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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Changes in the properties of calcium-carbon inclusions during leaf development and their possible relationship with leaf functional maturation in three inclusion-bearing species
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Changes in the properties of calcium-carbon inclusions during leaf development and their possible relationship with leaf functional maturation in three inclusion-bearing species

机译：叶片发育过程中钙 - 碳含量的性质及其在三种包涵物种中的叶功能成熟的可能关系

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摘要

In many plant species, carbon-calcium inclusion (calcium oxalate crystals or cystoliths containing calcium carbonate) formation is a fundamental part of their physiology even necessary for normal growth and development. Despite the long-standing studies on carbon-calcium inclusions, the alterations in their properties during leaf development and their possible association with the maturation of the photosynthetic machinery have not been previously examined. In order to acquire more insights into this subject, we examined three of the most common species bearing abundant inclusions of different types, i.e., Amaranthus hybridus, Vitis vinifera, and Parietaria judaica. Results of our study showed that, irrespective of species and type of inclusion, similar patterns in the alterations of their properties are observed during leaf maturation, except for some differences in cell differentiation and distribution between raphides and druses in Vitis vinifera. As expected, inclusion formation has taken place at very early developmental stages and maximum density was observed in very young leaves. Inclusion properties are changing in a coordinated way with leaf area and these modifications are compatible with the concept that each idioblast or lithocyst services a finite number/area of adjacent cells. This tight coordination is also evident at the whole leaf level. Moreover, we observed an association of the properties of carbon-calcium inclusions and gas exchange, suggesting a possible implication of these structures in photosynthesis.
机译：在许多植物种类中，碳钙含有（含有碳酸钙的含钙晶体或含钙）形成的基本部分甚至是正常生长和发育所必需的。尽管对碳钙夹杂物的长期研究，但先前尚未检查叶片发育期间及其与光合机械成熟的可能关联的性质的改变。为了获得对该主题的更多洞察力，我们检查了三种最常见的种类含有不同类型的含量，即Amaranthus Hybridus，葡萄毒性和Parietaria judaica。我们的研究结果表明，无论物种和含量的类型如何，在叶成熟期间观察到它们性质的改变的类似模式，除了在血管血管和葡萄杆菌之间的细胞分化和分布的一些差异。正如预期的那样，在非常早期的发育阶段发生夹杂物形成，在非常年轻的叶子中观察到最大密度。包含属性以协调方式与叶面积改变，这些修改与每个职业素或锂电图服务的概念兼容相邻单元的有限数/区域。这种紧张的协调在整个叶子层面也很明显。此外，我们观察了碳钙夹杂物和气体交换的性质的关联，表明这些结构在光合作用中可能含义。

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