Details

Autor(en) / Beteiligte

• Guo, Di
• Wong, Wai Shing
• Xu, Wen Zhao
• Sun, Fei Fei
• Qing, Dong Jin
• Li, Ning

Titel

Cis-cinnamic acid-enhanced 1 gene plays a role in regulation of Arabidopsis bolting

Ist Teil von

• Plant molecular biology, 2011-03, Vol.75 (4-5), p.481-495

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2011

Quelle

MEDLINE

Beschreibungen/Notizen

• Cis -cinnamic acid (CA) is one of many cis -phenylpropanoids found in both monocots and dicots. It is produced in planta via sunlight-mediated isomerization of trans -cinnamic acid. This pair of isomers plays a differential role in regulation of plant growth. A functional proteomics approach has been adopted to identify genes of cis / trans -CA mixture-enhanced expression. Out of 1,241 proteins identified by mass spectrometry, 32 were CA-enhanced and 13 repressed. Further analysis with the molecular biology approach revealed 2 cis -CA ( Z usammen - C A) - E nhanced genes, named ZCE1 and ZCE2 , which encode members of the major latex protein-like ( MLPL ) gene family. The transcript accumulation of both genes is positively correlated with the amount of cis -CA applied externally, ranging from 1 to 100 μM. ZCE1 transcript accumulation is enhanced largely by cis -CA and slightly by other cis -phenylpropanoids. Treatment of several well-characterized plant growth regulator perception-deficient mutants with cis -CA is able to promote ZCE1 transcript accumulation, suggestive of distinct signaling pathways regulating cis -CA response. The zce1 loss-of-function mutant produced via the RNA-interference technique produces an earlier bolting phenotype in Arabidopsis, suggesting that ZCE1 plays a role in promoting vegetative growth and delay flowering.