Biological rhythms of Arbuscular Mycorrhizal Fungi under influence of seasonality in semiarid region in Brazil

Costa, Cássio Ricardo Gonçalves da; Moura, Débora Coelho; Marques, Ailson de Lima; Silva, Marcos Gomes da; Linhares, Anne Carolline Maia; Silva, Sonaria de Sousa; Cavalcanti, Maria Idaline Pessoa

doi:10.1080/09291016.2019.1646506

Cited by 1 publication

(2 citation statements)

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“…The seasonal fluctuations in the colonization (hyphae, vesicles, and arbuscules), richness and sporulation are already known [49,120,121]. Corroborating our results, higher richness in the terrestrial condition has generally been found in the dry season and may be associated with higher sporulation detected in this period [51,122,123].…”

Section: Discussionsupporting

confidence: 85%

“…Few studies on the submerged condition have investigated AMF communities or evaluated the influence of environmental variables on them, e.g., [19,22,[46][47][48]. In terrestrial environments, AMF community dynamics are seasonally influenced [49][50][51]. However, there is no evidence to show a seasonal influence on the occurrence of AMF in aquatic sediments in tropical environments.…”

Section: Introductionmentioning

confidence: 99%

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Richness of Arbuscular Mycorrhizal Fungi in a Brazilian Tropical Shallow Lake: Assessing an Unexpected Assembly in the Aquatic-Terrestrial Gradient

et al. 2022

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Aquatic ecosystems are historically overlooked regarding the occurrence of Arbuscular Mycorrhizal Fungi (AMF). Tropical lakes in the southern hemisphere are generally impacted by human actions, such as those in Brazil, although they still preserve a great diversity of macrophyte species that can support AMF communities. Thus, the study aimed to test (i) whether AMF community structure (composition, richness, diversity, dominance, and evenness) differs between aquatic and terrestrial conditions, and (ii) between seasons—rainy and dry. A total of 60 AMF species, distributed in 10 families and 17 genera, were found, with a difference in AMF composition between conditions (terrestrial and aquatic) and seasons (dry and rainy). The absolute species richness differed between conditions, seasons, and interactions. The aquatic/rainy season, which retrieved the most significant number of species, had the highest absolute richness and number of glomerospores and differed significantly from the terrestrial/rainy season. The results suggest that a shallow oligotrophic lake harbors a high AMF richness. In addition, this environment has a distinct AMF community from the adjacent coastal sand plain vegetation and is affected by seasonality.

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