Abstract
A new, single gene, recessive internode length mutant in Pisum, lkd, is described. The internodes of lkd plants are ca. 40% shorter than comparable Lkd plants and this difference appears greater in the dark than in the light. The mutant does not appear to be dwarfed due to modified gibberellin (GA) levels, as determined by gas-chromatography-selected ion monitoring (GC-SIM) for GA1 and GA20. In relative terms, the mutant responds as well as the wild-type to applied GA1. However due to its initial short stature it does not elongate to the same extent as the wild-type to high doses of GA1 suggesting that some other factor, unrelated to GA levels or perception is probably limiting growth in this mutant.
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Cramp, R.E., Reid, J.B. Internode length in Pisum. Gene lkd . Plant Growth Regul 12, 141–147 (1993). https://doi.org/10.1007/BF00144595
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DOI: https://doi.org/10.1007/BF00144595