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首页> 外文期刊>Israel Journal of Plant Sciences >Elicitation effects of chitin oligomers and chitosan sprayed on the leaves of cucumber (Cucumis sativus) and bean (Phaseolus vulgaris) plants
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Elicitation effects of chitin oligomers and chitosan sprayed on the leaves of cucumber (Cucumis sativus) and bean (Phaseolus vulgaris) plants

机译：黄瓜（Cucumis sativus）和豆（Phaseolus vulgaris）植物叶片上喷洒的几丁质低聚物和壳聚糖的诱导作用

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摘要

The ability of chitin oligomers and chitosan to act as elicitors of the defense system of cucumber and bean plants was examined. Induction of chitinase, peroxidase, beta-1,3-glucanase, and chitosanase was examined by spraying the plant leaves with chitin and chitosan oligomers or with chitosan polymers having a 5 or 30% degree of acetylation (DA). Chitin oligomers and chitosan induced the activity of these enzymes in cucumber and bean plants; chitin oligomers induced high peroxidase activity in cucumber, beta-1,3-glucanase activity in bean, and chitosanase activity in both cucumber and bean plants. Chitosan significantly induced the activities of chitosanase and chitinase in both cucumber and bean plants. Chitosan oligomers did not induce any enzymatic activity in cucumber or bean plants. Increasing the DA of chitosan from 5 to 30% appreciably increased the elicitation of chitinase, peroxidase, and beta-1,3-glucanase activities in cucumber and bean plants. It is suggested that the elicitation of the 2-amino-2-deoxy-beta-D-glucopyranose oligomers or polymers is controlled by the DA.
机译：研究了几丁质低聚物和壳聚糖充当黄瓜和豆类植物防御系统引发剂的能力。通过用几丁质和壳聚糖低聚物或乙酰化度为5％或30％的壳聚糖聚合物喷洒植物叶片来检查几丁质酶，过氧化物酶，β-1,3-葡聚糖酶和壳聚糖酶的诱导。几丁质低聚物和壳聚糖诱导黄瓜和豆类植物中这些酶的活性。几丁质低聚物在黄瓜中诱导高过氧化物酶活性，在豆中诱导高β-1,3-葡聚糖酶活性，在黄瓜和豆类植物中均诱导壳聚糖酶活性。壳聚糖显着诱导黄瓜和豆类植物中壳聚糖酶和几丁质酶的活性。壳聚糖低聚物在黄瓜或豆类植物中不诱导任何酶活性。将壳聚糖的DA从5％增加到30％会明显增加黄瓜和豆类植物中几丁质酶，过氧化物酶和β-1,3-葡聚糖酶活性的激发。建议由DA控制2-氨基-2-脱氧-β-D-吡喃葡萄糖低聚物或聚合物的引发。

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