气候变化领域集成服务门户(CCPortal): Combating heavy metals in wheat grains under drought - is alien or ancient germplasm a solution to secure food and health?

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DOI	10.1016/j.jafr.2024.101118
	Combating heavy metals in wheat grains under drought - is alien or ancient germplasm a solution to secure food and health?
	Lan, Yuzhou; Kuktaite, Ramune; Chawade, Aakash; Johansson, Eva
发表日期	2024
ISSN	2666-1543
起始页码	16
卷号	16
英文摘要	Alien and ancient wheat germplasms have been utilized to combat diseases and improve yield performance under climate change. However, the potential risk of excessive heavy metal uptake with these germplasms has been less studied. In order to ensure food security, this study aimed to evaluate the levels of cadmium (Cd), lead (Pb) and mercury (Hg) in 30 wheat lines, including modern, old and wheat-rye introgression genotypes grown under three conditions i.e., control, early drought and late drought. The results of this study revealed a generally higher Cd grain accumulation in old and 1R genotypes than in the other genotype groups evaluated here, while old genotypes also showed an excess Pb grain concentration. The induced late drought resulted in an increased Cd uptake in wheat, leading to significantly elevated grain Cd concentration in modern, 1R, 1RS and 2R genotypes, while similar results were not obtained for the other heavy metals e.g. Pb or Hg. Specifically, an old genotype, 207, showed an extremely high Cd value across control and drought conditions. There was a greater genotypic variation in Pb concentration compared to Cd, while consistently high Hg concentrations were observed in several genotypes carrying 1R or 1RS. Some wheat-rye introgression genotypes, particularly those with the 3R chromosome, showed a low Cd accumulation across all treatments. The results from the present study pin-point the necessity of a rigorous assessment of heavy metal accumulation in wheat grain when utilizing ancient and alien genetic resources in breeding for disease resistance, and wheat resilience to environmental stress and climate change. Furthermore, the specific lines identified in this study with elevated heavy metal accumulation should be avoided in breeding programs. Additionally, mechanisms for the found differences in heavy metals accumulation among genotypes and treatments should be further revealed.
英文关键词	Wheat-rye introgression; Heavy metal concentration; Drought; Food security and toxicity
语种	英语
WOS研究方向	Agriculture ; Food Science & Technology
WOS类目	Agriculture, Multidisciplinary ; Food Science & Technology
WOS记录号	WOS:001222202800001
来源期刊	JOURNAL OF AGRICULTURE AND FOOD RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289978
作者单位	Swedish University of Agricultural Sciences
推荐引用方式 GB/T 7714	Lan, Yuzhou,Kuktaite, Ramune,Chawade, Aakash,et al. Combating heavy metals in wheat grains under drought - is alien or ancient germplasm a solution to secure food and health?[J],2024,16.
APA	Lan, Yuzhou,Kuktaite, Ramune,Chawade, Aakash,&Johansson, Eva.(2024).Combating heavy metals in wheat grains under drought - is alien or ancient germplasm a solution to secure food and health?.JOURNAL OF AGRICULTURE AND FOOD RESEARCH,16.
MLA	Lan, Yuzhou,et al."Combating heavy metals in wheat grains under drought - is alien or ancient germplasm a solution to secure food and health?".JOURNAL OF AGRICULTURE AND FOOD RESEARCH 16(2024).