干旱区生态环境知识资源中心(Arid): First report of C-4/CAM-cycling photosynthetic pathway in a succulent grass, Spinifex littoreus (Brum. f.) Merr., in coastal regions of Taiwan

Arid

DOI	10.1016/j.flora.2018.08.005
	First report of C-4/CAM-cycling photosynthetic pathway in a succulent grass, Spinifex littoreus (Brum. f.) Merr., in coastal regions of Taiwan
	Ho, Che-Ling 1,2; Chiang, Jyh-Min 3; Lin, Teng-Chiu 4; Martin, Craig E.1
通讯作者	Ho, Che-Ling
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2019
卷号	254 页码:194-202
英文摘要	Leaf succulence is considered an adaptation to drought and salt stress, and it is often correlated with CAM photosynthesis. Although grasses often grow in arid and salty environments, leaf succulence (in the form of hydrenchyma) has only previously been reported in one C-3 grass. Leaf succulence is reported here for the first time in the Southeast Asian C-4 grass Spinifex littoreus, according to anatomical, water content, saturated water content, and mesophyll succulence indices. Because succulence and CAM are highly correlated, did leaf acidity and photosynthetic parameters were measured to determine whether CAM occurs in S. littoreus in different coastal regions of Taiwan. In situ did acidity fluctuations and nighttime stomatal closure indicate CAM-cycling in this grass. This rare form of intermediacy (C-4/CAM-cycling) has only previously been reported in Portulaca. The results of this study comprise the first report of any grass with CAM photosynthesis of any kind. Spinifex littoreus may provide an important model, in addition to Portulaca, for studying the regulation and evolutionary history of C-4 and CAM photosynthesis, and the finding of CAM biochemistry in a grass might also prove to be of special value for experimental breeding programs for improving drought and salt tolerance in cereal crops.
英文关键词	Leaf anatomy Hydrenchyma Water content Acid fluctuation Evolution of photosynthesis Poaceae
类型	Article
语种	英语
国家	USA ; Taiwan
收录类别	SCI-E
WOS记录号	WOS:000470109300016
WOS关键词	CRASSULACEAN ACID METABOLISM ; C-4 PHOTOSYNTHESIS ; LEAF SUCCULENCE ; WATER RELATIONS ; CAM ; PLANT ; EVOLUTION ; ANATOMY ; LEAVES ; INTERMEDIATE
WOS类目	Plant Sciences ; Ecology
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/2XILL650/215644
作者单位	1.Univ Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS 66045 USA; 2.Univ Penn, Dept Biol, Philadelphia, PA 19104 USA; 3.Tunghai Univ, Dept Life Sci, Taichung 407, Taiwan; 4.Natl Taiwan Normal Univ, Dept Life Sci, Taipei 106, Taiwan
推荐引用方式 GB/T 7714	Ho, Che-Ling,Chiang, Jyh-Min,Lin, Teng-Chiu,et al. First report of C-4/CAM-cycling photosynthetic pathway in a succulent grass, Spinifex littoreus (Brum. f.) Merr., in coastal regions of Taiwan[J],2019,254:194-202.
APA	Ho, Che-Ling,Chiang, Jyh-Min,Lin, Teng-Chiu,&Martin, Craig E..(2019).First report of C-4/CAM-cycling photosynthetic pathway in a succulent grass, Spinifex littoreus (Brum. f.) Merr., in coastal regions of Taiwan.FLORA,254,194-202.
MLA	Ho, Che-Ling,et al."First report of C-4/CAM-cycling photosynthetic pathway in a succulent grass, Spinifex littoreus (Brum. f.) Merr., in coastal regions of Taiwan".FLORA 254(2019):194-202.