The effects of host defence elicitors on betacyanin accumulation in Amaranthus mangostanus seedlings
文献类型: 外文期刊
第一作者: Cao, Shifeng
作者: Cao, Shifeng;Harrison, Dion K.;Joyce, Daryl C.;Cao, Shifeng;Liu, Ting;Jiang, Yueming;He, Shenggen;Joyce, Daryl C.
作者机构:
关键词: amaranthus mangostanus seedlings;betacyanin;ethylene;H_2O_2;methyl jasmonate;salicylic acid
期刊名称:FOOD CHEMISTRY ( 影响因子:7.514; 五年影响因子:7.516 )
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收录情况: SCI
摘要: The effect of elicitors associated with host defence on betacyanin accumulation in Amaranthus mangostanus seedlings was investigated. Under the conditions of the experiments, betacyanin accumulation was generally enhanced by light. Methyl jasmonate (MeJA) treatment increased betacyanin synthesis in a concentration-dependent response. Seedlings treated with ethylene as 5 mM Ethephon also had elevated levels of betacyanin. In contrast, salicylic acid (SA) and H_2O_2 treatments had no influence on betacyanin contents in light or dark. Combined MeJA with Ethephon or H_2O_2 had an additive effect on betacyanin accumulation in dark-grown seedlings. However, a decline was recorded in light-grown seedlings. Moreover, an antagonistic effect on betacyanin synthesis was found when MeJA and SA were added simultaneously. Our results indicate that betacyanin content in A mangostanus seedlings can be upregulated by MeJA and ethylene. Both additive and antagonistic effects in regulating betacyanin synthesis in A mangostanus seedlings were observed between MeJA and other elicitors.
分类号: TS2
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