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首页> 外文期刊>Advances in Horticultural Science >Effects of pH in the root environment on leakage of phenolic compounds and mineral ions from roots of Rosa indica major
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Effects of pH in the root environment on leakage of phenolic compounds and mineral ions from roots of Rosa indica major

机译：根系pH值对蔷薇根系酚类化合物和矿质离子泄漏的影响。

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摘要

The effects of pH on leakage of phenolic substances and ions from roots of R. indica major [R. chinensis cv. Major] (a rose rootstock commonly used in the Mediterranean region) cuttings propagated in a nutrient-less aeroponic fogging system (using rockwool) were examined by incubating root segments or intact roots in solutions of biological MOPSO+BTP buffer with pH 6.2, 7.6 or in water, following exposure to the buffers. Leakage of phenols or K+ into the buffer was not affected by the pH of the buffer. However, the leakage into water following incubation in buffer of pH 7.6 was significantly higher than that following incubation at pH 6.2. In contrast to K+, the leakage of Na+ into the buffer was greatly affected by the buffer pH, whereas leakageinto water was not affected by it. The direct effects of high pH on root function, in addition to the indirect effects on the availability of mineral ions, are discussed.
机译：pH对major稻根系中酚类物质和离子泄漏的影响[R.中国简历主要]（一种在地中海地区常用的玫瑰砧木）在无营养的气雾系统（使用岩棉）中繁殖的插条通过在pH值为6.2、7.6或7.0的MOPSO + BTP生物缓冲液中孵育根段或完整的根进行检查。暴露于缓冲液中后放入水中。苯酚或K +泄漏到缓冲液中不受缓冲液pH值的影响。但是，在pH 7.6的缓冲液中温育后向水中的泄漏明显高于在pH 6.2的温育后向水中的泄漏。与K +相比，Na +进入缓冲液的渗漏受到缓冲液pH值的很大影响，而渗入水中则不受它的影响。除了对矿物质离子利用率的间接影响外，还讨论了高pH对根系功能的直接影响。

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