干旱区生态环境知识资源中心(Arid): Drought stress alters iron accumulation in Sorghum bicolor seeds

Arid

DOI	10.1016/j.envexpbot.2022.105093
	Drought stress alters iron accumulation in Sorghum bicolor seeds
	Araki, Ryoichi; Takano, Yuka; Miyazaki, Hidetoshi; Ii, Hiroyuki; An, Ping
通讯作者	Araki, R
来源期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
EISSN	1873-7307
出版年	2022
卷号	204
英文摘要	Sorghum (Sorghum bicolor L.) is a cultivated food crop with iron-rich seeds that thrives in semi-arid areas. Although the mechanism of iron transport has been investigated in detail at the molecular level, the effects of drought stress on its regulation remain unclear. We cultivated sorghum in a chamber without (control) and with drought stress to determine iron accumulation in seeds. The drought stress treatment significantly increased the iron content by approximately 2-fold in seeds and decreased it by 0.6-fold in leaves. The results of RNA -sequencing leaves indicated that drought stress impaired the expression of genes involved in photosynthesis. This agreed with the finding that drought stress significantly reduced plant biomass. The expression of genes encoding vacuole iron transporter and ferritin were increased under drought stress. These expression profiles were confirmed by quantitative polymerase chain reaction, which indicated that expression of genes encoding the vacuole iron transporter and ferritin was significantly increased in leaves and seeds under drought stress. Furthermore, photosynthesis impaired by drought stress might trigger a disturbance in iron homeostasis. Therefore, increased vacuolar transporters and ferritin transcription might be important for safely storing excess iron. Our data suggested that maintaining iron homeostasis via vacuole iron transporters and ferritin enhances iron accumulation in seeds under drought stress.
英文关键词	Sorghum bicolor Drought stress Iron Mineral Seed
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000888100200007
WOS关键词	DIFFERENTIAL EXPRESSION ANALYSIS ; METAL-NICOTIANAMINE TRANSPORTER ; ASPARAGINE SYNTHETASE ; HOMEOSTASIS ; TRANSLOCATION ; GENE ; OSFRDL1 ; ROOT ; IRT1 ; FE
WOS类目	Plant Sciences ; Environmental Sciences
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392440
推荐引用方式 GB/T 7714	Araki, Ryoichi,Takano, Yuka,Miyazaki, Hidetoshi,et al. Drought stress alters iron accumulation in Sorghum bicolor seeds[J],2022,204.
APA	Araki, Ryoichi,Takano, Yuka,Miyazaki, Hidetoshi,Ii, Hiroyuki,&An, Ping.(2022).Drought stress alters iron accumulation in Sorghum bicolor seeds.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,204.
MLA	Araki, Ryoichi,et al."Drought stress alters iron accumulation in Sorghum bicolor seeds".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 204(2022).