Endogenous Inhibitors and Germination of Beta vulgaris
Endogenous Inhibitors and Germination of Beta vulgaris
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内源抑制剂与甜菜的萌发
DOI：
10.1093/jxb/35.7.994
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发表时间：
1984
影响因子：
6.9
通讯作者：
W. J. Whittington
中科院分区：
文献类型：
--
作者：
P. Morris;D. Grierson;W. J. Whittington
研究了内源发芽抑制剂在摩擦三倍体单性体甜菜果实中的作用。实验证据表明，发芽抑制剂对摩擦果实的发芽没有重要的抑制作用。已知存在于甜菜提取物中的推定抑制化合物被发现对发芽几乎没有影响。浸出水溶性化合物的措施也对发芽影响不大。浓缩果实提取物通过其渗透势抑制甜菜种子的萌发，这与果实提取物的含盐量有关。然而，盐含量与果系的原始萌发呈正相关。这种关系可能对果实成熟度和随后收获时的发芽行为的评估有重要影响。摩擦果实发芽率低的原因不在于果皮中存在抑制化合物，而在于果实的某些其他特性。
The nature and importance of endogenous germination inhibitors in rubbed triploid monogerm sugar beet fruits were studied. Experimental evidence suggests that germination inhibitors do not play an important role in the prevention of germination of rubbed fruits. Putative inhibitory compounds known to occur in sugar beet extracts were found to have little effect on germination. Measures to leach out water soluble compounds also had little effect on germination. Concentrated fruit extracts were found to inhibit the germination of sugar beet seeds by virtue of their osmotic potentials, and this was related to the salt content of the fruit extracts. However, a positive relationship was found between salt content and the original germination of the fruit lines. This relationship could have important consequences for assessment of fruit maturity and subsequent germination behaviour at harvest. The causes of poor germination in rubbed fruit lie not in the presence of inhibitory compounds in the fruit coat but in some other property of the fruit.