The 3-ketoacyl-CoA synthase WFL is involved in lateral organ development and cuticular wax synthesis inMedicago truncatula

doi:10.1007/s11103-020-01080-1

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	The 3-ketoacyl-CoA synthase WFL is involved in lateral organ development and cuticular wax synthesis inMedicago truncatula
	Yang,Tianquan ; Li,Youhan ; Liu,Yu ; He,Liangliang ; Liu,Aizhong; Wen,Jiangqi ; Mysore,Kirankumar S.; Tadege,Million ; Chen,Jianghua
	2021
发表期刊	PLANT MOLECULAR BIOLOGY
ISSN	0167-4412
卷号	105 期号:1-2 页码:193-204
摘要	Key message A 3-ketoacyl-CoA synthase involved in biosynthesis of very long chain fatty acids and cuticular wax plays a vital role in aerial organ development inM. truncatula. Cuticular wax is composed of very long chain fatty acids and their derivatives. Defects in cuticular wax often result in organ fusion, but little is known about the role of cuticular wax in compound leaf and flower development inMedicago truncatula. In this study, through an extensive screen of aTnt1retrotransposon insertion population inM. truncatula, we identified four mutant lines, namedwrinkled flower and leaf(wfl) for their phenotype. The phenotype of thewflmutants is caused by aTnt1insertion inMedtr3g105550, encoding 3-ketoacyl-CoA synthase (KCS), which functions as a rate-limiting enzyme in very long chain fatty acid elongation. Reverse transcription-quantitative PCR showed thatWFLwas broadly expressed in aerial organs of the wild type, such as leaves, floral organs, and the shoot apical meristem, but was expressed at lower levels in roots. In situ hybridization showed a similar expression pattern, mainly detecting theWFLtranscript in epidermal cells of the shoot apical meristem, leaf primordia, and floral organs. Thewflmutant leaves showed sparser epicuticular wax crystals on the surface and increased water permeability compared with wild type. Further analysis showed that inwflleaves, the percentage of C20:0, C22:0, and C24:0 fatty acids was significantly increased, the amount of cuticular wax was markedly reduced, and wax constituents were altered compared to the wild type. The reduced formation of cuticular wax and wax composition changes on the leaf surface might lead to the developmental defects observed in thewflmutants. These findings suggest that WFL plays a key role in cuticular wax formation and in the late stage of leaf and flower development inM. truncatula.
关键词	KCS Very long chain fatty acid Cuticular wax Organ fusion Medicago truncatula FATTY-ACID ELONGASE BETA-KETOACYL-COENZYME ARABIDOPSIS-THALIANA CONDENSING ENZYME COA SYNTHASE COTTON FIBER GENE BIOSYNTHESIS EXPRESSION ENCODES
DOI	10.1007/s11103-020-01080-1
WOS记录号	WOS:000576624100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73756
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, CAS Ctr Excellence Mol Plant Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650204, Yunnan, Peoples R China 3.Southwest Forestry Univ, Key Lab Forest Resource Conservat & Utilizat Sout, Minist Educ, Kunming 650224, Yunnan, Peoples R China 4.Noble Res Inst LLC, 2510 Sam Noble Pkwy, Ardmore, OK 73401 USA 5.Oklahoma State Univ, Inst Agr Biosci, Dept Plant & Soil Sci, 3210 Sam Noble Pkwy, Ardmore, OK 73401 USA
推荐引用方式 GB/T 7714	Yang,Tianquan,Li,Youhan,Liu,Yu,et al. The 3-ketoacyl-CoA synthase WFL is involved in lateral organ development and cuticular wax synthesis inMedicago truncatula[J]. PLANT MOLECULAR BIOLOGY,2021,105(1-2):193-204.
APA	Yang,Tianquan.,Li,Youhan.,Liu,Yu.,He,Liangliang.,Liu,Aizhong.,...&Chen,Jianghua.(2021).The 3-ketoacyl-CoA synthase WFL is involved in lateral organ development and cuticular wax synthesis inMedicago truncatula.PLANT MOLECULAR BIOLOGY,105(1-2),193-204.
MLA	Yang,Tianquan,et al."The 3-ketoacyl-CoA synthase WFL is involved in lateral organ development and cuticular wax synthesis inMedicago truncatula".PLANT MOLECULAR BIOLOGY 105.1-2(2021):193-204.