Differential GABA concentration gradients are present in the edible parts of greenhouse melon (Cucumis melo L.) during all four seasonal croppings. Bioscience, biotechnology, and biochemistry
Differential GABA concentration gradients are present in the edible parts of greenhouse melon (Cucumis melo L.) during all four seasonal croppings. Bioscience, biotechnology, and biochemistry
复制标题
在所有四种季节种植期间，温室甜瓜 (Cucumis melo L.) 的可食用部分都存在不同的 GABA 浓度梯度。
DOI：
10.1080/09168451.2018.1537774
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Nakajima T.
中科院分区：
文献类型：
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作者：
Toyoizumi T;Ohba S;Fujii KS;Ikegaya A;Matsuura H;Nakajima T.
食物来源的γ -氨基丁酸（GABA）具有促进健康的好处，而甜瓜含有高浓度的GABA。温室瓜（甜瓜）与其他国家的品种相比，在日本种植的“伯爵的最爱”具有相同或更多的可食用部分，然而GABA的分布和季节变化的影响尚不清楚。因此，本研究旨在评估四种季节甜瓜中GABA浓度梯度以及谷氨酸（Glu）如何影响这些梯度的建立。外果皮附近的GABA浓度在大多数季节显著低于花梗、赤道和残花柱区域。Glu和GABA浓度的变化趋势相似，在残柱附近呈显著相关。在水平剖面上，共环位点的GABA和Glu浓度无显著差异。这些数据表明，GABA和Glu浓度在甜瓜垂直剖面上差异很大，但在水平剖面上差异较小，在采样区域、地点和种植季节之间差异较大。
Food-derived gamma-aminobutyric acid (GABA) exhibits health-promoting benefits, and melon contain high GABA concentrations. Greenhouse melons (Cucumis meloL. “Earl’s Favorite”) cultivated in Japan have identical or more edible parts than cultivars in other countries, however GABA distribution and the effects of seasonal variations are unclear. Thus, the present study aimed to evaluate GABA concentration gradients in four seasonal melons and how glutamic acid (Glu) influences the establishment of these gradients. GABA concentration was significantly lower near the exocarp than in the peduncle, equator, and remnant style regions in most seasons. Glu and GABA concentrations showed similar trends and were significantly correlated near the remnant style. No significant differences in GABA and Glu concentration were detected at concyclic sites across horizontal sections. These data indicate that GABA and Glu concentration differs substantially along a vertical melon section, but less so along a horizontal section, among sampling regions, sites, and cropping season.