STUDIES IN WATER-SOAKED SYMPTOM IN MELON FRUIT : CHANGES IN CELL WALL SUBSTANCES AND THE PROTECTION OF THE DISORDER.

瓜果水浸症状的研究：细胞壁物质的变化和疾病的保护。

• 批准号: 10556006
• 负责人: NISHIZAWA Takashi
• 金额: $ 0.58万
• 依托单位: YAMAGATA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10556006/
• 关键词: WATER-SOAKED SYMPTON; MELON; CELL WALL; FERMENTATION; PECTIN; NEUTRAL SUGAR; SOFTENING; 軟化; 非セルロース多糖

1. Effect of shading on the occurrence of water-soaked symptom in netted melon fruits were studied.1) Degradation of pectic substances were more apparent in 'Andesu' than in 'Luster'.2) Shading induced a rapid softening in the flesh of both cultivars. However, there was no apparent difference between cultivars in total uronic acids.3) Shading induced a rapid degradation of cell wall neutral sugars, especially galactose, glucose, and xylose. These results suggest that the early softening in netted melon fruits under shading conditions might be due to the reduction in connections of cell wall components between pectin and pectin and /or hemicellulose and pectin.2. Changes in flesh firmness as influenced by calcium spray in netted muskmelon fruit were studied.1) The softening of netted melon fruit during storage after the harvest prolonged by calcium treatment during the fruit maturation.3. 'Andesu' netted melon fruits were grown under shaded or anaerobic condition.1) Ethanolic fermentation in 'Andesu' melon flesh was increased by anaerobic nitrogen stress. The concentration of cell wall substances like uronic acids and cell wall neutral sugars, however, did not decrease by anaerobic nitrogen stress.

1.研究了遮荫对网纹甜瓜果实水浸症状发生的影响，结果表明：1）“安得苏”果实中果胶类物质的降解比“光泽”明显; 2）遮荫处理使两个品种的果肉迅速软化。3）遮荫诱导细胞壁中性糖的快速降解，尤其是半乳糖、葡萄糖和木糖的降解。这些结果表明，遮荫条件下网纹甜瓜果实的早期软化可能是由于果胶与果胶和/或半纤维素与果胶之间的细胞壁组分连接减少所致.研究了喷钙处理对网纹甜瓜果实硬度变化的影响：1）采后贮藏期间，钙处理延长了网纹甜瓜果实成熟期的软化。研究了遮荫和厌氧条件下‘安得苏’网纹甜瓜果实的乙醇发酵特性。然而，细胞壁物质如糖醛酸和细胞壁中性糖的浓度并没有因厌氧氮胁迫而降低。

项目成果

Nishizawa T., A.Ito, Y.Motomura, M.Ito and M.Togashi: "Changes in fruit quality as influenced by shading in netted melon plants (Cucumis melo L. cvs. Andesu and Luster)."J. Japan. Soc. Hort. Sci.. Vol.69(5)(in press). (2000)

Nishizawa T.、A.Ito、Y.Motomura、M.Ito 和 M.Togashi：“网状甜瓜植物 (Cucumis melo L. cvs. Andesu 和 Luster) 遮荫对果实品质的影响。”J.

Nishizawa T., A. Ito,Y.Motomura,M.Ito and M.Togashi: "Changes in fruit quality as influenced by shading in netted melon plants (Cucumis mel L. cvs. Andesu and Luster)"J. Japan. Soc. Hort. Sci.. Vol.69(5)(in press). (2000)

Nishizawa T.、A. Ito、Y.Motomura、M.Ito 和 M.Togashi：“网状甜瓜植物 (Cucumis mel L. cvs. Andesu 和 Luster) 遮荫对果实品质的影响”J。

Nishizawa T., A. Ito. Motomura, M. Ito and M. Togashi: "Changes in fruit quality as influenced by shading in netted melon plants (Cucumis melo L. cvs. Andesu and Luster)."J. Japan. Soc. Hort. Sci.. 69(5) : (in press). (2000)

西泽 T.，A. 伊藤。