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Effect of Trifluralin Synthesis Intermediates on Plant Cell Membrane Permeability and Growth of Plants and Fungi
Author(s) -
Vianello A.,
Macri F.,
Nardi S.,
Chandler C.,
Renosto F.
Publication year - 1981
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1981.00472425001000030030x
Subject(s) - trifluralin , phytotoxicity , chemistry , membrane permeability , mycelium , membrane , cell permeability , botany , biology , biochemistry , agronomy , pesticide
The phytotoxicity of the intermediates of (i) trifluralin synthesis, (ii) 4‐chloro‐ α,α,α ‐trifluorotolouene, (iii) 4‐chloro‐3‐nitro‐ α,α,α ‐trifluorotoluene, and (iv) 4‐chloro‐3,5‐dinitro‐ α,α,α ‐trifluorotoluene, in comparison with that of trifluralin, was studied. All the intermediates affected the permeability of cell membranes and inhibited corn root growth. Compound (iv) was more toxic than (iii) and (ii), and monocotyledons were more sensitive than dicotyledons. (iv) also inhibited the mycelial growth of some fungi. On the contrary, trifluralin (i) did not affect membrane function. It is suggested that the mechanism of action of (ii), (iii), and (iv) is different to that postulated for trifluralin.