TY - JOUR
T1 - Development of the polysaccharidic matrix in biocrusts induced by a cyanobacterium inoculated in sand microcosms
AU - Mugnai, Gianmarco
AU - Rossi, Federico
AU - Felde, Vincent John Martin Noah Linus
AU - Colesie, Claudia
AU - Büdel, Burkhard
AU - Peth, Stephan
AU - Kaplan, Aaron
AU - De Philippis, Roberto
N1 - Publisher Copyright:
© 2017, Springer-Verlag GmbH Germany.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Soil inoculation with cyanobacteria (cyanobacterization) is a biotechnological method widely studied to improve soil quality and productivity. During their growth on soil, cyanobacteria excrete exopolysaccharides (EPSs) which glue trichomes to soil particles, in a three-dimensional extracellular polymeric matrix. EPS productivity is an important screening parameter to select proficient inoculants and is affected by growth conditions and abiotic stresses. In this study, we evaluated the capability of the cyanobacterium Schizothrix cf. delicatissima AMPL0116 to form biocrusts when inoculated in sand microcosms under stressing conditions, and the characteristics of the synthesized polymeric matrix. In parallel, we evaluated the characteristics of exopolysaccharidic exudates of the strain when grown in liquid culture, under optimal growth setting. Our results pointed out at significant differences of the exopolymers produced in the two conditions in terms of monosaccharidic composition and molecular weight distribution, and proved the capability of S. cf. delicatissima AMPL0116 to form stable bioaggregates on sandy soils.
AB - Soil inoculation with cyanobacteria (cyanobacterization) is a biotechnological method widely studied to improve soil quality and productivity. During their growth on soil, cyanobacteria excrete exopolysaccharides (EPSs) which glue trichomes to soil particles, in a three-dimensional extracellular polymeric matrix. EPS productivity is an important screening parameter to select proficient inoculants and is affected by growth conditions and abiotic stresses. In this study, we evaluated the capability of the cyanobacterium Schizothrix cf. delicatissima AMPL0116 to form biocrusts when inoculated in sand microcosms under stressing conditions, and the characteristics of the synthesized polymeric matrix. In parallel, we evaluated the characteristics of exopolysaccharidic exudates of the strain when grown in liquid culture, under optimal growth setting. Our results pointed out at significant differences of the exopolymers produced in the two conditions in terms of monosaccharidic composition and molecular weight distribution, and proved the capability of S. cf. delicatissima AMPL0116 to form stable bioaggregates on sandy soils.
KW - Biocrusts
KW - Cyanobacteria
KW - Cyanobacterization
KW - EPSs
KW - Extracellular polymeric matrix
KW - Microcosm inoculation
UR - http://www.scopus.com/inward/record.url?scp=85028764371&partnerID=8YFLogxK
U2 - 10.1007/s00374-017-1234-9
DO - 10.1007/s00374-017-1234-9
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AN - SCOPUS:85028764371
SN - 0178-2762
VL - 54
SP - 27
EP - 40
JO - Biology and Fertility of Soils
JF - Biology and Fertility of Soils
IS - 1
ER -