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首页> 外文期刊>Israel Journal of Plant Sciences >How prickly is a prickly pear?
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How prickly is a prickly pear?

机译:刺梨有多刺?

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摘要

Prickly pear, the very spiny cactus Opuntia ficus-indica, became common and part of the landscape of the Land of Israel several centuries ago when the Levant was part of the Ottoman Empire. In traditional agriculture, hedges of these very spiny plants protected fields from the unwanted impact of the many livestock herds, and, in addition, their sweet fruit was eagerly eaten by humans. We measured the number and distribution of spines in mature, fully expanded green cladodes (the flat, rounded photosynthetic succulent branches) in order to quantify its physical defense. On average, a cladode has 121 areoles (flat lateral buds) carrying a total of 320 spines. The narrow upper margins of the cladodes occupy on average only 9.3% of the cladode area, but 43% of the spiny areoles, which are much denser there. Thus, in this Opuntia species, the strongest physical defense is formed where the tissues have a higher risk of attack by large herbivores.
机译:刺梨,多刺的仙人掌仙人掌仙人掌,在几个世纪前的黎凡特(Levant)成为奥斯曼帝国的一部分时,就很常见并且成为以色列土地景观的一部分。在传统的农业中,这些多刺植物的篱笆保护田地免受许多牲畜群的有害影响,此外,人类急切地食用它们的甜美果实。我们测量了成熟,完全扩展的绿色枝(平坦,圆形的光合肉质分支)中棘的数量和分布,以量化其物理防御能力。平均而言,一个共生体有121个小ole(扁平的侧芽),总共有320个刺。包层的狭窄上缘平均仅占包层面积的9.3%,但有43%的带刺的圆孔,那里的密度要高得多。因此,在这种仙人掌物种中,形成了最强的物理防御力,其中组织具有被大型食草动物侵袭的较高风险。

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