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The Effect of (2‐Chloroethyl) Trimethyl Ammoniumchloride (CCC) and Gibberellic Acid (GA) on Ribonucleic Acid and Protein Concentration of Wheat Plants 1
Author(s) -
Bokhari Unab G.,
Youngner Victor B.,
Young Roy E.
Publication year - 1973
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1973.0011183x001300040002x
Subject(s) - gibberellic acid , rna , biology , protein biosynthesis , botany , biochemistry , horticulture , germination , gene
Protein and RNA concentrations of wheat ( Triticum aestivum L.) plants were studied in relation to treatments with the growth retardant (2‐chloroethyl) trimethyl ammoniumchloride (CCC) and gibberellic acid (GA 3 ). Eleven days after CCC application as a soil drench, internode RNA concentrations were increased by all CCC concentrations used (10 −1 to 10 −3 M ), but leaf RNA concentrations were increased only by CCC levels of 10 −1 to 10 −3 M . Internode protein concentrations were increased by CCC levels of 10 −3 to 10 −6 M and leaf protein concentrations by 10 −1 to 10 −5 levels. Twenty‐one days after soil drench treatments, leaf RNA concentrations were increased by CCC levels of 10 −1 to 10 −5 M and internode and leaf protein concentrations were increased by all CCC levels. High concentrations of CCC (10 −2 to 10 −5 M ) applied to the roots in Hoagland's solution reduced RNA and protein concentrations and low CCC levels (10 −6 to 10 −8 M ) increased them. An addition of 10 µg/ml of GA 3 caused RNA and protein concentrations to increase greatly at the lower CCC levels. High concentrations of CCC may have an inhibitory effect on RNA and protein synthesis resulting from a reduction‐in GA or GA‐like substances. The effect of low CCC concentrations may be independent of growth regulators.