摘要 Chenopodiaceae is one of the most important families in arid and saline environments. Several
studies have observed the mycorrhizal structure in Chenopodiaceae plants (i.e., chenopods), but the
mycorrhizal colonization status of chenopods in saline habitats and the influencing factors are still not
well understood. The mycorrhizal colonization of twenty chenopod species in three different saline
habitats (a saline alkaline meadow in the Songnen Plain of northeastern China, a saline desert in the
Junggar Basin of northwestern China, and a saline alpine meadow in the Tibetan Plateau of western
China) and the chenopod-associated environmental factors (including soil moisture, soil available
phosphorous (P) concentration, pH, and salt content) were analyzed. Our results showed that
approximately 60% of the studied chenopods were colonized by arbuscular mycorrhizal (AM) fungi with a
colonization percentage ranging from 5% to 33%. Structural analysis of mycorrhizal association indicated
that vesicles were quite common, while arbuscules and hyphal coils were relatively rare. In addition, a
positive correlation between mycorrhizal colonization rate and soil electrical conductivity (r=0.920,
P<0.01) and two negative correlations of mycorrhizal colonization rates with soil moisture (r= –0.818,
P<0.01) and the soil available P concentration (r= –0.876, P<0.01) confirmed that mycorrhizal
colonization rate in the roots of chenopods was environment-dependent.
Abstract：
Chenopodiaceae is one of the most important families in arid and saline environments. Several
studies have observed the mycorrhizal structure in Chenopodiaceae plants (i.e., chenopods), but the
mycorrhizal colonization status of chenopods in saline habitats and the influencing factors are still not
well understood. The mycorrhizal colonization of twenty chenopod species in three different saline
habitats (a saline alkaline meadow in the Songnen Plain of northeastern China, a saline desert in the
Junggar Basin of northwestern China, and a saline alpine meadow in the Tibetan Plateau of western
China) and the chenopod-associated environmental factors (including soil moisture, soil available
phosphorous (P) concentration, pH, and salt content) were analyzed. Our results showed that
approximately 60% of the studied chenopods were colonized by arbuscular mycorrhizal (AM) fungi with a
colonization percentage ranging from 5% to 33%. Structural analysis of mycorrhizal association indicated
that vesicles were quite common, while arbuscules and hyphal coils were relatively rare. In addition, a
positive correlation between mycorrhizal colonization rate and soil electrical conductivity (r=0.920,
P<0.01) and two negative correlations of mycorrhizal colonization rates with soil moisture (r= –0.818,
P<0.01) and the soil available P concentration (r= –0.876, P<0.01) confirmed that mycorrhizal
colonization rate in the roots of chenopods was environment-dependent.
The National Natural Science Foundation of China (31300097, 31470405), and the
Foundation of Jilin Provincial Education Department and the China Scholarship Council (201506625023). We
thank Dr. CAI Xiaobu and Dr. ZHANG Ke for their help with field work.
通讯作者: ZHANG Tao
E-mail: zhangt946@nenu.edu.cn
引用本文:
ZHAO Yinan,YU Hongqing,ZHANG Tao等. Mycorrhizal colonization of chenopods and its influencing factors in different saline habitats, China[J]. Journal of Arid Land, 2017, 9(1): 143-152.
ZHAO Yinan,YU Hongqing,ZHANG Tao et al. Mycorrhizal colonization of chenopods and its influencing factors in different saline habitats, China[J]. Journal of Arid Land, 2017, 9(1): 143-152.
2017, Vol. 9 
