Margarita Stritzler1,2, Ana Diez Tissera1, Gabriela Soto1,2, Nicolás Ayub3,4. 1. Instituto de Genética, CICVyA (INTA), De los reseros S/N, Castelar C25(1712), Buenos Aires, Argentina. 2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. 3. Instituto de Genética, CICVyA (INTA), De los reseros S/N, Castelar C25(1712), Buenos Aires, Argentina. nicoayub@gmail.com. 4. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. nicoayub@gmail.com.
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.
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.
Authors: Xue-Xian Zhang; Stephen R Ritchie; Hao Chang; Dawn L Arnold; Robert W Jackson; Paul B Rainey Journal: Ecol Evol Date: 2020-05-11 Impact factor: 2.912
Authors: Viktor E Tsyganov; Anna V Tsyganova; Artemii P Gorshkov; Elena V Seliverstova; Viktoria E Kim; Elena P Chizhevskaya; Andrey A Belimov; Tatiana A Serova; Kira A Ivanova; Olga A Kulaeva; Pyotr G Kusakin; Anna B Kitaeva; Igor A Tikhonovich Journal: Front Microbiol Date: 2020-01-29 Impact factor: 5.640