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BIOLOGICAL EFFECTS OF SURFACTANTS
Author(s) -
HEALEY PATRICK L.,
ERNST ROBERT,
ARDITTI JOSEPH
Publication year - 1971
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1971.tb02548.x
Subject(s) - chemistry , membrane , biophysics , swelling , vesicle , cytoplasm , plasmolysis , biological membrane , chloroplast , biochemistry , pulmonary surfactant , protoplasm , ultrastructure , chromatin , cell wall , biology , botany , chemical engineering , dna , gene , engineering
S ummary Effects of a nonionic surface active agent (lauroyl/myristoyl di (2‐hydroxyethyl) amide) and one anionic surfactant (sodium (linear) dodecylbenzene sulphonate) on cell ultrastructure were determined using Phalaenopsis protocorms. There were no observable effects after 5 days exposure to 1000 ppm of the nonionic. However, the anionic caused severe damage. Drastic changes in morphology, loss of membranes, swelling of thylakoids and appearance of dense osmophilic granules were evident in chloroplasts. Other effects include disintegration of polysomes into monosomes; swelling of mitochondria; dispersion of chromatin in the nucleus; appearance of unidentified vesicles in the cytoplasm and plasmolysis of cells. These ultra‐structural changes can be attributed to the possible emulsification of membrane lipids as well as precipitation and dispersion of cellular proteins.