Regulation of peroxidase activity under the influence of signaling molecules and Bacillus subtilis 26D in potato plants infected with Phytophthora infestans

2014 ◽  
Vol 50 (2) ◽  
pp. 173-178 ◽  
Author(s):  
I. V. Maksimov ◽  
P. P. Abizgildina ◽  
A. V. Sorokan’ ◽  
G. F. Burkhanova
Keyword(s):  
Bacillus Subtilis ◽  
Phytophthora Infestans ◽  
Peroxidase Activity ◽  
Signaling Molecules ◽  
Potato Plants

scholarly journals Endophytic Strain Bacillus subtilis 26DCryChS Producing Cry1Ia Toxin from Bacillus thuringiensis Promotes Multifaceted Potato Defense against Phytophthora infestans (Mont.) de Bary and Pest Leptinotarsa decemlineata Say

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1115
Author(s):  
Antonina Sorokan ◽  
Galina Benkovskaya ◽  
Guzel Burkhanova ◽  
Darya Blagova ◽  
Igor Maksimov
Keyword(s):  
Bacillus Subtilis ◽  
Late Blight ◽  
Phytophthora Infestans ◽  
Leptinotarsa Decemlineata ◽  
Systemic Resistance ◽  
Pr Genes ◽  
Mycelium Growth ◽  
Modern Approach ◽  
Potato Plants ◽  
Leptinotarsa Decemlineata Say

Novel properties of a previously obtained Bacillus subtilis 26DCryChS strain are described. The B. subtilis 26DCryChS strain is able to produce Cry1Ia δ-endotoxin from B. thuringiensis B-5351 and to exist in internal plant tissues of potato plants in the same manner as the endophytic B. subtilis 26D source strain (487 ± 53 and 420 ± 63 CFU*103/g, respectively). B. subtilis 26DCryChS, as much as the original B. subtilis 26D strain, inhibited mycelium growth of oomycete Phytophthora infestans (Mont.) de Bary and reduced late blight symptoms development on plants by 35% compared with non-treated ones, as well as showed insecticidal activity against Leptinotarsa decemlineata. Production of the fluorescent GFP protein in the B. subtilis 26D genome allowed visualizing the endophytes around damaged sites on beetle intestines. Bacillus strains under investigation induced systemic resistance to P. infestans and L. decemlineata through the activation of the transcription of PR genes in potato plants. Thus, the B. subtilis 26DCryChS strain was able to induce transcription of jasmonate-dependent genes and acquired the ability to promote transcription of a salicylate-dependent gene (PR1) in plants infected with the late blight agent and damaged by Colorado potato beetle larvae. The B. subtilis 26DCryChS strain could be put forward as a modern approach for biocontrol agents design.

Field application of Bacillus subtilis isolates for controlling late blight disease of potato caused by Phytophthora infestans

2019 ◽  
Vol 22 ◽  
pp. 101366 ◽  
Author(s):  
Bhimanagoud Kumbar ◽  
Riaz Mahmood ◽  
S.N. Nagesha ◽  
M.S. Nagaraja ◽  
D.G. Prashant ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Late Blight ◽  
Phytophthora Infestans ◽  
Field Application ◽  
Late Blight Disease ◽  
Blight Disease

scholarly journals Determination of Resistance to Phytophthora infestans on Potato Plants in Field, Laboratory and Greenhouse Conditions

2013 ◽  
Vol 5 (5) ◽  
Author(s):  
Buddhi P. Sharma ◽  
Gregory A. Forbes ◽  
Hira K. Manandhar ◽  
Sundar M. Shrestha ◽  
Resham B. Thapa
Keyword(s):  
Phytophthora Infestans ◽  
Potato Plants ◽  
Field Laboratory

scholarly journals EFFECT OF THE COMPLEX OF ENDOPHYTIC BACTERIA BACILLUS WITH SALICYLIC AND JASMONIC ACIDS ON THE STATE OF THE PRO- / ANTIOXIDANT SYSTEM OF PLANTS AND THE RESISTANCE OF POTATOES WHEN INFECTED WITH LATE BLIGHT UNDER STRESS

ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 135-142
Author(s):  
L.G. Yarullina ◽  
◽  
E.A. Cherepanova ◽  
V.O. Tsvetkov ◽  
G.F. Burkhanova ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Late Blight ◽  
Antioxidant System ◽  
The State ◽  
Soil Drought ◽  
Potato Plants ◽  
Moisture Deficit ◽  
Catalase Peroxidase ◽  
Potato Resistance ◽  
Late Blight Pathogen

There was researched the effect of Bacillus subtilis bacteria in combination with salicylic (SA) and jasmonic (JA) acids on the state of the pro / antioxidant system (hydrogen peroxide content, catalase, peroxidase, superoxide dismutase activity) in connection with the development of potato resistance to late blight pathogen - oomycete Phytophthora infestans (Mont.) de Bary under moisture deficit conditions. Plants grown from microtubers of the Rannyaya Rosa cultivar were sprayed with a suspension of B. subtilis (108 cells / ml) and a mixture of bacteria with SA (10-6 M), JA (10-7 M), SA + JA (1:1). 3 days after treatment, the plants were infected with P. infestans (105 spores / ml) and cultivated under artificial soil drought conditions by reducing irrigation. When soil moisture reached 40±5% (7 days after infection), biochemical parameters were assessed in plants. A decrease in the degree of leaves damage by P. infestans was revealed when treated with B. subtilis in combination with SA and JA. The mechanism of increasing the resistance of potato plants to late blight when treated with Bacillus subtilis bacteria in combination with signaling molecules under conditions of drought was associated with the accumulation of H2O2 and modulation of antioxidant enzymes activity.

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