Abscisic acid affects ethylene metabolism and carotenoid biosynthesis in Japanese apricot (Prunus mume Sieb. et Zucc.)

Q1 Agricultural and Biological Sciences Agri Gene Pub Date : 2019-06-01 DOI:10.1016/j.aggene.2019.100083

Shanshan Wang , Hong Lin , Takanori Saito , Katsuya Ohkawa , Hitoshi Ohara , Haifeng Jia , Satoru Kondo

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引用次数: 2

Abstract

The Japanese apricot (Prunus mume Sieb. et Zucc.) is a typical climacteric fruit which loses commercial value during processing when the surface color turns yellow. In our study, treatment with nordihydroguaiaretic acid (NDGA), an abscisic acid (ABA) synthesis inhibitor, delayed the increase of ethylene and decrease of firmness towards ripening, and retarded the degradation of chlorophyll and the accumulation of carotenoids including β-carotene and lycopene through the expression of PmCHL (coding for chlorophyllase), PmGGPPS (coding for geranylgeranyl diphosphate synthase), PmPDS (coding for phytoene desaturase), PmPSY (coding for phytoene synthases), and PmLCYB (coding for lycopene beta-cyclase). NDGA inhibited the ABA synthesis through PmNCED1 and these results show that ABA may affect the ripening of the Japanese apricot by influencing ethylene production and the expression of PmACS (coding for ACC synthase), PmACO (ACC oxidase) and the ethylene-responsive gene PmERF (ethylene-responsive transcription factor), and thus that ethylene and ABA may interact during fruit ripening in climacteric fruit.

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脱落酸影响杏(Prunus mume Sieb)的乙烯代谢和类胡萝卜素生物合成。调查)。

日本杏(Prunus mume Sieb)。西瓜(et Zucc.)是典型的更年期水果，在加工过程中表面颜色变黄，失去商业价值。在我们的研究中，脱落酸(ABA)合成抑制剂去甲二氢愈木酸(NDGA)通过表达PmCHL(编码叶绿素酶)、PmGGPPS(编码香叶二磷酸合酶)、PmPDS(编码植物烯去饱和酶)、PmPSY(编码植物烯合酶)，延缓了乙烯的增加和成熟强度的降低，延缓了叶绿素的降解和β-胡萝卜素和番茄红素等类胡萝卜素的积累。和PmLCYB(编码番茄红素β -环化酶)。NDGA通过PmNCED1抑制ABA的合成，说明ABA可能通过影响乙烯的产生和编码ACC合成酶的PmACS、ACC氧化酶的PmACO以及乙烯应答基因PmERF的表达来影响日本杏的成熟，乙烯和ABA可能在更年期果实成熟过程中相互作用。

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Agri Gene Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)

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期刊介绍： Agri Gene publishes papers that focus on the regulation, expression, function and evolution of genes in crop plants, farm animals, and agriculturally important insects and microorganisms. Agri Gene strives to be a diverse journal and topics in multiple fields will be considered for publication so long as their main focus is on agriculturally important organisms (plants, animals, insects, or microorganisms). Although not limited to the following, some examples of potential topics include: Gene discovery and characterization. Genetic markers to guide traditional breeding. Genetic effects of transposable elements. Evolutionary genetics, molecular evolution, population genetics, and phylogenetics. Profiling of gene expression and genetic variation. Biotechnology and crop or livestock improvement. Genetic improvement of biological control microorganisms. Genetic control of secondary metabolic pathways and metabolic enzymes of crop pathogens. Transcription analysis of beneficial or pest insect developmental stages Agri Gene encourages submission of novel manuscripts that present a reasonable level of analysis, functional relevance and/or mechanistic insight. Agri Gene also welcomes papers that have predominantly a descriptive component but improve the essential basis of knowledge for subsequent functional studies, or which provide important confirmation of recently published discoveries provided that the information is new.

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