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THE EFFECT OF BICARBONATE ON THE UPTAKE OF IRON IN FOUR RELATED GRASSES
Author(s) -
WOOLHOUSE H. W.
Publication year - 1966
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.1469-8137.1966.tb06373.x
Subject(s) - bicarbonate , shoot , chromosomal translocation , botany , sodium bicarbonate , biology , chemistry , biochemistry , gene , endocrinology
S ummary A sodium bicarbonate concentration of 20 m‐equiv./l brought about a partial inhibition of uptake of 59 Fe by intact roots of Deschampsia flexuosa; subsequent translocation of the 59 Fe to the shoots was also inhibited. A similar concentration of bicarbonate produced no inhibition of uptake by the related grasses Holcus mollis, Arrhenatherum elatius and Koeleria cristata . The amount of 59 Fe translocated to the shoots in the course of the experiment was less than 1% of the amount of isotope which became associated with roots. Whilst the high uptake by the roots is suggestive of some absorption on the root surface there is evidence also of uptake, probably into a substantial pool of free iron within the root.