期刊
SYMBIOSIS
卷 74, 期 2, 页码 131-144出版社
SPRINGER
DOI: 10.1007/s13199-017-0498-z
关键词
Ectomycorrhizal fungi; Ectomycorrhizal replacement; Pinus hartwegii; Abies religiosa; Water use efficiency
类别
资金
- Managing Ecosystems and Human Development in the Magdalena River Basin [SEDEI-PTID-02]
- Programa de Apoyo para la Investigacion e Innovacion Tecnologica de la Universidad Nacional Autonoma de Mexico [PAPIIT-UNAM IN-200906]
- Mexican Council of Science and Technology (CONACyT)
Few studies have focused on analyzing the effect of native inoculated ectomycorrhizal (ECM) fungal strains on seedlings under field conditions in temperate forests. However, it is crucial to verify that the positive effects of ECM under nursery conditions also occur in the field, favoring their performance. We evaluated the short-term effect of ECM on three-year-old seedlings of Pinus hartwegii and Abies religiosa in central Mexico by subjecting them to four treatments: inoculation with Inocybe splendens, inoculation with Suillus brevipes (both native strains), inoculation with forest soil, and non-inoculated plants. Percentage of ECM colonization, plant growth (shoot height and stem diameter), and physiological (osmotic potential, stomatal conductance, CO2 assimilation and water use efficiency) responses were evaluated. We found that these two ECM species were partial (P. hartwegii) or totally (A. religiosa) replaced after one and a half years in the field. P. hartwegii seedlings increased their water use efficiency during the dry season, but in A. religiosa seedlings, a clear strategy for avoiding water stress was not detected. This ECM replacement had a negative effect on the physiological performance Of A. religiosa. Our results emphasize the importance of selecting compatible fungal-host species combinations for nursery inoculation and of using sources of inoculum adapted to the environmental conditions of the transplant site, ensuring root colonization prior to field transplanting to minimize seedling mortality due to water stress.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据