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Growth response of Calothrix marchica LEMM var. intermedia RAO to exogenous organic substrates and distillery effluent in the light and dark
Author(s) -
Adhikary S. P.
Publication year - 1987
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620270902
Subject(s) - effluent , heterotroph , chemistry , sucrose , organic matter , botany , sugar , biology , food science , bacteria , environmental science , environmental engineering , organic chemistry , genetics
Calothrix marchica LEMM. var. intermedia RAO has been found to grow abundantly in soil receiving the effluent of a molasses distillery. The effluent at low concentrations (1–10%, v/v) and at neutral pH increased the growth of the organism. The cyanobacterium grew photoheterotrophically as well as chemoheterotrophically in the medium supplemented with sucrose and lower concentration (10%, v/v) of neutralized distillery effluent. The exogenous carbon sources were also utilized probably in certain specific biosynthetic process, for example, in the synthesis of sheath layer around the trichome of the cyanobacterium. Formation of sheath was not observed in the medium with mannose, pentoses and organic acids which did not support the heterotrophic growth.