Ecology of soil microbes in a tropical mangrove forest of south east coast of India

Saravanakumar, Kandasamy; Anburaj, Raj; Gomathi, V.; Kathiresan, K.

doi:10.1016/j.bcab.2016.08.010

Cited by 14 publications

(18 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…dry season). Wet seasons appeared favourable to microbial colonization in mangrove ecosystems and particularly for Fungi (Saravanakumar et al, 2016) as the salinity decrease and temperature increase (Molnar et al, 2014;Leopold et al, 2016). Moreover, the degree of wetness is an important factor regulating microbial cycling of organic matter in mangrove sediments such as Fungi (Alongi et al, 2005) which is consistent with the 65.4% of indicator OTUs affiliated with Dothideomycetes during March (i.e.…”

Section: The Impact Of Season On Fungal Assemblagesupporting

confidence: 68%

“…Wet seasons appeared favourable to microbial colonization in mangrove ecosystems and particularly for Fungi (Saravanakumar et al, 2016) as the salinity decrease and temperature increase (Molnar et al, 2014;Leopold et al, 2016). dry season).…”

Section: The Impact Of Season On Fungal Assemblagementioning

confidence: 99%

“…Mangroves are detritus-based ecosystems and are thus colonized with an important community of terrestrial saprotrophic Fungi playing a key role in the decomposition of the lignocellulosic sedimentary organic matter (Saravanakumar et al, 2016) but could also be the result of marine mycoplankton draining existing as free-living filamentous and yeast forms, or as parasites of other plankton (Taylor and Cunliffe, 2016). In this study, we showed that fungal diversity in mangrove sediments is dominated by Dikarya, mainly Ascomycota but also Basidiomycota, and to a lesser extent to Chytridiomycota and Glomeromycota.…”

Section: Evidence For Microbial Distribution Patterns According To Depthmentioning

confidence: 99%

“…In general, microbial load in forest ecosystems could change the properties of the habitat (Žif cáková et al, 2016). It is then important to understand the microbial ecology of mangrove sediments in the present context of global warming and sea level rise to better understand and protect the ecologically sensitive mangrove habitats (Saravanakumar et al, 2016). Many studies have been conducted in pristine versus contaminated mangrove ecosystems, demonstrating microbial shifts associated to the state of preservation (Basak et al, 2015;Jing et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…In the same way, many studies considered prokaryotic and eukaryotic compartments separately (Marcial Gomes et al, 2008;Arfi et al, 2012a,b) even though they collectively contribute to ecosystem functioning. Indeed, details regarding prokaryotic and eukaryotic microbial community structure along sediment depth and seasonal dynamics are still scarce (Saravanakumar et al, 2016). Since many microbial taxa detected in mangrove sediments remain uncultured microorganisms (Arfi et al, 2012b), a significant portion of the mangrove microbial diversity is overlooked using culture-dependent approaches (Singh et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Contrasted ecological niches shape fungal and prokaryotic community structure in mangroves sediments

Luis

Saint-Genis

Vallon

et al. 2019

Environmental Microbiology

View full text Add to dashboard Cite

Summary Mangroves are forest ecosystems located at the interface between land and sea where sediments presented a variety of contrasted environmental conditions (i.e. oxic/anoxic, non‐sulfidic/sulfidic, organic matter content) providing an ideal ecosystem to study microbial communities with niche differentiation and distinct community structures. In this work, prokaryotic and fungal compositions were investigated during both wet and dry seasons in New Caledonian mangrove sediments, from the surface to deeper horizons under the two most common tree species in this region (Avicennia marina and Rhizophora stylosa), using high‐throughput sequencing. Our results showed that Bacteria and Archaea communities were mainly shaped by sediment depth while the fungal community was almost evenly distributed according to sediment depth, vegetation cover and season. A detailed analysis of prokaryotic and fungal phyla showed a dominance of Ascomycota over Basidiomycota whatever the compartment, while there was a clear shift in prokaryotic composition. Some prokaryotic phyla were enriched in surface layers such as Proteobacteria, Euryarchaeota while others were mostly associated with deeper layers as Chloroflexi, Bathyarchaeota, Aminicenantes. Our results highlight the importance of considering fungal and prokaryotic counterparts for a better understanding of the microbial succession involved in plant organic matter decomposition in tropical coastal sediments.

show abstract