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首页> 美国卫生研究院文献>Physiology and Molecular Biology of Plants >Phytochemical analysis of Jatropha curcas L. during different seasons and developmental stages and seedling growth of wheat (Triticum aestivum L) as affected by extracts/leachates of Jatropha curcas L
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Phytochemical analysis of Jatropha curcas L. during different seasons and developmental stages and seedling growth of wheat (Triticum aestivum L) as affected by extracts/leachates of Jatropha curcas L

机译：麻疯树提取物/浸出液对小麦不同季节和发育阶段麻疯树的植物化学分析

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Jatropha curcas shows invasive characters and is a significant source of many phytochemicals with varying biological activities. Different plant parts of Jatropha curcas L exhibited variation in their phytochemical constituents. Leaves and ovary walls were found to contain higher contents of total phenols, tannins and phytic acid whereas free amino acids were greater in leaves. Young leaves of Jatropha show greater contents of all these metabolites. Further, plants exhibit seasonal differences as leaves collected during summer (May-June) have greater accumulation of total phenols, tannins and free amino acids however, phytic acid was more during rainy season. Leachates and extracts in their higher concentrations adversely affected the germination and growth of wheat seedlings however, lower concentrations were more or less stimulatory. These treatments not only decreased the length, fresh and dry weight of seedlings but also affected the chlorophyll contents and activity of enzymes such as nitrate reductase, aminotransferases in wheat seedlings however, the activity of superoxide dismutase and ascorbate peroxidases increased. Experiments indicate harmful allelopathic effects of Jatropha leachates /extracts on wheat seedlings, hence further experimentation and analysis is recommended before continued plantation of Jatropha particularly on fertile soils. However. Growth of Jatropha plants on saline soils and their potential for accumulating sodium, potassium and chloride are the attributes suggesting the possibility of use of Jatropha plants in improving saline soils.
机译：麻疯树具有入侵性，是许多具有不同生物活性的植物化学物质的重要来源。麻风树的不同植物部分的植物化学成分均表现出差异。发现叶片和子房壁的总酚，单宁和植酸含量较高，而叶片中的游离氨基酸含量较高。麻风树的幼叶显示所有这些代谢产物的含量更高。此外，植物表现出季节差异，因为夏季（5月至6月）收集的叶片中总酚，单宁和游离氨基酸的积累量更大，而雨季的植酸则更多。较高浓度的浸出液和提取物对小麦幼苗的发芽和生长有不利影响，但是，较低浓度的浸出液或多或少具有刺激性。这些处理不仅减少了幼苗的长短，鲜重和干重，而且影响了小麦幼苗中叶绿素含量和酶的活性，例如硝酸还原酶，氨基转移酶，但超氧化物歧化酶和抗坏血酸过氧化物酶的活性增加。实验表明麻风树浸出液/提取物对小麦幼苗具有有害的化感作用，因此建议在继续种植麻风树（特别是肥沃的土壤）之前进行进一步的试验和分析。然而。这些属性说明了麻风树属植物在盐渍土上的生长以及其积累钠，钾和氯化物的潜力，这暗示着使用麻风树属植物改良盐渍土的可能性。

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