<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The effect of <italic>Pseudomonas putida</italic> BTP1, <italic>Bacillus subtilis</italic> Bs2500, Bs2504, and Bs2508 strains on the incidence (I) and severity (S) of barley leaf stripe disease caused by <italic>Pyrenophora graminea</italic> was evaluated under field conditions. Three barley cultivars varying in resistance level were used. The resistance achieved in our study was long-lasting. <italic>P. putida</italic> BTP1 and Bs2508 were in general the most effective strains in reducing significantly both I and S of barley leaf stripe disease vis-a-vis three cultivars in two growing seasons 2013/2014. The disease was reduced up to 66% in Arabi Abiad treated with <italic>P. putida</italic> BTP1. The susceptible landrace cultivar Arabi Abiad exhibited a significant induction of resistance by Bs2508 and BTP1. However, the resistant cultivar Banteng did not exhibit significant further increase in resistance by these bacterial strains. The grain yield of bacterized plants artificially inoculated with <italic>P. graminea</italic> was not affected, except that of the cultivar Arabi Abiad treated with Bs2508 and Bs2504. Triggering of resistance by treating seeds with the bacterial strains would be of great value in agriculture, especially in case of barley infection by <italic>P. graminea</italic> at an early stage of plant development.</p></abstract>

The effect of Pseudomonas putida BTP1, Bacillus subtilis Bs2500, Bs2504, and Bs2508 strains on the incidence (I) and severity (S) of barley leaf stripe disease caused by Pyrenophora graminea was evaluated under field conditions. Three barley cultivars varying in resistance level were used. The resistance achieved in our study was long-lasting. P. putida BTP1 and Bs2508 were in general the most effective strains in reducing significantly both I and S of barley leaf stripe disease vis-a-vis three cultivars in two growing seasons 2013/2014. The disease was reduced up to 66% in Arabi Abiad treated with P. putida BTP1. The susceptible landrace cultivar Arabi Abiad exhibited a significant induction of resistance by Bs2508 and BTP1. However, the resistant cultivar Banteng did not exhibit significant further increase in resistance by these bacterial strains. The grain yield of bacterized plants artificially inoculated with P. graminea was not affected, except that of the cultivar Arabi Abiad treated with Bs2508 and Bs2504. Triggering of resistance by treating seeds with the bacterial strains would be of great value in agriculture, especially in case of barley infection by P. graminea at an early stage of plant development.

Effect of several rhizobacteria strains on barley resistance against <italic>Pyrenophora graminea</italic> under field conditions

Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria (AECS), P. O. Box 6091, Damascus,

Hellenic Plant Protection Journal

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of several rhizobacteria strains on barley resistance against  under field conditions

The effect of Pseudomonas putida BTP1, Bacillus subtilis Bs2500, Bs2504, and Bs2508 strains on the incidence (I) and severity (S) of barley leaf stripe disease...

Effect of several rhizobacteria strains on barley resistance against Pyrenophora graminea under field conditions

Pubblicato online: 07 feb 2017

Pagine: 35 - 45

Ricevuto: 29 ago 2016

Accettato: 16 gen 2017

DOI: https://doi.org/10.1515/hppj-2017-0004

Parole chiave
Bs2500, Bs2504, Bs2508, Barley leaf stripe, Pseudomonas putida BTP1

© 2017 A. Adam et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of several rhizobacteria strains on barley resistance against Pyrenophora graminea under field conditions

Pubblicato online: 07 feb 2017

Pagine: 35 - 45

Ricevuto: 29 ago 2016

Accettato: 16 gen 2017

DOI: https://doi.org/10.1515/hppj-2017-0004

Parole chiaveBs2500, Bs2504, Bs2508, Barley leaf stripe, Pseudomonas putida BTP1

© 2017 A. Adam et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
Bs2500, Bs2504, Bs2508, Barley leaf stripe, Pseudomonas putida BTP1