwas; therefore, it may be considered as a more tolerant cultivar.

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来源期刊

Plant, Soil and Environment Agronomy, Soil Science-农艺学

CiteScore

4.80

自引率

4.20%

发文量

审稿时长

2.4 months

期刊介绍： Experimental biology, agronomy, natural resources, and the environment; plant development, growth and productivity, breeding and seed production, growing of crops and their quality, soil care, conservation and productivity; agriculture and environment interactions from the perspective of sustainable development. Articles are published in English.