| 摘要: |
| 锌是光合作用中许多酶的组成成分和激活剂,也是叶绿体内蛋白质、核酸和糖代谢所必需的。缺锌导致大田作物光合速率降低的现象已有许多报道。本文报道在控制条件下缺锌对苹果苗光合作用的影响。供试植物为苹果幼苗(Malus domestica cv.M26 rootstock)。5周龄的幼苗在营 |
| 关键词: 缺锌症状 组成成分 光合速率 苹果苗 蛋白质 光合作用 叶绿体 糖代谢 |
| DOI： |
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| 基金项目: |
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| EFFECT OF ZINC DEFICIENCY ON THE PHOTOSYNTHESE OF APPLE SEEDLINGS |
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| Abstract: |
| The effect of zinc nutritional status on root exudation of lowmo- lecular-organic substances was studied in sunflower,bean,apple,cotton and tomato grown in nutrient solutions under controlled environmental conditions. Zinc deficiency increased root exudation of amino acids,sugar and phenolics in various dicotylenous plants studied.With the increase in the supply concen- trations of zinc the release of amino acids,sugar and phenolics was decreased. Root exsudates of zinc deficient sunflower and tomato plants... |
| Key words: dicotylenous plants root exudation mobilization zinc |
