Influence of ectomycorrhizal infection on the rhizosphere pH around roots of maritime pine (Pinus pinaster Soland in Ait.)
Influence of ectomycorrhizal infection on the rhizosphere pH around roots of maritime pine (Pinus pinaster Soland in Ait.)
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DOI：
10.1111/j.1469-8137.1995.tb01824.x
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发表时间：
1995-05
期刊：
影响因子：
9.4
通讯作者：
L. Rigou;E. Mignard;C. Plassard;J. Arvieu;J. Rémy
中科院分区：
文献类型：
--
作者：
L. Rigou;E. Mignard;C. Plassard;J. Arvieu;J. Rémy
本研究通过测定接种菌根和未接种菌根的松树（PinuspinasterxSuilluscollinitus）根际pH值和根释放的质子量，研究了菌根感染对根离子交换的影响。接种的效果进行了测量周围的个别根，并作为一个整体的根系上的效果进行了比较，根的异质性，从而被考虑到在结构方面和功能方面。接种显著增强了根在中性pH介质中释放质子的能力，但反应强度随根的参与程度而变化。这种增强可能用于提高在土壤的特定化学条件下不易溶解的化合物的生物利用度。
summary This study examined the influence of mycorrhizal infection on ionic exchanges by roots, by measuring rhizosphere pH and the quantities of protons released by roots of mycorrhizal and non-mycorrhizal pine (Pinus pinaster × Suillus collinitus). The effect of inoculation was measured around individual roots and compared with the effect on the root system as a whole, with root heterogeneity thus being taken into account in structural terms and in terms of functioning. Inoculation enhanced significantly the capacity of roots to release protons in a medium with a neutral pH, but the strength of reaction varied with the part of the root involved. This enhancement could possibly be used to improve the bioavailability of compounds not readily soluble in particular chemical conditions of the soil.