Induced defense response in wheat plants against Bipolaris sorokiniana following application of Bacillus safensis and Ochrobactrum pseudogrignonense

Sarkar, Jayanwita; Chakraborty, Usha; Chakraborty, B. N.

doi:10.1007/s42360-018-0006-2

Cited by 15 publications

(6 citation statements)

References 36 publications

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“…2018), and also, initiation of systemic resistance induced in plants is associated with increasing the activity of defence‐related enzymes such as polyphenol oxidase, chitinases, β‐1,3‐glucanase, PAL, peroxidases and pathogenesis‐related proteins (PR) (Sarkar et al . 2018; Bagheri et al . 2021).…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, increases in activity levels of PPO, CAT, glucanase and phenolic compounds was observed in resistant wheat cultivars. In this regard, there are reports indicating that activity of antioxidant enzymes increases to neutralize oxidative stress when plants are infected by pathogens (Noctor et al 2018), and also, initiation of systemic resistance induced in plants is associated with increasing the activity of defence-related enzymes such as polyphenol oxidase, chitinases, b-1,3-glucanase, PAL, peroxidases and pathogenesis-related proteins (PR) (Sarkar et al 2018;Bagheri et al 2021). Furthermore, in support of our results, Naz et al (2018) reported incremental changes in the activity of PPO, POD and CAT in wheat infected with B. sorokiniana, as found by Li et al (2021) in moderately susceptible wheat lines, Noctor et al (2018) on resistant barley and Kaur et al (2021) in simultaneous reduction of H 2 O 2 content, the main enzyme inhibitor pathway of reactive oxygen species (ROS) in plants, including PPO, CAT, glutathioneascorbate and glutathione-peroxidase cycle in leaves of plants infected with B. sorokiniana.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to regulation of resistance genes, antioxidant enzymes involved in resistance processes also play a significant role in plant resistance to pathogen invasion (Nasr-Esfahani et al 2020;Moghaddam et al 2020;Bagheri et al 2021;Sadeghpour et al 2022). Initiation of systemic resistance in plants is associated with increasing the activity of defencerelated enzymes, such as polyphenol oxidase, chitinases, b-1,3glucanases, PAL, peroxidases and pathogenesis-related proteins (PR) (Sarkar et al 2018;Bagheri et al 2021). There are also reports on incremental changes in activity of a few enzymes in wheat infection with B. sorokiniana (Rios et al 2017), andLi et al (2021) reported increased activity of similar antioxidant enzymes in moderately susceptible wheat.…”

Section: Introductionmentioning

confidence: 99%

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Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

et al. 2022

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In common root and crown rot (CRR), Bipolaris sorokiniana (Sace.) is one of the important in wheat, causing considerable yield losses globally. Sources of resistance can provide a feasible and effective method of control for plant disease management. However, knowledge on mechanisms of resistance is scarce.• We screened 33 wheat genotypes against B. sorokiniana under greenhouse and field conditions. In addition, real-time quantitative PCR (qPCR) analysis using ten novel candidate gene markers, Cre3, EDS1, LTP5, PGIP, PR-1, PIEP1, TLP, UGT, Stb6 and PFT, was conducted on leaves and roots, along with changes in activity of antioxidant enzymes, peroxidase, catalase, b-1,3-glucanase, and phenolic content for their involvement in disease impact mechanisms.• Lowest disease severity was in 'Alvand', followed by 'Baharan' and 'Bam' as resistant genotypes. Quantitative gene expression showed that, although the candidate defence genes were upregulated 1.24-to 3.5-fold in wheat roots and leaves inoculated with B. sorokiniana, they were highly regulated in resistant varieties 'Alvand', 'Mehregan' and 'Bam'. Cre3, a resistance gene to cereal cyst nematode Heterodera filipjevi, was regulated in cultivars resistant to B. sorokiniana. Similar results were obtained for Stb6, a gene resistant to Septoria tritici blotch, EDS1 resistant to powdery mildew, Blumeria graminis, and the genes PR-1 and UGT resistant to leaf rust, Puccinia triticina. Antioxidant enzyme activity also showed the highest increases in resistant genotypes.• In conclusion, the T. aestivum-B. sorokiniana interaction in resistant wheat cultivars uses defence-related genes and enzymes that protect wheat towards sustainable development. Further such studies will shed light on simultaneous resistance to other diseases in wheat cultivars.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

et al. 2022

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“…The mechanisms of actions of the antagonistic bacterial strain were through colonizing the wheat phyllosphere and the antimicrobial compounds produced by the bacterium. Additionally, B. safensis and Ochrobactrum pseudogrignonense have been reported to promote resistance to spot blotch in wheat ( Sarkar et al., 2018 ). However, the efficacy of biocontrol agents is usually limited by environmental factors and growing conditions.…”

