Abiotic resistance inducers for management of bacterial wilt in tomato (Solanum lycopersicum L.)

Sood, Deepika; Sharma, Monica; Sharma, Amit

doi:10.1007/s42161-023-01322-3

J Plant Pathol

2023

DOI: 10.1007/s42161-023-01322-3

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Abiotic resistance inducers for management of bacterial wilt in tomato (Solanum lycopersicum L.)

Deepika Sood

Monica Sharma

Amit Sharma

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2024

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Cited by 2 publications

References 27 publications

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Cold atmospheric plasma enhances morphological and biochemical attributes of tomato seedlings

Sultan,

Yousef,

Ali

et al. 2024

BMC Plant Biol

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Cold atmospheric plasma (CAP) is a physical technology with notable effects on living organisms. In the present study, tomato seeds (Solanum lycopersicum var. Bassimo Mill.) were exposed to CAP for various time intervals, ranging from 1 to 5 min, in both continuous and intermittent periods, and were compared with a control group that received no CAP treatment. Seedlings grown from treated seeds exhibited improvements in levels of growth traits, photosynthetic pigments, and metabolite contents when compared to the control group. Seedlings from seeds treated with S04 displayed significant increases in shoot and root lengths, by 32.45% and 20.60% respectively, compared to the control group. Moreover, seedlings from seeds treated with S01 showed a 101.90% increase in total protein, whereas those treated with S02 experienced a 119.52% increase in carbohydrate content. These findings highlight the substantial improvements in growth characteristics, photosynthetic pigments, and metabolite levels in seedlings from treated seeds relative to controls. Total antioxidant capacity was boosted by CAP exposure. The activities of enzymes including superoxide dismutase, catalase, and peroxidases were stimulated by S02 and exceeded control treatment by (177.48%, 137.41%, and 103.32%), respectively. Additionally, exposure to S04 increased the levels of non-enzymatic antioxidants like flavonoids, phenolics, saponins, and tannins over the control group (38.08%, 30.10%, 117.19%, and 94.44%), respectively. Our results indicate that CAP-seed priming is an innovative and cost-effective approach to enhance the growth, bioactive components, and yield of tomato seedlings.

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Cold atmospheric plasma enhances morphological and biochemical attributes of tomato seedlings

Sultan,

Yousef,

Ali

et al. 2024

BMC Plant Biol

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Resistance in Soybean Against Infection by Phakopsora pachyrhizi Is Induced by a Phosphite of Nickel and Potassium

Fontes,

Silva,

Picanço

et al. 2024

Plants

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Soybean (Glycine max (L.) Merr.) is one of the most profitable crops among the legumes grown worldwide. The occurrence of rust epidemics, caused by Phakopsora pachyrhizi, has greatly contributed to yield losses and an abusive use of fungicides. Within this context, this study investigated the potential of using a phosphite of nickel (Ni) and potassium (K) [referred to as induced resistance (IR) stimulus] to induce soybean resistance against infection by P. pachyrhizi. Plants were sprayed with water (control) or with IR stimulus and non-inoculated or inoculated with P. pachyrhizi. The germination of urediniospores was greatly reduced in vitro by 99% using IR stimulus rates ranging from 2 to 15 mL/L. Rust severity was significantly reduced from 68 to 78% from 7 to 15 days after inoculation (dai). The area under the disease progress curve significantly decreased by 74% for IR stimulus-sprayed plants compared to water-sprayed plants. For inoculated plants, foliar concentrations of K and Ni were significantly higher for IR stimulus treatment than for the control treatment. Infected and IR stimulus-sprayed plants had their photosynthetic apparatus (a great pool of photosynthetic pigments, and lower values for some chlorophyll a fluorescence parameters) preserved, associated with less cellular damage (lower concentrations of malondialdehyde, hydrogen peroxide, and anion superoxide) and a greater production of phenolics and lignin than plants from the control treatment. In response to infection by P. pachyrhizi, defense-related genes (PAL2.1, PAL3.1, CHIB1, LOX7, PR-1A, PR10, ICS1, ICS2, JAR, ETR1, ACS, ACO, and OPR3) were up-regulated from 7 to 15 dai for IR stimulus-sprayed plants in contrast to plants from the control treatment. Collectively, these findings provide a global picture of the enhanced capacity of IR stimulus-sprayed plants to efficiently cope with fungal infection at both biochemical and physiological levels. The direct effect of this IR stimulus against urediniospores’ germination over the leaf surface needs to be considered with the aim of reducing rust severity.

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Abiotic resistance inducers for management of bacterial wilt in tomato (Solanum lycopersicum L.)

Cited by 2 publications

References 27 publications

Cold atmospheric plasma enhances morphological and biochemical attributes of tomato seedlings

Cold atmospheric plasma enhances morphological and biochemical attributes of tomato seedlings

Resistance in Soybean Against Infection by Phakopsora pachyrhizi Is Induced by a Phosphite of Nickel and Potassium

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