Management of Fusarium wilt of tomato by soil amendment with Cenchrus pennisetiformis under chromium stress

Khurshid, Saba; Shoaib, Amna; Javaid, Arshad; Akhtar, Fozia; Shafiq, Muhammad; Qaisar, Uzma

doi:10.1016/j.pmpp.2016.12.002

Cited by 12 publications

(21 citation statements)

References 37 publications

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“…Babu et al (2015) also documented that tomato plants treated with antagonistic bacteria showed improved resistance against early blight, which was associated with increased synthesis of antioxidant enzymes (CAT, POX, and PPO). POX activity also increased rigidity of plant cell wall by synthesizing cell-wall polymers (lignin and suberin), and elevation in POX further indicated its role as physical barriers against pathogen stress (Khurshid et al 2017). Increase in activity of PPO after incorporation of bio fungicides may signify its importance in plant defense by oxidizing phenolic compounds into quinones that could create toxic environment for pathogen and could react with it.…”

Section: Discussionmentioning

confidence: 99%

Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Sharf

Javaid

Shoaib

et al. 2021

Egypt J Biol Pest Control

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Background Sclerotium rolfsii is a soil-borne fungal pathogen causing diseases in more than 500 plant species. It causes southern blight disease in chili. Chemical fungicides are used to control this disease, which also pollute the environment. The present study was designed to assess the potential of two species of plant-growth-promoting rhizobacteria (PGPR) viz. Bacillus megaterium and Pseudomonas fluorescence, and an allelopathic weed, Anagallis arvensis L., for the control of southern blight disease of chili. Results Initially, three PGPR strains, viz. B. megaterium OSR3, B. megaterium ZMR6, and P. fluorescence PF-097, were selected for their in vitro antagonistic assessment against S. rolfsii by dual culture technique on potato dextrose agar medium. OSR3 showed the highest antagonistic potential (68%), followed by PF-097 (54%) and ZMR6 (33%). In a pot experiment, the two best strains of PGPR, namely OSR3 and PF-097, and dried biomass of A. arvensis (DBA) in different concentrations (1, 2 and 3%) were used to manage southern blight disease of chili. In positive control treatment (S. rolfsii only), plant survival was low (73%) than the negative control (100%). OSR3, PF-097, OSR3 + 2% DBA, and PF-097 + 2% DBA significantly enhanced plant survival over positive control. The highest increase in chili growth over positive control was recorded due to OSR3, followed by PF-097 inoculations. Contents of carotenoid and chlorophyll were significantly decreased due to the fungal pathogen and improved due to PGPR strains. Application of the two PGPR strains and different concentrations of A. arvensis distinctly increased the catalase (CAT), peroxidase (POX), and polyphenol peroxidase (PPO) activities over positive control. Conclusions The present study concluded that PGPR strains B. megaterium OSR3 and P. fluorescence PF-097 can control southern blight disease effectively and increase growth and yield of chili.

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Section: Discussionmentioning

confidence: 99%

Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Sharf

Javaid

Shoaib

et al. 2021

Egypt J Biol Pest Control

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“…An increase in total protein content may specify mash bean plant could withstand a stressed environment 24 47 . Furthermore, greater intensity of protein bands at 37-50 kDa (PR-2 family) in plants is responsible for inhibiting fungal growth through the disintegration of cell wall chitin and glucagon 24 . By contrast, the expression level of the said bands decreased in Cu + MP might be due to the cross-tolerance mechanisms, and normalized in 2% FYM + Cu + MP possibly due to the enhancement of a plant's resistance against stresses.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…The Cu solutions (50 and 100 mg/kg) for spiking were prepared with the soil's saturation/water holding capacity from CuSO 4 . 5H 2 O, and the soil was spiked by spraying an aqueous solution of Cu with the continuous turning of the soil and left for 15 days for drying 24 . Decomposed 2% FYM was mixed in the measured amount of sterilized, sieved metal spiked soil, lled in pots (7 × 6 h × w, 5 kg/pot), and left for another 4 days.…”

Section: Methodsmentioning

confidence: 99%

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Farmyard manure regulated the defense signalling network in mash bean by countering stress responses of inglorious couple of charcoal rot fungus and copper

