Vegetative survival and reproduction under submerged and air-exposed conditions and vegetative survival as affected by salts, pesticides, and metals in aerial green alga Trentepohlia aurea.
Trentepohlia aurea vegetative cells do not survive submerged conditions for more than 5 months, but can survive air-exposed conditions for more than 1 year. Disintegration and rapid death of algal cells was observed to a higher extent under submerged than air-exposed condition. Under submerged conditions T. aurea did not form any sporangium while prolific formation occurred under air-exposed conditions. Under submerged conditions algal cells formed few-celled, filamentous, cytoplasmic type setae. Vegetative cells were resistant to some extent to various levels of salt (NaCl, < or = 0.8 mol/L), pesticides (DDT, 2,4-D or captan, 2000 ppm) and 'heavy' metals (zinc or nickel, 200 ppm; cobalt, < or = 100 ppm.)
Gupta
S
S
Department of Botany, University of Allahabad, Allahabad, India.
Agrawal
S C
SC
D000332:Aerobiosis; D000388:Air; D000460:Chlorophyta / Q000187:drug effects* / Q000254:growth & development*; D004351:Drug Resistance; D007101:Immersion; D019216:Metals, Heavy / Q000494:pharmacology*; D010575:Pesticides / Q000494:pharmacology*; D012965:Sodium Chloride / Q000494:pharmacology*
D019216:Metals, Heavy; D010575:Pesticides; D012965:Sodium Chloride