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通过人工脱适应处理诱导的跨物种杂交葡萄的复合芽中的血管发育

Jun Kasuga¹, Ayumi Kawase¹, Rika Kamigaki¹

¹Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan.

Physiologia plantarum

|May 30, 2023

概括

葡萄的复合芽在葡萄中发芽.

科学领域:

植物生理学植物生理学
木制解剖学木制解剖学
寒冷硬度寒冷硬度硬度

背景情况:

葡萄的复合芽通过超冷却过冬,这种过程可能会被叶形成破坏.
之前对葡萄酒 (Vitis vinifera"Chardonnay") 的研究表明,在脱适应过程中发生体血管分化.
耐寒的维蒂斯物种可能表现出不同的树发育模式.

研究的目的:

为了研究寒冷耐受性跨物种混合物"Yamasachi"在去适应过程中的复合芽中体血管的形成.
为了比较"Yamasachi"的季节性船舶发展与Vitis vinifera的季节性船舶发展.

主要方法:

"山崎"的复合芽是在冬季中旬收获的.
在20°C的温度下进行了人工脱习处理.
分析了花芽的容器元素特征和树连续性.

主要成果:

在去适应之前",Yamasachi"的芽表现出高超冷容量 (-30°C) 和具有容器元素特征 (加厚,化) 的基底细胞,但缺乏液压功能.
树干和芽之间的西勒姆连续性在去适应的第7天被确立.
在"Yamasachi"的血管形成不同于V. vinifera,表明适应较冷的气候.

结论:

与V. vinifera相比",Yamasachi"杂交物在复合芽中表现出季节性树脂发育的独特模式.
这种独特的发展可能会促进短生长季节的地区的快速增长.
了解芽菌的形成对于葡萄的耐寒性研究至关重要.

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