Assessment of Salinity Tolerance Deploying Antioxidant Defense Systems in Gerbera Jamesonii

Uzma, Javeria; Talla, Sai Krishna; Madam, Ebenezer; Mamidala, Praveen

doi:10.13005/bbra/2982

Cited by 6 publications

(13 citation statements)

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“…The experiments in the present study were designed as a randomized complete block containing three treatment groups with three replicates per treatment: (a) Control (0 mM NaCl), (b) salt alone (200 mM NaCl) as per Uzma et al [7], and (c) salt + Spd (200 mM NaCl + 1.0 mM Spd). Before the design of the treatment groups, Spd concentration of 1.0 mM was standardized by treating G. jamesonii plants using a range of concentrations of Spd (0.25 mM, 0.50 mM, 0.75 mM, and 1.0 mM) and the resulting concentration of 1.0 mM was optimized (data not shown).…”

Section: Treatment With Nacl Followed By Exogenous Supplementation Of...mentioning

confidence: 99%

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Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Uzma¹,

Talla²,

Mamidala³

2023

J App Biol Biotech

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The present study was carried out to investigate the role of spermidine (Spd) in alleviating salinity stress in an ornamental plant, Gerbera jamesonii cv Bolus ex Hook. f. From our laboratory studies, we could establish that G. jamesonii plants grown in a polyhouse are hugely exposed to salts due to repeated fertigation and differ in their sensitivity toward salt stress. In the present study, we have assessed changes in the salinity tolerance levels across G. jamesonii genotypes when treated with exogenous supplementation of Spd. The sodium chloride (NaCl) sensitive (white), moderately sensitive (pink), and tolerant (yellow) G. jamesonii varieties were subjected to 200 mM NaCl treatment followed by an exogenous foliar spray of Spd (1.0 mM). Our findings revealed that Spd treatment increased leaf growth, soluble protein, proline, chlorophyll content and lowered lipid peroxidation, and hydrogen peroxide accumulation. Enhanced enzyme activities of superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase following treatment with Spd suggest its role in conferring salt tolerance in G. jamesonii genotypes. Supplementation of 1.0 mM Spd has drastically improved efficiency of photosynthesis by minimizing salt stress initiated cellular injury by scavenging highly reactive oxygen radicals.

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Section: Treatment With Nacl Followed By Exogenous Supplementation Of...mentioning

confidence: 99%

“…Increased demand for G. jamesonii across the globe has resulted in potential market value for floriculture both in domestic and international markets. The turnover of floriculture industry is estimated to be more than 8.2 billion USD (US dollars) in 2022 which is thought to be exponentially increasing [7].…”

Section: Introductionmentioning

confidence: 99%

Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Uzma¹,

Talla²,

Mamidala³

2023

J App Biol Biotech

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“…Gerberas are used as cut flowers and occupy fifth place in the world's floral trade exhibiting high sales around the year [2]. Although Gerbera is very popular in the floral industry, farmers to date have experienced huge losses due to its vulnerability to biotic and abiotic stress [3]. In view of the above, Gerbera growers prefer polyhouses which offer controlled conditions for sustainable production.…”

Section: Introductionmentioning

confidence: 99%

Ascorbic acid mediated Salt Tolerance in Gerbera jamesonii: A Promising Strategy for Sustainable Floriculture

Farooq,

Uzma,

Dayakar

et al. 2023

Preprint

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Cut flowers of Gerbera jamesonii, renowned globally for their vibrant colors and extended shelf life, play a pivotal role in the flourishing floriculture industry. However, repeated fertigation in nethouses/polyhouses poses a significant challenge leading to production losses. In response to this challenge, we hypothesized that the application of Ascorbic acid (AsA), an antioxidant, in optimal concentrations could alleviate the detrimental effects of salt toxicity and enhance Gerbera production. Our objective was to investigate the impact of exogenous AsA (1.0 mM, 2.0 mM, and 4.0 mM) as a foliar spray, followed by NaCl (200 mM) treatment, across two cultivars of Gerbera: white-flowered (salt sensitive) and yellow flowered (salt tolerant) cultivars. The research employed a comprehensive approach, applying AsA and NaCl treatment to evaluate their effects on chlorophyll, proline, and total soluble protein content, MDA, H2O2, and antioxidant enzyme activities (SOD, CAT, APX, GR, and POD). Following exposure to 2.0 mM AsA, treated plants displayed a notable increase in chlorophyll, Proline, and soluble protein content. Concurrently, MDA and H2O2 levels, indicator of intracellular damage, exhibited a decrement, suggesting AsA's protective role against salt stress. Moreover, enhanced antioxidant Enzyme activities were observed. The application of AsA (2.0 mM) not only induced salt tolerance in Gerbera but also showed potential benefits for its overall growth and development. This study underscores the promising role of AsA in mitigating salt-induced challenges in Gerbera cultivation.

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“…Gerbera which sensitive to abiotic/biotic stresses, is typically grown commercially in a controlled environment, such as a net or poly house. [23] Observed the effects of exposing all four Gerbera genotypes (Red, Yellow, Pink, and White) to a 200 mM NaCl concentration for 20 days. After conducting morphological observations, it was noticed that the White genotype showed more pronounced bleaching compared to the Red and Pink genotypes.…”

Section: Introductionmentioning

confidence: 99%

“…To preserve the aesthetic and commercial value of Gerbera, it is important to develop salt-tolerant varieties. [24], In a study conducted by [23] using an in vitro leaf disc approach, the salt sensitivity level of Gerbera was investigated by exposing it to varying NaCl concentrations (0-200 mM). The study also measured various anti-oxidative enzymatic and non-enzymatic defense systems, as well as MDA and chlorophyll content.…”

Section: Introductionmentioning

confidence: 99%

Effect of Salt Concentration on Three Cultivars of Gerbera jamesonii

Al-Saedi,

Al-Ameri

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The research was carried out in the laboratory for plant tissue culture, Department of Horticulture and Landscape Engineering, College of Agricultural Engineering Sciences, University of Baghdad, in 2021. First, Four Explants (seeds, roots, shoot-tips, and clumps), which were laboratory germinated from seeds of Gerbera jamesonii cultivars (red, white, and orange), were cultured after sterilizing with five concentrations (0, 10, 20, 30, and 50%) of bleach containing 6 % of sodium hypochlorite NaOCl to investigate the best concentration of the bleach, as well as the best Explant to be used for multiplication. Second, according to the results of the sterilization experiment, shoot tips were cultured in media containing the growth regulators NAA at four concentrations (0, 0.1, 0.3, and 0.5ppm) and BA at four concentrations (0, 1, 2, and 3 ppm) to find the best combination for obtaining the best result. The treatment BA3 NAA0.5 was superior, producing the highest number of leaves (37.2, 36.9, and 28.1) in the three cultivars (red, white, and orange, respectively). Third, four salt concentrations (0, 50, 100, and 150 mM) of NaCl were added to the culture media to investigate the plant salt tolerance. Results showed a decline in the number of leaves, as well as the weight of both fresh and dry leaves, affected by the salt concentration increase of all the three studied cultivars; however, the white cultivar was superior in tolerating salt compared to the other two cultivars.

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Assessment of Salinity Tolerance Deploying Antioxidant Defense Systems in Gerbera Jamesonii

Cited by 6 publications

References 58 publications

Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Ascorbic acid mediated Salt Tolerance in Gerbera jamesonii: A Promising Strategy for Sustainable Floriculture

Effect of Salt Concentration on Three Cultivars of Gerbera jamesonii

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