过表达CGLD27LIKE影响拟南芥类胡萝卜素的合成

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关键词拟南芥；类胡萝卜素;CGLD27LIKE;合成中图分类号Q945文献标识码A文章编号 0517-6611（2025）20-0007-08doi：10.3969/j.issn.0517-6611.2025.20.002

AbstractObetie]Toivestigate teevolutioaryoriginubellarlcalization，ndfuctioaloleoftheG7LIKE（AG184） proteinarotdsibdoisslisgohdotopoetioti aryoriginandpygeneticdistributionofCGD7KEwereanalyedusingbioiformaticstols.TransgenicplantsoverexpressingCG27 LIKEweregeneratedthoughlecularologytchqusExpressonlevelsofgensivoledintecaroteoidiosytesispathwaandthe accumulationofotosyticigntsinrageniclnseeuantitatielyessd.ResultGEisofaobctealin andisighlysedsotothicsbellalocalatiaalyisaledisoostlOvere CGLD27LKsuldotcltigdacsisduciltoti cantlydecreasdbiotidepdntacteristtasacebaeddrordoitll leviatedundercotiuuslightexposureCRanalysisdmostratedow-reglatioofeyate-liingzeencodinggessuchs （204号 PSY and its downstream gene LCYb ， whereas PDS and ZDS were significantly up-regulated，indicating the presence of a feedback regulatory mechanismincaroteoidbiosythesisConclusion]Asanevolutioarilyoservedchloroplast-ocaliedprotein，CGD7LKEaacts negativeregatfrotediossisoulatiexpsiIseepresiosptsoopoteihadi plant development，thereby providing a novel genetic target for improving crop stress tolerance and nutritional quality.

Key Words Arabidopsis thaliana ; Carotenoid;CGLD27 LIKE;Synthesis

类胡萝卜素是一种 C40 的萜类化合物，广泛存在于光合细菌、某些古细菌和真菌、藻类、植物和动物中的一类脂溶性化合物，由异戊二烯单元和共轭双键组成的亲脂性色素[1]类胡萝卜素不仅有利于植物花粉和种子的传播[2]，还能够提高光合效率、具有防御光氧化损伤、抗氧化等功能[3]。（剩余13782字）