Strains of Bacillus spp. Regulate Wheat Resistance to Greenbug Aphid Schizaphis graminum Rond.

Веселова, С. В.; Бурханова, Г. Ф.; Rumyantsev, S. D.; Благова, Д. К.; Максимов, И. В.

doi:10.1134/s0003683819010186

Cited by 21 publications

(57 citation statements)

References 28 publications

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“…It was reported that Bt -induced resistance to R. solanacearum in tomato plants which was dependent on the SA signaling pathway and repressed JA-dependent mechanisms [ 40 ]. B. thuringiensis -induced plant defense against pathogens and pests is not clear yet [ 41 , 42 ].…”

Section: Discussionmentioning

confidence: 99%

“…In [ 10 ]’s study, when cucumber roots were treated with a cultural filtrate of hypovirulent Rhizoctonia sp., lignin content was increased after pathogen Colletotrichum orbiculare penetration in epidermal tissues of cucumber hypocotyls. It was shown that PGPB, in particular, Bacillus sp., are capable of stimulating lignin biosynthesis through activation of peroxidases and polyphenol oxidases in infected plants [ 41 , 45 , 51 ] or pest-damaged plants [ 11 , 42 ]. Genetically engineered plants of maize, expressing the Cry1Ab toxin, showed a higher ratio of lignin accumulation in vascular bundle sheaths and in the sclerenchyma cells near vascular bundles than wild type plants [ 52 ].…”

Section: Discussionmentioning

confidence: 99%

“…Artificial regulation of plant defense responses to herbivorous insects and pathogens, which frequently attack them simultaneously under field conditions, stands in need of continuous investigations. PGPB, including endophytic strains, could regulate SA- and JA-sensitive defense mechanisms in compliance with the type of damage or pathogen/pest attacks means [ 42 , 45 ]. Thus, the strain B. subtilis 26DCryChS is capable of stimulating both SA- and JA-dependent mechanisms in potato plants while host plants are under pest or pathogen attack.…”

Section: Discussionmentioning

confidence: 99%

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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

Sorokan

Benkovskaya

Бурханова

et al. 2020

Plants

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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.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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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

Sorokan

Benkovskaya

Бурханова

et al. 2020

Plants

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“…Conversely, the facultative aphid symbiont S. symbiotica enhances pea aphid feeding on barrel medic by promoting expression of a salivary protein (ApHRC) that limits ROS induction; silencing this protein increases ROS induction and decreases aphid feeding ( Wang et al, 2020 ). Treating plants with certain plant growth-promoting rhizobacteria also causes a faster, stronger oxidative response to aphids and decreases aphid population growth ( Rashid et al, 2017 ; Veselova et al, 2019 ); this finding is particularly exciting because it suggests a possible means of exploiting ROS for crop protection. Thus, manipulation of ROS levels in multiple plant–aphid interactions implicate ROS in plant defenses against aphids.…”

Section: Why? Effects Of Reactive Oxygen Species Accumulation On Resi...mentioning

confidence: 99%

Reactive Oxygen Species in Plant Interactions With Aphids

Goggin

Fischer

2022

Front. Plant Sci.

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Reactive oxygen species (ROS) such as hydrogen peroxide and superoxide are produced in plants in response to many biotic and abiotic stressors, and they can enhance stress adaptation in certain circumstances or mediate symptom development in others. The roles of ROS in plant-pathogen interactions have been extensively studied, but far less is known about their involvement in plant-insect interactions. A growing body of evidence, however, indicates that ROS accumulate in response to aphids, an economically damaging group of phloem-feeding insects. This review will cover the current state of knowledge about when, where, and how ROS accumulate in response to aphids, which salivary effectors modify ROS levels in plants, and how microbial associates influence ROS induction by aphids. We will also explore the potential adaptive significance of intra- and extracellular oxidative responses to aphid infestation in compatible and incompatible interactions and highlight knowledge gaps that deserve further exploration.

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“…With the cDNA as the template, PCR was performed with primers flanking conservative gene sites of the studied PR proteins in a TP4-PCR-01-Tertsik thermocycler (DNA-Technology, Russia). We used primers to genes encoding PR1 protein (TaPr1, AF384143) (Veselova et al, 2016), proteinase inhibitors (TaPI, EU293132.1), anionic peroxidase (TaPrx, TC151917), NADPH oxidase (TaRboh, HE674332) (Veselova et al, 2019), phenylalanine ammonia lyase (TaPAL, X99725) (Ding et al, 2011), and lipoxygenase (TaLOX, BJ223744) (Diallo et al, 2014). To calculate the normalized levels of genes expression, primers to the gene for constitutively expressed protein RNase inhibitor were used (RNase L inhibitor-like) (TaRLI, AY059462) (Veselova et al, 2016).…”

Section: Objects Of Researchmentioning

confidence: 99%

Induced resistance to the greenbug aphid Schizaphis graminum Rond. in species of the genus Triticum

Rumyantsev¹,

Веселова²,

Бурханова³

et al. 2019

Vestn. VOGiS

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The greenbug aphid Schizaphis graminum Rond. causes a significant loss of the grain harvest. Therefore, to improve plant resistance to aphids is one of the topical tasks. The problem of creating varieties resistant to phloem-feeding insects is quite urgent, since the mechanisms procuring the resistance of plants to insects are not fully understood. Nevertheless, modern literature describes some mechanisms associated with changes in the redox state of colonized plants. Besides, attention is being increasingly focused on the study of mechanisms that underlie inducible resistance to aphids in wheat and are regulated by hormonal signaling systems. To detect connections among the redox status, indicators of resistance (antibiosis and endurance) of wheat plants to the pest, and induction of the jasmonate (JA) and salicylate (SA) signaling pathways, we studied accessions of three species of wheat plants – Triticum aestivum L., T. monococcum., and T. timopheevii Zhuk.– infested with S. graminum greenbugs by physiological, biochemical, and molecular methods. Analysis of antibiosis and endurance showed that T. timopheevii k-58666 and T. monococcum k-39471 were resistant to S. graminum, the latter accession being the most enduring. High hydrogen peroxide contents and high peroxidase activities were detected in the resistant plants. We investigated the expression of genes encoding PR proteins, including markers and regulators of the salicylate (TaRboh, TaPAL, Tapr1, TaPrx) and jasmonate (TaPI, TaLOX, TaPrx) signaling pathways. At the early stage of infestation in the susceptible T. aestivum variety Salavat Yulaev, the expression of only jasmonate-dependent genes was activated in response to plant damage. In the resistant T. timopheevii accession k-58666, expression of only salicylate-dependent genes was activated, while the aphid reproduction was practically absent. In the resistant T. monococcum accession k-39471, expression was activated in both the salicylate-dependent and jasmonate-dependent gene groups. We assume that the oxidative burst in the resistant forms of wheat was induced via the activation of the SA signaling pathway, which was of crucial importance in the further cascade of chemical reactions leading to the development of resistance.

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Strains of Bacillus spp. Regulate Wheat Resistance to Greenbug Aphid Schizaphis graminum Rond.

Cited by 21 publications

References 28 publications

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

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

Reactive Oxygen Species in Plant Interactions With Aphids

Induced resistance to the greenbug aphid Schizaphis graminum Rond. in species of the genus Triticum

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