The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant
Year: 2015
Type: article
Abstract: Studies were performed on young bean plants, grown in water culture. The effect of salt stress, X-flays and flooding on growth, photosynthesis and translocation of assimilates was investigated. Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes, but most dramatically - photosynthesis. Export of photosynthetes from the blades decreased. Salt stress not only reduced the rate of translocation, but also influenced the pattern of 14C-distoibution, especially inhibited transport to apical part, with growth seriously retarded. Gibberellin (GA3, 100 ppm sprayed on leaves) counteracted the negative effects caused by salinization, but did not affected either photosynthesis, or translocation in plants from normal nutrient solution. The conclusion may be advanced, that salt stress disturbed the balance of plant hormones especially gibberellins, which probably participate in. regulation of assimilate translocation.
Authors: Z. Strack, R. Karwowska, E. Kraszewska
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $560
OpenAlex ID: W2279420719