Adaptation to long-term cold-girdling in genotypes of common bean (Phaseolus vulgaris L.).
The effect of long-term cold-girdling on phloem transport and resource allocation in whole plants of common bean is described. Wide differences were found between genotypes, with some maintaining translocation when cold-girdled. This provides evidence to support passive phloem transport. The possibilities that cold-girdling may physically block transport and/or disrupt root-shoot signalling are discussed.
Hannah
M A
MA
School of Biology, University of Leeds, Leeds LS2 9JT, UK. bgmah@leeds.ac.uk
Iqbal
M J
MJ
Sanders
F E
FE
D000222:Adaptation, Physiological; D001692:Biological Transport; D003080:Cold Temperature; D007887:Fabaceae / Q000235:genetics / Q000502:physiology*; D005838:Genotype; D010946:Plants, Medicinal