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施要强,田静,王振华,刘翠华,余乔明,程运江,徐娟.ABA处理对不同柑橘种质汁胞中挥发性物质的影响[J].华中农业大学学报,2020,39(1):10-17
ABA处理对不同柑橘种质汁胞中挥发性物质的影响
Volatile profile changes in ABA-treated fruit juice sacs of various citrus genotypes
  
DOI:
中文关键词:  脱落酸(ABA)  柑橘  挥发性物质谱  倍半萜类  单萜类  香气品质  果实风味
英文关键词:abscisic acid (ABA)  citrus  volatile profile  sesquiterpenoids  monoterpenoids  aroma quality  fruit flavor
基金项目:国家重点研发计划项目(2018YFD1000200); 国家自然科学基金项目(31272122)
作者单位E-mail
施要强 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070 shiqiang0517@gmail.com 
田静 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070  
王振华 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070  
刘翠华 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070  
余乔明 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070  
程运江 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070  
徐娟 园艺植物生物学教育部重点实验室/华中农业大学园艺林学学院武汉 430070 xujuan@mail.hzau.edu.cn 
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中文摘要:
      为揭示柑橘汁胞挥发性物质代谢谱与ABA含量变化的关系,采用100 μmol/L ABA处理 3对有籽/无籽宽皮柑橘、柚和甜橙共6个种质的柑橘果实的汁胞并进行离体培养,室温培养10 d后进行GC-MS分析。结果显示:ABA处理对华农红柚汁胞中倍半萜类物质代谢的影响具有双重效应,δ-榄香烯、β-荜澄茄油烯、β-榄香烯、β-衣兰烯的含量显著高于对照,而榄香烯异构体和石竹烯的含量显著降低;纽荷尔脐橙处理汁胞中β-可巴烯和表荜澄茄醇等倍半萜烯及其醇化物含量显著降低至低于检测限;ABA处理对国庆1号温州蜜柑汁胞中单萜和倍半萜物质含量均有显著影响,新生成β-月桂烯、γ-萜品烯、吉马烯D和(2Z,5Z)-2,5-十五碳二烯-1-醇,而D-柠檬烯及β-榄香烯含量提升10倍以上;ABA处理后无籽琯溪蜜柚汁胞中的β-月桂烯和二氢-3-亚甲基-2,5-呋喃二酮显著降低;ABA处理对华农本地早和早金甜橙汁胞中的挥发性物质代谢谱没有显著影响。结果表明,ABA处理可以影响柑橘汁胞中挥发性物质尤其是倍半萜和单萜类物质的代谢谱变化,对果实香气品质的影响因种质而异。
英文摘要:
      To understand the relationship between volatile profiles and ABA content changes in citrus juice sacs,the juice sacs of three pairs of seed/seedless loose-skin mandarin,pummelo and sweet orange were separated,cultured in vitro on medium and treated with 100 μmol/L ABA.After being incubated for 10 d at room temperature,the volatile profiles in the juice sacs were thus detected via gas chromatograph-mass spectrometry.The results showed that ABA treatment had significant dual effects on the contents of monoterpenoids and sesquiterpenoids in the juice sacs of Huanong Red pummelo:δ-elemene,β-cubebene,β-ylangene and β-elemene were significantly higher than those of the control,while the elemene isomer and caryophyllene were significantly reduced; while the contents of sesquiterpenoids such as β-copaene and epicubebol were reduced to non-detectable levels in Newhall navel orange. After ABA treatment,four substances (β-myrcene,γ-terpinene,germacrene D and (2Z,5Z)-2,5-pentadecadiene-1-ol) were newly detected in Guoqing No.1 Satsuma mandarin,whilst D-limonene and β-elemene increased by 10 folds; the contents of β-myrcene and dihydro-3-methylene-2,5-furandione were significantly reduced in seedless Guanximiyou pummelo in ABA treated juice sacs.ABA treatment had no significant effect on volatile profiles in juice sacs of Huanongbendizao mandarin and Early-Gold sweet orange.Collectively,it indicates that ABA treatment did affect the volatile profile in citrus,especially monoterpenoids and sesquiterpenoids,the effect on the aroma quality of the fruit varies with germplasm,but no clear correlation with the existence of seeds or not.
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