Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

Samad, Abdul; Shaukat, Kanval; ANSARI, MAHMOOD-UR-REHMAN; Nizar, Mereen; Zahra, Noreen; NAZ, AMBREEN; IQBAL, HAFIZ MUHAMMAD WALEED; Raza, Ali; PESIC, VLADAN; Djalović, Ivica

doi:10.32604/biocell.2023.023704

Cited by 6 publications

(3 citation statements)

References 53 publications

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“…Salinity has been shown to significantly reduce plant height, stem girth, biomass both above and below ground, and hinder leaf cell division [ 4 ]. Additionally, salt stress inhibits root growth [ 5 ], reduces root vigor, and its plant photosynthetic process is also greatly affected [ 6 ], which destroys chloroplast structure in the plant, increases the number of cysts and basal lamellae [ 7 ], and degrades chlorophylls and carotenoids. These changes affect the plant’s ability to carry out photosynthesis, which ultimately affects the plant’s dry matter accumulation and its yield [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Xu,

Wang,

Wang

et al. 2024

IJMS

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Salt stress seriously affects crop growth, leading to a decline in crop quality and yield. Application of exogenous substances to improve the salt tolerance of crops and promote their growth under salt stress has become a widespread and effective means. Eugenol is a small molecule of plant origin with medicinal properties such as antibacterial, antiviral, and antioxidant properties. In this study, tobacco seedlings were placed in Hoagland’s solution containing NaCl in the presence or absence of eugenol, and physiological indices related to stress tolerance were measured along with transcriptome sequencing. The results showed that eugenol improved the growth of tobacco seedlings under salt stress. It promoted carbon and nitrogen metabolism, increased the activities of nitrate reductase (NR), sucrose synthase (SS), and glutamine synthetase (GS) by 31.03, 5.80, and 51.06%. It also activated the enzymatic and non-enzymatic antioxidant systems, reduced the accumulation of reactive oxygen species in the tobacco seedlings, and increased the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) by 24.38%, 18.22%, 21.60%, and 28.8%, respectively. The content of glutathione (GSH) was increased by 29.49%, and the content of superoxide anion (O2−) and malondialdehyde (MDA) were reduced by 29.83 and 33.86%, respectively. Promoted osmoregulation, the content of Na+ decreased by 34.34, K+ increased by 41.25%, and starch and soluble sugar increased by 7.72% and 25.42%, respectively. It coordinated hormone signaling in seedlings; the content of abscisic acid (ABA) and gibberellic acid 3 (GA3) increased by 51.93% and 266.28%, respectively. The transcriptome data indicated that the differentially expressed genes were mainly enriched in phenylpropanoid biosynthesis, the MAPK signaling pathway, and phytohormone signal transduction pathways. The results of this study revealed the novel role of eugenol in regulating plant resistance and provided a reference for the use of exogenous substances to alleviate salt stress.

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Section: Introductionmentioning

confidence: 99%

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Xu,

Wang,

Wang

et al. 2024

IJMS

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“…Phytohormones are endogenous messenger molecules that regulate different defensive responses to several abiotic stresses, including heat and salinity [9,10]. Exogenous applications of plant hormones previous to or parallel with stress significantly recover stress-induced damage and enhance plant tolerance [11,12].…”

Section: Introductionmentioning

confidence: 99%

The role of γ-aminobutyric acid and salicylic acid in heat stress tolerance under salinity conditions in Origanum vulgare L.

Garoosi,

Sanjarian,

Chaichi

2023

PLoS ONE

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Origanum vulgare L., a medicinal and aromatic herb, has been used for hundreds of years. This plant contains valuable chemical compounds that can be used as medicine for treatment. On the other hand, a gradual increase in the planet’s average temperature could negatively affect the growth and the composition of the O. vulgare. For this reason, in this study, the effect of two protective compounds, namely salicylic acid (SA) and gamma-aminobutyric acid (GABA), on temperature and salinity stress conditions was investigated. Oregano plants were grown at 23/12°C temperature as control and 27/16°C heat stress in the greenhouse (16/8 h photoperiod) for one months. The plants were treated with GABA and SA and subjected to salt stress for 30 days. Subsequently, the plant’s physiological, biochemical, and phytochemical characteristics were examined. The results showed that all studied traits (in control and treated samples) were significantly different at 27°C, from 23°C. In addition, the highest amount of thymol and carvacrol were detected from plants grown at 27°C. In regards to salinity, stressed- plants had less damage to membrane stability and H2O2 level, when treated with GABA or SA. This study revealed that both SA and GABA compounds had an exellent protective effect on temperature and salt stress on O. vulgare. Based on enzyme-pigment evaluations and secondary metabolites, SA showed a better protective effect on temperature effects and GABA in a saline environment. In general, using these compounds can provide better conditions for the growth and preservation of O. vulgare chemical compounds. However, it certainly requires more experiments to find the signal pathways involved in these processes.

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“…In plant various morpho-physiological, and biochemical process are control by gibberellin such as, cell division, plants growth in height, elongation, rate of transpiration, flowering, and leaf expansion (24). Samad et al, (25) reported that PGRs application enhances the plant photosynthetic pigments efficacy, secondary metabolites contents and decreases hydrogen peroxide and MDA under salinity stress. Salicylic acid is plant growth regulator that consist of diverse phenolic compounds and aromatic ring synthesized in plants.…”

Section: Introductionmentioning

confidence: 99%

Impact of PGRS Priming on Germination and Seedling Parameters of Pea And Plantago under Artificial Magnetism

Nisa

Shaukat

Samad

et al. 2022

Pak Euro. J. Med & LS

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Seed priming is widely recognized as a significant phenomenon for synchronizing germination and enhancing the vigor of seeds. Seeking the importance of priming, the influence of magnetic treatments in overall performance of plants cannot be undermined as well. In the present study, seeds of Pisum sativum L. and Plantago ovata Forssk. were primed with essential Plant Growth Regulators (PGRs) such as; Gibberellic acid (GA3), Potassium nitrate (KNO3), Salicylic acid (SA), Ascorbic acid (AsA), Hydrogen peroxide (H2O2) in combination with different artificial magnetic treatment (North, South and N/S) to document morpho-physiological attributes. A lab experiment was conducted under Complete Randomized Design (CRD) which consisted of 6 seed priming treatment along with control (no-priming) each with three replications. Seeds were primed with water (H2O) and PGRs for 12 hours and the final harvest of seedlings was obtained for morpho-physiological analysis after 20 days of germination. Results portrayed statistically significant (p < 0.05) data by increasing the morphological characteristics (root/shoot length, number of leaves, root/shoot fresh weight and root/shoot dry weight). Similarly, photosynthetic pigments i.e., chl a and carotenoids recorded significant variations under artificial magnetism except chl b which showed non-significant (p > 0.05) variations. Results concluded that hydro priming and pre-soaking of seeds with essential PGRs are highly recommended to maximize the early germination, morpho-physiological performance in pea and plantago seedlings under artificial magnetism.

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Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

Cited by 6 publications

References 53 publications

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

The role of γ-aminobutyric acid and salicylic acid in heat stress tolerance under salinity conditions in Origanum vulgare L.

Impact of PGRS Priming on Germination and Seedling Parameters of Pea And Plantago under Artificial Magnetism

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