Chilling Stress Upregulates α-Linolenic Acid-Oxidation Pathway and Induces Volatiles of C6 and C9 Aldehydes in Mango Fruit

被引:39
作者
Sivankalyani, Velu [1 ]
Maoz, Itay [1 ,2 ]
Feygenberg, Oleg [1 ]
Maurer, Dalia [1 ]
Alkan, Noam [1 ]
机构
[1] Agr Res Org, Volcani Ctr, Dept Postharvest Sci Fresh Produce, IL-50250 Bet Dagan, Israel
[2] Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, IL-76100 Rehovot, Israel
关键词
mango fruit; chilling injuries; volatiles; alpha-linolenic acid-oxidation pathway; oxylipins; KENSINGTON-PRIDE MANGO; ALLENE OXIDE SYNTHASE; RNA-SEQ DATA; METHYL JASMONATE; PHOSPHOLIPASE-D; HYDROPEROXIDE LYASE; OXYLIPIN METABOLISM; REFERENCE GENOME; GENE-EXPRESSION; AROMA COMPOUNDS;
D O I
10.1021/acs.jafc.6b04355
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Mango-fruit storage period and shelf life are prolonged by cold storage. However, chilling temperature induces physiological and molecular changes, compromising fruit quality. In our previous transcriptomic study of mango fruit, cold storage at suboptimal temperature (5 degrees C) activated the a-linolenic acid metabolic pathway. To evaluate changes in fruit quality during chilling, we analyzed mango "Keitt" fruit peel volatiles. GC-MS analysis revealed significant modulations in fruit volatiles during storage at suboptimal temperature. Fewer changes were seen in response to the time of storage. The mango volatiles related to aroma, such as delta-3-carene, (Z)-beta-ocimene, and terpinolene, were downregulated during the storage at suboptimal temperature. In contrast, C-6 and C-9 aldehydes and alcohols-alpha-linolenic acid derivatives 1-hexanal, (Z)-3-hexenal, (Z)-3-hexenol, (E)-2-hexenal, and nonanal-were elevated during suboptimal-temperature storage, before chilling-injury symptoms appeared. Detection of those molecules before chilling symptoms could lead to a new agro-technology to avoid chilling injuries and maintain fruit quality during cold storage at the lowest possible temperature.
引用
收藏
页码:632 / 638
页数:7
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