PMID- 34315956
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20210930
LR  - 20230205
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 11
IP  - 1
DP  - 2021 Jul 27
TI  - Biocementation mediated by native microbes from Brahmaputra riverbank for 
      mitigation of soil erodibility.
PG  - 15250
LID - 10.1038/s41598-021-94614-6 [doi]
LID - 15250
AB  - Riverbank erosion is a global problem with significant socio-economic impacts. 
      Microbially induced calcite precipitation (MICP) has recently emerged as a 
      promising technology for improving the mechanical properties of soils. The 
      present study investigates the potential of selectively enriched native 
      calcifying bacterial community and its supplementation into the riverbank soil of 
      the Brahmaputra river for reducing the erodibility of the soil. The ureolytic and 
      calcium carbonate cementation abilities of the enriched cultures were 
      investigated with reference to the standard calcifying culture of Sporosarcina 
      pasteurii (ATCC 11859). 16S rRNA analysis revealed Firmicutes to be the most 
      predominant calcifying class with Sporosarcina pasteurii and 
      Pseudogracilibacillus auburnensis as the prevalent strains. The morphological and 
      mineralogical characterization of carbonate crystals confirmed the calcite 
      precipitation potential of these communities. The erodibility of soil treated 
      with native calcifying communities was examined via needle penetration and 
      lab-scale hydraulic flume test. We found a substantial reduction in soil erosion 
      in the biocemented sample with a calcite content of 7.3% and needle penetration 
      index of 16 N/mm. We report the cementation potential of biostimulated ureolytic 
      cultures for minimum intervention to riparian biodiversity for an environmentally 
      conscious alternative to current erosion mitigation practices.
CI  - (c) 2021. The Author(s).
FAU - Dubey, Anant Aishwarya
AU  - Dubey AA
AD  - Indian Institute of Technology, Guwahati, 781039, India.
AD  - Curtin University, Perth, WA, 6152, Australia.
FAU - Ravi, K
AU  - Ravi K
AD  - Indian Institute of Technology, Guwahati, 781039, India.
FAU - Mukherjee, Abhijit
AU  - Mukherjee A
AD  - Curtin University, Perth, WA, 6152, Australia.
FAU - Sahoo, Lingaraj
AU  - Sahoo L
AD  - Indian Institute of Technology, Guwahati, 781039, India.
FAU - Abiala, Moses Akindele
AU  - Abiala MA
AD  - Mountain Top University, Prayer City, Nigeria.
FAU - Dhami, Navdeep K
AU  - Dhami NK
AD  - Curtin University, Perth, WA, 6152, Australia. navdeep.dhami@curtin.edu.au.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210727
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
EIN - Sci Rep. 2021 Sep 1;11(1):17778. PMID: 34471206
PMC - PMC8316328
COIS- The authors declare no competing interests.
EDAT- 2021/07/29 06:00
MHDA- 2021/07/29 06:01
PMCR- 2021/07/27
CRDT- 2021/07/28 06:11
PHST- 2021/02/12 00:00 [received]
PHST- 2021/06/30 00:00 [accepted]
PHST- 2021/07/28 06:11 [entrez]
PHST- 2021/07/29 06:00 [pubmed]
PHST- 2021/07/29 06:01 [medline]
PHST- 2021/07/27 00:00 [pmc-release]
AID - 10.1038/s41598-021-94614-6 [pii]
AID - 94614 [pii]
AID - 10.1038/s41598-021-94614-6 [doi]
PST - epublish
SO  - Sci Rep. 2021 Jul 27;11(1):15250. doi: 10.1038/s41598-021-94614-6.