Section: Spot Blotchmentioning

confidence: 99%

Bipolaris sorokiniana-Induced Black Point, Common Root Rot, and Spot Blotch Diseases of Wheat: A Review

Al-Sadi

2021

Front. Cell. Infect. Microbiol.

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Wheat is among the ten top and most widely grown crops in the world. Several diseases cause losses in wheat production in different parts of the world. Bipolaris sorokiniana (teleomorph, Cochliobolus sativus) is one of the wheat pathogens that can attack all wheat parts, including seeds, roots, shoots, and leaves. Black point, root rot, crown rot and spot blotch are the main diseases caused by B. sorokiniana in wheat. Seed infection by B. sorokiniana can result in black point disease, reducing seed quality and seed germination and is considered a main source of inoculum for diseases such as common root rot and spot blotch. Root rot and crown rot diseases, which result from soil-borne or seed-borne inoculum, can result in yield losses in wheat. Spot blotch disease affects wheat in different parts of the world and cause significant losses in grain yield. This review paper summarizes the latest findings on B. sorokiniana, with a specific emphasis on management using genetic, chemical, cultural, and biological control measures.

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“…Several antagonistic strains (e.g., Trichoderma harzianum, Bacillus subtilis, Ochrobactrum pseudogrignonense, Pseudomonas mediterranea, etc.) inhibiting B.sorokiniana have been reported and these strains obtained by screening from soil are considered secure for the growing environment and mammals [14][15][16][17][18]. Among them, Bacillus are considered the greatest potential to be developed as a biocide because of its broad-spectrum antibacterial properties and significant growth-promoting effect.…”

Section: Of 16mentioning

confidence: 99%

Antagonistic Strain <em>Bacillus Halotolerans</em> JK-25 Mediate the Biocontrol of Wheat Common Root Rot Caused by <em>Bipolaris Sorokiniana </em>

Kang¹,

Zhang²,

Niu³

et al. 2023

Preprint

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Common root rot caused by Bipolaris sorokiniana infestation of wheat is one of the main reasons of yield reduction in wheat crops worldwide. In current study, strain JK-25 was isolated from soil of wheat rhizosphere and identified as Bacillus halotolerans based on morphological, physiological, biochemical characteristics and molecular identification. The strain showed significant antagonism to B.sorokiniana and broad-spectrum resistance to Fusarium oxysporum, Fusarium graminearum and Rhizoctonia zeae. Inhibition of Bipolaris sorokiniana mycelial dry weight and spore germination rate by JK-25 fermentation supernatant reached 60% and 88% respectively. The crude extract of JK-25 was found by MALDI-TOF-MS to contain the surfactin that exerted an inhibitory effect on B.sorokiniana. The disruption of mycelial cell membranes was observed under microscopy (LSCM) after treatment of B.sorokiniana mycelium with the crude extract. The antioxidant enzyme activity of B.sorokiniana was significantly reduced and the oxidation product MDA content increased after treatment with the crude extract. The incidence of root rot was significantly reduced in pot experiments with the addition of JK-25 culture ferment, which had a significant biological control effect of 72.06%. Its ability to produce siderophores may help to promote wheat growth, and the production of proteases and pectinases may also be part of the strain's role in suppressing pathogens. These results demonstrate the excellent antagonistic effect of JK-25 against B.sorokiniana and suggest that this strain has great potential as a resource for biological control of wheat root rot strains.

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Induced defense response in wheat plants against Bipolaris sorokiniana following application of Bacillus safensis and Ochrobactrum pseudogrignonense

Cited by 15 publications

References 36 publications

Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

Bipolaris sorokiniana-Induced Black Point, Common Root Rot, and Spot Blotch Diseases of Wheat: A Review

Antagonistic Strain <em>Bacillus Halotolerans</em> JK-25 Mediate the Biocontrol of Wheat Common Root Rot Caused by <em>Bipolaris Sorokiniana </em>

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