info:eu-repo/semantics/article
Plant growth-promoting bacterium Pseudomonas fluorescens FR1 secrets a novel type of extracellular polyhydroxybutyrate polymerase involved in abiotic stress response in plants
Date
2018-10Registration in:
Stritzler, Margarita; Diez Tissera, Ana Laura; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel; Plant growth-promoting bacterium Pseudomonas fluorescens FR1 secrets a novel type of extracellular polyhydroxybutyrate polymerase involved in abiotic stress response in plants; Springer; Biotechnology Letters; 40; 9-10; 10-2018; 1419-1423
0141-5492
CONICET Digital
CONICET
Author
Stritzler, Margarita
Diez Tissera, Ana Laura
Soto, Gabriela Cynthia
Ayub, Nicolás Daniel
Abstract
Objectives: Identification of novel microbial factors contributing to plant protection against abiotic stress. Results: The genome of plant growth-promoting bacterium Pseudomonas fluorescens FR1 contains a short mobile element encoding a novel type of extracellular polyhydroxybutyrate (PHB) polymerase (PhbC) associated with a type I secretion system. Genetic analysis using a phbC mutant strain and plants showed that this novel extracellular enzyme is related to the PHB production in planta and suggests that PHB could be a beneficial microbial compound synthesized during plant adaptation to cold stress. Conclusion: Extracellular PhbC can be used as a new tool for improve crop production under abiotic stress.