Sex‐specific strategies of phosphorus (P) acquisition in Populus cathayana as affected by soil P availability and distribution

• DOI: 10.1111/nph.16170
• Publication Date: 2019-09-05T14:21:55Z
• Authors: Zhichao Xia; Yue He; Lei Yu; Rubing Lv; Helena Korpelainen; Chunyang Li
• Keywords: Root system

Soil phosphorus (P) availability and its distribution influence plant growth productivity, but how they affect the dynamics sex-specific P acquisition strategies of dioecious species is poorly understood. In this study, impact soil on Populus cathayana was characterized. P. males females were grown under three levels supply, with homogeneous or heterogeneous distribution. Females had a greater total root length, specific length (SRL), biomass foliar concentration high supply. Under deficiency, smaller system than exudation acid phosphatase, higher colonization rate arbuscular mycorrhizal hyphal biomass, suggesting better capacity to mine stronger association fungi forage Heterogeneous enhanced density (RLD) in females. Female proliferation P-rich patches related increased assimilation. Localized application for increasing did not enhance accumulation morphological plasticity roots males, it raised biomass. The findings herein indicate that relate morphology, symbioses, may contribute resource utilization patterns niche segregation.