کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4528800 | 1324333 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of water-level fluctuations on the arbuscular mycorrhizal colonization of Typha latifolia L. Effects of water-level fluctuations on the arbuscular mycorrhizal colonization of Typha latifolia L.](/preview/png/4528800.png)
Flooding has been described as one of the primary factors affecting arbuscular mycorrhizal (AM) colonization in wetlands. We investigated the effect of water-level fluctuations on AM colonization of Typha latifolia L. using an experimental wetland in southeastern Idaho, USA that received intermittent flows. Unlike previous research that has examined the effect of flooding on AM fungi using topographic gradients, we replicated flooding in time by sampling across multiple flooding events. AM colonization of T. latifolia occurred during flooded and unflooded periods, but was markedly reduced at drawdown. Both hyphal (R = 0.74, P = 0.015) and arbuscular (R = 0.67, P = 0.033) colonization were positively correlated with the length of the unflooded period. Taken together, the length of the unflooded period and soil moisture explained 83% of the variation in mean hyphal colonization (R2 = 0.83, P = 0.001). Overall, the results of this investigation show that drawdown represents a period of reduced AM colonization in T. latifolia.
Journal: Aquatic Botany - Volume 84, Issue 3, April 2006, Pages 210–216