缺磷 meaning in Chinese
phosphate depletion
Examples
- Chapter 11 phosphorus nutrition and p fertilizers . p uptake , transportation and assimilation , p physiological function and its deficient symptoms . p forms in soil and their availability ; p transformation in soil
第十一章植物磷素营养与磷肥主要讲授磷素的吸收、运输与同化；磷素的生理功能与营养作用；植物缺磷症状。土壤中磷的形态及其有效性；磷素在土壤中的转化。 - The am fungus could obtain adequate carbon resources for itself , thus ensuring normal growth and metabolic activit y owing to the efflux of carbohydrate from the plasma membrane of the host root cortical cells to the interface of the symbiosis . thirdly , the structure and composition of the root cortex cellular plasma membrane kept good integrity and the leakage of carbohydrate maintained at low level when the plant obtained enough p and metabolizes normally . although enough carbohydrate was synthesized by plant , the am fungi could not obtain enough energy , resulting in inhibition of growth of the extraradical hyphae and decreased metabolic activity of the am fungi
由此，我们认为植物磷营养状况调控菌根真菌生长和代谢活性的机制是：当植物处于严重缺磷胁迫时，不能合成足够的碳水化合物供给自身生长的需要，也不能向真菌提供额外的碳水化合物，因而菌根真菌生长受阻，代谢活性较低；当植物中度缺磷时，根皮层细胞质膜的组成和结构不完整，通透性大，碳水化合物通过质膜向外的渗漏量大，菌根真菌因而获得充足的碳源，保证真菌正常的生长和旺盛的代谢；当植物获得足够的磷而使体内磷营养代谢正常时，其细胞质膜组成和结构完整，碳水化合物的渗漏量保持在较低的水平，尽管此时植物合成了足够的碳水化合物，但菌根真菌仍不能获得足够的能量，导致真菌生长受阻和代谢活性降低。 - The author finded out that the rice in the mediums with phosphorus and phosphate rocks can grow well , the quantity of the algea and the phosphorus in the mediums increase . on the contrary , in other mediums the rice appear to be short of phosphate
其中，全磷培养基和含磷矿石粉的无磷培养基中杂交水稻正常生长，沙角衣藻生物量较实验前有所增长；由于实验梯队磷矿石的转化作用，使培养基有效磷浓度均较实验前也有所增长；而其他实验组水稻均出现不同程度的缺磷表征。