Affiliation:
1. Kuprevich Institute of Experimental Botany of the National Academy of Sciences of Belarus
2. Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus
Abstract
The article discusses the influence of caffeic acid (CA), its mix with chitosan (CHT + CA) and chitosan-based conjugate (CHT-CA) on growth and proline content of microclone potato plants (Solanum tuberosum L.) in in vitro culture under optimal conditions and under prolonged osmotic stress caused by polyethylene glycol. Under optimal conditions CHT-CA and CA, acting as moderate strength stressors, accelerate the growth and development of potato microclones and increase the proline accumulation in the stems. Under osmotic stress CA and CHT-CA promote the resistance of potato microclones and maintain their active growth. And such effect persists during the reparation period. The mechanical mix CHT + CA causes inhibition of microclonal plants’ growth and development accompanied by a significant accumulation of proline which is aggravated under stress.
Publisher
The Russian Academy of Sciences