Ascorbic acid formulation for survivability and diazotrophic efficacy of Azotobacter chroococcum Avi2 (MCC 3432) under hydrogen peroxide stress and its role in plant-growth promotion in rice (Oryza sativa L.)

Kumar, Upendra; Kaviraj, Megha; Panneerselvam, P.; Priya, Himani; Chakraborty, Koushik; Swain, Padmini; Chatterjee, Sabyasachi; Sharma, Srigopal; Nayak, Pradipta K.; Nayak, AK

doi:10.1016/j.plaphy.2019.04.003

Cited by 14 publications

(5 citation statements)

References 47 publications

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“…Among antioxidant molecules, AsA has been reported to be one of the most sensitives to stressful conditions and it is often reported as a good marker of oxidative responses in fresh-cut leafy vegetables (Ferrante et al, 2009). Moreover, a recent study suggests an important role for AsA in controlling H2O2 accumulation during the application of a plant growth-promoting bacteria in rice (Kumar et al, 2019), so it is possible that AsA could play a similar role in case of romaine lettuce. Concerning the other treatments, it is interesting to notice, that at the end of storage, the lower oxidative stress incidence and the maximum vitamin C content was recorded in leaves from R16-treated plants.…”

Section: ) Discussionmentioning

confidence: 99%

Use of microbial inoculants during cultivation maintain the physiological, nutritional and technological quality of fresh-cut romaine lettuce

Passera

Vacchini

Shahzad

et al. 2021

Postharvest Biology and Technology

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Section: ) Discussionmentioning

confidence: 99%

Use of microbial inoculants during cultivation maintain the physiological, nutritional and technological quality of fresh-cut romaine lettuce

Passera

Vacchini

Shahzad

et al. 2021

Postharvest Biology and Technology

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“…NifH gene copy numbers were quantified and measured in Real-time polymerase chain reaction (RT-PCR) (QuantStudio® 5, Singapore) by the addition of an intercalating fluorescent dye SYBR® Premix Ex Taq™ (Takara Bio Inc., Japan). Quantitative PCR (qPCR) protocol was carried out using universal primer sets (in 10 μM concentration) nifH-R (5′TTGTTSGCSGCRTACATSGCCATCAT3′) andnifH-F(5′AAAGGYGGWATCGGYAARTCCA CCAC3′) [18,19] Quality of plasmid DNA was quantified and evaluated through Nano-3100 (Analytical®) spectrophotometer and sequenced thereafter. To evaluate and assess the copy number of nifH gene, plasmid DNA was diluted and a standard was prepared ranging from 3 × 10 1 to 3 × 10 8 copies.…”

Section: Quantification Of Nifh Gene Copy Number By Real-time Pcrmentioning

confidence: 99%

Study of Phytobeneficial Characterization and Biofertilizer Efficacy of Rhizobium Strain Isolated from Pulse Fields of Odisha

Priyadarshini

Mishra

2022

IJPSS

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Haphazard and indiscriminate application of chemical fertilizers has led to environmental contamination including deterioration of soil health. Hence it is very essential to inculcate biological agents in order to reduce the harsh effects of chemical fertilizer. The use of potent bacteria as a bio-fertilizer can improve the soil nitrogen status leading to enhanced soil health and improved productivity. Rhizobium provides a major source of nitrogen input in agricultural soils. On account of that, 64 bacteria were isolated and subjected to RT-PCR for nifH gene quantification to ascertain biological nitrification. From these 64, Seventeen potent PGP bacteria, isolated from different pulse fields, showing maximum PGP traits were studied further for nif H quantification. Out of 17, five were found to be possessing highest number of copy numbers of nifH gene indicating efficient nitrogenase activity. On molecular identification, it was revealed that except BS5JGS, rest all were belonging to the Enterobacteriaceae family. BS5JGS was found out to be Rhizobium sp., with an accession number assigned as OK602696. An array of organic acid production by the Rhizobium strain was estimated by HPLC, in which adipic acid was detected in highest concentration followed by tartaric acid, malonic acid, citric acid, ascorbic acid and phosphoric acid. The Rhizobial isolate was found to inhibit two most common fungal phyto-pathogens Fusarium oxysporum (ITCC 4998) and Rhizoctonia solani(ITCC 2060). It showed various phytobeneficial traits which imply it can be utilized as an effective biofertilizer for legumes and pulses as well as to maintain soil fertility and soil nutrient status.

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“…The higher activities of the antioxidant enzyme may account for the unchanged vitamin C content following UV-B treatment in this study (Figure 3b), since vitamin C can be used as substrates for the enzyme to scavenge active oxygen, protecting plant from the oxidative damage. 43 Although increasing evidences prove that plants respond to UV-B radiation through activation of the antioxidant defense system, the information about the response of underground organs to UV-B treatment is still limited. Based on the previous and our results, we propose that the aerial and underground parts of the whole plant likely respond to UV-B radiation coordinately and systematically.…”

Section: Effects Of Elevated Uv-b Radiation On Antioxidant Capacity In Tubersmentioning

confidence: 99%

Effects of low doses of UV-B radiation supplementation on tuber quality in purple potato (Solanum tuberosum L.)

Zhang

et al. 2020

Plant Signaling & Behavior

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UV-B is an important environmental factor that differentially affects plant growth and secondary metabolites. However, our knowledge regarding the physiological and biochemical changes in under-ground plant organs responded to UV-B treatment remains limited. In this study, we investigated potato plant (Solanum tuberosum L.) and tuber responses to short-term supplemental UV-B exposure performed during tuber development. Our results indicated that the supplemental UV-B radiation with relative low dose had no obvious adverse impact on plant growth or tuber production. Nutritional composition analyses of tubers revealed that the contents of starch, soluble sugars, and proteins were significantly increased under lower UV-B radiation relative to controls. Similarly, low dose of UV-B treatment promoted the health-promoting compounds, including anthocyanin, phenols, and flavonoids in tubers. Moreover, higher activities of antioxidant enzymes were significantly induced in tubers in response to lower UV-B radiation. These findings suggest that short-term UV-B radiation supplementation at relative low doses can improve the tuber quality in potato plants.

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Ascorbic acid formulation for survivability and diazotrophic efficacy of Azotobacter chroococcum Avi2 (MCC 3432) under hydrogen peroxide stress and its role in plant-growth promotion in rice (Oryza sativa L.)

Cited by 14 publications

References 47 publications

Use of microbial inoculants during cultivation maintain the physiological, nutritional and technological quality of fresh-cut romaine lettuce

Use of microbial inoculants during cultivation maintain the physiological, nutritional and technological quality of fresh-cut romaine lettuce

Study of Phytobeneficial Characterization and Biofertilizer Efficacy of Rhizobium Strain Isolated from Pulse Fields of Odisha

Effects of low doses of UV-B radiation supplementation on tuber quality in purple potato (Solanum tuberosum L.)

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