干旱区生态环境知识资源中心(Arid): 干旱胁迫对3种不同光合类型荒漠植物叶绿体和线粒体超微结构的影响

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	干旱胁迫对3种不同光合类型荒漠植物叶绿体和线粒体超微结构的影响
其他题名	Effect of Soil Drought Stress on the Ultramicrostructures of Chloroplasts and Mitochondria in Three Desert Plants with Different Photosynthetic Types
	闻志彬 1; 莱孜提·库里库 2; 张明理 1
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2016
卷号	36 期号:6 页码:1155-1162
中文摘要	以荒漠木本C3植物天山猪毛菜、C3-C4中间型植物松叶猪毛菜、C4植物木本猪毛菜为研究对象,采用盆栽控水试验,设置正常供水和轻度、中度和重度干旱处理(土壤含水量分别为田间持水量的80%、60%、45%和35%),研究不同程度干旱胁迫对3种不同光合类型荒漠植物叶片超微结构的影响。结果表明:(1)正常水分条件下,叶肉细胞中各细胞器结构完整。(2)轻度干旱胁迫下,3种植物叶片超微结构未受损伤,无明显变化。(3)中度干旱胁迫下,天山猪毛菜和松叶猪毛菜叶肉细胞壁界限不清晰,类囊体片层扩张且排列不紧密,不同之处在于,天山猪毛菜线粒体最先出现降解,内含物流失,而松叶猪毛菜线粒体外膜轮廓变形,嵴减少;木本猪毛菜线粒体无明显变化,叶绿体轻微扩张。(4)重度干旱胁迫下,天山猪毛菜和松叶猪毛菜叶绿体受损且结构混乱,线粒体出现降解;木本猪毛菜叶绿体出现膨胀,线粒体外膜轮廓模糊,嵴减少且结构模糊不清楚。研究认为,不同程度干旱胁迫下木本猪毛菜叶绿体和线粒体的受损程度都最低;干旱胁迫下天山猪毛菜和松叶猪毛菜叶绿体的受损程度大致相似;松叶猪毛菜和木本猪毛菜线粒体对干旱胁迫的耐受力要比叶绿体强。
英文摘要	Three desert plants with different photosynthetic types,including C3plant Salsola junatovii,C3- C4plant S.laricifoliaand C4plant S.arbuscula,were used to investigate the effect of soil drought stress on the ultramicrostructure of mesophyll cells under pot culture condition using transmission electron microscope. The results showed that:(1)Under the normal water state,the organelles of mesophyll cells kept integrity.(2)Under the slight drought stress,the ultramicrostructure of three plants were not damaged.( 3)Under the condition of moderate drought stress,for S.junatovii and S.laricifolia,wall boundary of mesophyll cells were not clear and the thylakoids expanded,but the differences between these two plants were that mitochondria of S.junatovii firstly appeared degradation,and its inclusions were partly lost.For S.laricifolia,the outer membrane of mitochondria was deformed and the ridges were reduced. The mitochondria of S.arbuscularemained normal,but the chloroplasts slightly expanded.(4) Under the severe drought stress,the chloroplasts of S.junatovii and S.laricifolia were damaged and mitochondria were degraded.For S.arbuscula,the chloroplasts expanded,the outer membrane of mitochondria was deformed and the ridges were reduced.These results have showed that the damage degree of S. arbusculain chloroplasts and mitochondria under different degree of drought stress was the lowest;For S. junatovii and S.laricifolia,the damage degree of chloroplasts under drought stress was similar;the mitochondria had better tolerance to drought stress than chloroplasts in S.laricifoliaand S.arbuscula.
中文关键词	干旱胁迫 ; 叶绿体 ; 线粒体 ; 光合类型 ; 荒漠植物 ; 藜科
英文关键词	soil drought stress chloroplast mitochondria photosynthetic type desert plant Chenopodiaceae
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5752929
来源机构	中国科学院新疆生态与地理研究所 ; 新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235155
作者单位	1.中国科学院新疆生态与地理研究所, 中国科学院干旱区生物地理与生物资源重点实验室, 乌鲁木齐, 新疆 830011, 中国; 2.新疆师范大学生命科学学院, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	闻志彬,莱孜提·库里库,张明理. 干旱胁迫对3种不同光合类型荒漠植物叶绿体和线粒体超微结构的影响[J]. 中国科学院新疆生态与地理研究所, 新疆师范大学,2016,36(6):1155-1162.
APA	闻志彬,莱孜提·库里库,&张明理.(2016).干旱胁迫对3种不同光合类型荒漠植物叶绿体和线粒体超微结构的影响.西北植物学报,36(6),1155-1162.
MLA	闻志彬,et al."干旱胁迫对3种不同光合类型荒漠植物叶绿体和线粒体超微结构的影响".西北植物学报 36.6(2016):1155-1162.