CALCIUM CONTENT OF FRUITS AND STORAGE TISSUES IN RELATION TO THE MODE OF WATER SUPPLY

CALCIUM CONTENT OF FRUITS AND STORAGE TISSUES IN RELATION TO THE MODE OF WATER SUPPLY
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水果和贮藏组织的钙含量与供水方式的关系

DOI:
10.1111/j.1438-8677.1966.tb00240.x
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发表时间:
1966
期刊:
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影响因子:
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通讯作者:
L. Wiersum
L. Wiersum
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作者:
L. Wiersum

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通过实验研究了钙在植株不同部位的不均匀分布过程。果实和贮藏组织的钙含量通常极低,因此可能发生局部病症。 45 Ca的初生分布与水分沿木质部导管的沿着分布密切相关。在快速生长期间,没有或几乎没有任何水分和45 Ca进入番茄果实、苹果、马铃薯或蚕豆种子。 这一现象可以用韧皮部物质流运输的存在来解释。这种质量流可以提供必要的水沿着大多数其他营养素,但不携带任何有价值的量的Ca。 在进一步的一系列实验中,它表明,有利于优势的筛管运输的条件下,导致番茄果实的钙含量降低,增加开花端腐烂。有利于辅助供水通过woodvessels的条件下,减少疾病的发病率和K/Ca比的水果。
Experiments were performed to elucidate the process of uneven distribution of Ca between different parts of the plant. The Ca-contents of fruits and storage tissues are usually extremely low, and as a result local disorders may occur. The primary distribution of 45Ca was found to be closely linked to the distribution of water along the xylem vessels. During the period of fast growth no or hardly any water and 45Ca entered tomato fruits, apples, potatoes or seeds of the broad bean. This phenomenon is explained by accepting the existence of a mass flow transport in the phloem. This mass flow can supply the necessary water along with most other nutrients, but does not carry any worthwhile amount of Ca. In a further series of experiments it is demonstrated that conditions conducive to predominance of the sieve tube transport result in a lowered Ca-content of tomato fruits and increased blossom-end rot. Conditions favouring an auxilliary supply of water via the woodvessels reduce the disease incidence and the K/Ca ratio of the fruits.
Yoshida, S.:“培养绿豆(Vigna radiata[L.] Wilczek)细胞中低温诱导的酸中毒。”
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