Influence of repeated prescribed burning on incorporation of 13C from cellulose by forest soil fungi as determined by RNA stable isotope probing

Bastias, Brigitte A.; Anderson, Ian C.; Rangel‐Castro, J. Ignacio; Parkin, Pamela I.; Prosser, James I.; Cairney, John

doi:10.1016/j.soilbio.2008.11.018

Cited by 27 publications

(19 citation statements)

References 32 publications

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“…For example, maintaining short fire intervals (e.g. ≤5 years) may be detrimental to particular taxa, as has been shown in several manipulative and natural field studies for a range of taxonomic groups, including vascular plants (Bradstock et al, 1997;Cary and Morrison, 1995;Morrison et al, 1995;Watson and Wardell-Johnson, 2004), fungi (Anderson et al, 2007;Bastias et al, 2006Bastias et al, , 2009, vertebrates (Catling, 1991;Woinarski et al, 2004) and invertebrates (Andersen, 1991b;Andersen et al, 2003Andersen et al, , 2006Hanula and Wade, 2003;Orgeas and Andersen, 2001;Vanderwoude et al, 1997;York, 1999aYork, , 1999bYork, , 2000. We suggest that substantial ecological change occurred in most of these studies because short fire intervals were maintained over an extended period of time.…”

Section: Discussionmentioning

confidence: 58%

“…Andersen, 1991b;Andersen et al, 2006;Anderson et al, 2007;Bastias et al, 2006Bastias et al, , 2009Collett, 1999;Hanula and Wade, 2003;Parr et al, 2004;Vanderwoude et al, 1997;York, 1999aYork, , 1999bYork, , 2000. Our findings relate to a post-fire period of 4-6 years but do not address the particular situation of species suited to late seral stages.…”

Section: Plantsmentioning

confidence: 68%

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Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Wittkuhn

McCaw

Wills³

et al. 2011

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 58%

Section: Plantsmentioning

confidence: 68%

Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Wittkuhn

McCaw

Wills³

et al. 2011

Forest Ecology and Management

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“…Recent SIP studies utilizing 13 C-labeled substrates have uncovered active microbial cellulose degraders or carbon utilizers in environmental samples (Haichar et al, 2007; Bastias et al, 2009; Eichorst and Kuske, 2012). However, this is the first study to report the successful use of SIP with lignocellulose, a more realistic proxy for plant carbon than cellulose alone, to identify microbes responsive to macrophyte-derived carbon.…”

Section: Discussionmentioning

confidence: 99%

Lignocellulose-responsive bacteria in a southern California salt marsh identified by stable isotope probing

2014

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Carbon cycling by microbes has been recognized as the main mechanism of organic matter decomposition and export in coastal wetlands, yet very little is known about the functional diversity of specific groups of decomposers (e.g., bacteria) in salt marsh benthic trophic structure. Indeed, salt marsh sediment bacteria remain largely in a black box in terms of their diversity and functional roles within salt marsh benthic food web pathways. We used DNA stable isotope probing (SIP) utilizing 13C-labeled lignocellulose as a proxy to evaluate the fate of macrophyte-derived carbon in benthic salt marsh bacterial communities. Overall, 146 bacterial species were detected using SIP, of which only 12 lineages were shared between enriched and non-enriched communities. Abundant groups from the 13C-labeled community included Desulfosarcina, Spirochaeta, and Kangiella. This study is the first to use heavy-labeled lignocellulose to identify bacteria responsible for macrophyte carbon utilization in salt marsh sediments and will allow future studies to target specific lineages to elucidate their role in salt marsh carbon cycling and ultimately aid our understanding of the potential of salt marshes to store carbon.

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“…SIP has been used to detect bacteria participating in degradation of plant residues and specific plant polymers, including cellulose (3,5,21,51). Similar microcosm studies have been conducted to detect cellulolytic fungi (3).…”

mentioning

confidence: 99%

Identification of Cellulose-Responsive Bacterial and Fungal Communities in Geographically and Edaphically Different Soils by Using Stable Isotope Probing

Eichorst

Kuske

2012

Appl Environ Microbiol

183

106

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Many bacteria and fungi are known to degrade cellulose in culture, but their combined response to cellulose in different soils is unknown. Replicate soil microcosms amended with [ 13 C]cellulose were used to identify bacterial and fungal communities responsive to cellulose in five geographically and edaphically different soils. The diversity and composition of the cellulose-responsive communities were assessed by DNA-stable isotope probing combined with Sanger sequencing of small-subunit and largesubunit rRNA genes for the bacterial and fungal communities, respectively. In each soil, the 13 C-enriched, cellulose-responsive communities were of distinct composition compared to the original soil community or 12 C-nonenriched communities. The composition of cellulose-responsive taxa, as identified by sequence operational taxonomic unit (OTU) similarity, differed in each soil. When OTUs were grouped at the bacterial order level, we found that members of the Burkholderiales, Caulobacteriales, Rhizobiales, Sphingobacteriales, Xanthomonadales, and the subdivision 1 Acidobacteria were prevalent in the 13 C-enriched DNA in at least three of the soils. The cellulose-responsive fungi were identified as members of the Trichocladium, Chaetomium, Dactylaria, and Arthrobotrys genera, along with two novel Ascomycota clusters, unique to one soil. Although similarities were identified in higher-level taxa among some soils, the composition of cellulose-responsive bacteria and fungi was generally unique to a certain soil type, suggesting a strong potential influence of multiple edaphic factors in shaping the community.

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Influence of repeated prescribed burning on incorporation of 13C from cellulose by forest soil fungi as determined by RNA stable isotope probing

Cited by 27 publications

References 32 publications

Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Lignocellulose-responsive bacteria in a southern California salt marsh identified by stable isotope probing

Identification of Cellulose-Responsive Bacterial and Fungal Communities in Geographically and Edaphically Different Soils by Using Stable Isotope Probing

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