Akhtar

Shoaib

Javiad

et al. 2023

Preprint

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In the era of global warming, stress combinations instead of individual stresses are realistic threats faced by plants, which affect the metabolic activities in an inimitable mode unlike individual stress. In the current study, charcoal rot disease stress caused by notorious fungal pathogen viz., Macrophomina phaseolina (Tassi) Goid coupled with toxic levels of heavy metal copper (Cu) was investigated on morpho-physio-biochemical and molecular responses in mash bean [Vigna mungo (L.) Hepper] plants. Soil application with 2% Farmyard manure (FYM) was also used as a warfare agent against the stress/s responses in the plans. Therefore, soil spiked Cu (50 and 100 mg/kg) was inoculated with the pathogen, amended with 2% FYM was sown with mash bean seeds. The individual stress of MP or Cu resulted in more drastic changes in biological (growth, biomass, and yield), and physio-biochemical [(total chlorophyll content, carotenoids, reducing sugar total protein content, and total phenolic, catalase (CAT), peroxidase (POX) and polyphenol oxidase (PPO)] attributes with the greater translocation factors and bioaccumulation factors as compared to stress combination. The expression levels of catalase, ascorbate peroxidase, cytokinin-resistant gene as well as protein profiling and other metabolic changes (activity of CAT, POX, and PPO) were more up regulated under single stress conditions by mash bean plants. Alteration in studied parameters in mash bean plants provided the basis of cross-tolerance (hormesis) induced by Cu against the pathogen under stress combination. Nonetheless, 2% FYM in soil encounters the negative effect of stress responses provoked by the pathogen, Cu or both by decreasing Cu uptake by the plants. FYM worked better at lower concentrations (50 mg/kg) of Cu than at higher ones (100 mg/kg), hence could be used as a suitable option to reclaim soil health and better plant productivity.

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“…However, due to bad impact of synthetic chemicals on atmosphere, development of resistant mutants, more expensive pesticides and many health hazards (Westlund et al, 2018), such agrochemicals should be replaced with environmental friendly natural compounds . Numerous recent studies have shown that crude plant extract and isolated purified compounds from plants have tremendous potential in management of fungal plant pathogens Karim et al, 2017;Khurshid et al, 2017).…”

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confidence: 99%

Bioactive Constituents of Shoot Extracts of Sisymbrium irio L. Against Fusarium oxysporum f. sp. cepae

2020

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The present study was carried out to check the antifungal potential of Sisymbrium irio L. shoot extract against Fusarium oxysporum f. sp. cepae (FOC). In preliminary bioassays, different concentrations (1 to 5%) of leaf, stem and fruit extracts were evaluated against FOC. All the extracts were effective against the pathogen. However, the leaf extract was found the most effective causing 25-41% decrease in FOC biomass. The fractionation of methanolic leaf extract was done by two organic solvents namely n-hexane and chloroform. Different concentrations (1.56 to 200 mg mL-1) of these fractions were tested against FOC. The n-hexane and chloroform fractions showed inhibitory activity against the pathogen and resulted in 77-93% and 80-96% reduction in biomass of FOC, respectively. GC-MS analysis showed the presence of 24 compounds in n-hexane and 4 compounds in chloroform fraction. In n-hexane fraction, β-sitosterol (18.64%) was the most abundant compound followed by orotic acid, bis(tert-butyldimethylsilyl)-, tert-butyldimethylsilyl ester (12.18%), 10-octadecenoic acid, methyl ester (7.90%) and 1,2-benzenedicarboxylic acid, diisooctyl ester (6.05%). Major compounds identified in chloroform fraction were 1,3-benzenedicarboxylic acid, bis(2-ethylhexyl) ester (50.82%) and di-n-octyl phthalate (33.00%). This study concludes that n-hexane and chloroform fractions of methanolic leaf extract of S. irio contain potent antifungal constituents for the management of FOC.

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Management of Fusarium wilt of tomato by soil amendment with Cenchrus pennisetiformis under chromium stress

Cited by 12 publications

References 37 publications

Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Farmyard manure regulated the defense signalling network in mash bean by countering stress responses of inglorious couple of charcoal rot fungus and copper

Bioactive Constituents of Shoot Extracts of Sisymbrium irio L. Against Fusarium oxysporum f. sp. cepae

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