Plant buffer systems in relation to the absorption of bases by plants
1932
Abstract does not appear. First page follows.
In view of the important storage and other functions of the parenchyma tissues of
agricultural plants, it may be granted that it is of paramount importance that these
tissues be kept in a healthy condition. The work of many investigators suggests that
a certain degree of constancy of the hydrogen-ion concentration of such tissues is
an important factor. To assist in maintaining the proper reaction, a system of buffering
in the vacuolar sap with respect to hydrogen ion is presumably necessary. This paper
deals with the buffer systems involved as reflected in the sap4 obtained by expression. The special feature of the investigation was the use of plants
grown under controlled conditions of solution or sand-culture technique. Aside from
some earlier work conducted in this laboratory, very little study has been made of
sap obtained from plants grown in definitely controlled nutrient solutions.
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