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Effects of fumigation with hydrogen fluoride on the loading of [ 14 C]sucrose into the phloem of soybean leaves
Author(s) -
Madkour Samia,
Weinstein Leonard H.
Publication year - 1988
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620070407
Subject(s) - phloem , fumigation , sucrose , chemistry , hydrogen , botany , horticulture , agronomy , biology , biochemistry , organic chemistry
The effect of gaseous hydrogen fluoride (HF) on the loading of [ 14 C]sucrose into phloem was studied because this response was a possible target site for F inhibition of translocation of photoassimilate in intact soybean plants. The active loading of [ 14 C]sucrose into the minor veins of soybean leaf discs was inhibited by continuously exposing the plants to HF at nominal concentrations of 1, 3 and 5 μg F m −3 for 8 to 11 d under both controlled‐environment and field conditions. The data suggest that phloem loading at atmospheric levels of HF greater than approximately 1 μg m −3 was inhibited less in the plants grown and fumigated in the field than in the laboratory.