典型文献
High temperature enhances anthocyanin coloration in Asiatic hybrid lily flowers via upregulation of the MYB12 positive regulator
文献摘要：
Although high atmospheric temperatures suppress anthocyanin accumulation in most plant species,we show that high temperatures accel-erate anthocyanin pigmentation in flower tepals of Asiatic hybrid lilies(Lilium spp.).After incubation at high temperatures(35℃)for two days,anthocyanin color became deeper in the most of tepal parts of two Asiatic hybrid lily cultivars,although the basal parts of'Montreux'tepals and top parts of'Toronto'outer tepals were whitened.Environmental stimuli often affect the expression of R2R3-MYB positive regulators that control anthocyanin biosynthesis.Although their expression is often suppressed by hot temperatures in other species,the expression of lily MYB12 in tepals was upregulated by high temperatures.Micro RNA828(miR828),which suppresses the action of MYB12 post-transcriptionally,exhibited reduced accumulation levels under high temperature,indicating that miR828 regulation is involved in MYB12 upregulation.In ad-dition,transcription levels of MYB12,estimated by unspliced MYB12 transcript accumulation,were also activated by high temperatures.Thus,both suppressed miR828 accumulation and increased MYB12 transcription are likely to be involved in MYB12 activation at high temperatures.In the whitened basal parts of'Montreux'tepals at 35℃,expression of bHLH2 was severely suppressed while that of MYB12 was not affected.The present results demonstrate that plants display diverse responses to hot climatic conditions and shed new light on anthocyanin regulation under various environmental conditions.
文献关键词：
中图分类号：
作者姓名：
Masumi Yamagishi
作者机构：
Research Faculty of Agriculture,Hokkaido University,N9W9,Kita-ku,Sapporo 060-8589,Japan
文献出处：
引用格式：
[1]Masumi Yamagishi-.High temperature enhances anthocyanin coloration in Asiatic hybrid lily flowers via upregulation of the MYB12 positive regulator)[J].园艺学报（英文版）,2022(06):769-776
A类：
MYB12,tepals,lilies,tepal,Montreux,whitened,RNA828,miR828,unspliced,bHLH2
B类：
High,enhances,anthocyanin,coloration,Asiatic,hybrid,lily,flowers,via,upregulation,positive,Although,high,atmospheric,temperatures,accumulation,most,species,show,that,accel,erate,pigmentation,Lilium,spp,After,incubation,two,days,became,deeper,parts,cultivars,although,basal,top,Toronto,outer,were,Environmental,stimuli,often,expression,R2R3,regulators,control,biosynthesis,their,suppressed,by,hot,other,was,upregulated,Micro,which,suppresses,action,post,transcriptionally,exhibited,reduced,levels,under,indicating,involved,In,ad,estimated,also,activated,Thus,both,increased,are,likely,activation,severely,while,not,affected,present,results,demonstrate,plants,display,diverse,responses,climatic,conditions,shed,new,light,various,environmental
AB值：
0.398508
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