Combination Effect Between Lead and Salinity on Anatomical Structure of Date Palm Phoenix dactylifera L. Seedlings

Al-Aradi, Haleemah J.; Al-Najjar, Mohammed Abdul Al-Ameer; Awad, Khairullah M.; Abass, Mohammed H.

doi:10.17503/agrivita.v42i3.2511

Cited by 2 publications

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“…Even though Se modulated the root architecture of A. imperialis plants, this metalloid did not interfere with the roots' anatomical traits. Plants under stress promoted by an element (e.g., cadmium, zinc, lead, and sodium) in contact with the roots may show alterations in thickness of the endodermis and/or a number of xylem vessels (Rodrigues et al 2017, Al-Aradi et al 2020, Baroni et al 2020. The endodermis has a protective function because it acts as an apoplastic barrier controlling the radial transport of water and ions, to reduce the entry of contaminants from the surroundings to the vascular cylinder (Rodrigues et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Martins¹,

Moreira²,

Braga³

et al. 2021

Photosynt.

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Ft -fluorescence at time t after the beginning of actinic illumination; FV/F0 -ratio of the de-excitation rate constants for photochemical and nonphotochemical events; OEC -oxygen-evolving complex; PItotal -total performance index, which measures the performance up until the final electron acceptors of PSI; RC/CSm -total number of PSII active reaction centers; Sm/tFmax -average fraction of open RC in the period of 0 to tFmax (time of maximum fluorescence production); VI -relative variable fluorescence at 30 ms (step I); VJ -relative variable fluorescence at 2 ms (step J); VK -relative variable fluorescence at 0.3 ms (step K); WK -the damage to OEC; WL -indicates disturbance in the thylakoid membranes, reducing the energetic connectivity between the PSII units; δR0 -efficiency/probability with which an electron from the intersystem electron carriers moves to reduce end electron acceptors at the PSI acceptor side (RE); φD0quantum yield of energy dissipation (at t = 0); φE0 -quantum yield of electron transport (at t = 0); φP0 = FV/Fm -maximum quantum yield of primary photochemistry of PSII reaction center (at t = 0); φR0 -quantum yield of reduction of end electron acceptors at the PSI acceptor side (RE); ψR0 -efficiency/probability by which electrons move from PSII to the PSI acceptor side.

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Section: Discussionmentioning

confidence: 99%

Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Martins¹,

Moreira²,

Braga³

et al. 2021

Photosynt.

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show abstract

“…Date palm (Phoenix dactylifera L.) is an economically significant crop cultivated in arid and semiarid regions worldwide due to its nutritional value and commercial importance (Al-Alawi et al, 2017;Al-Aradi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Biochemical Responses of Date Palm Phoenix dactylifera L. to Combined Stress of Salinity and Nickel

Gabash,

Resan,

Awad

et al. 2024

Basrah J. Agric. Sci.

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This study examined the effects of nickel (Ni) at 0, 25, and 50 mg.L-1 concentrations, applied alone or in combination with salinity (represented by NaCl at 0, 100, and 200 mM concentrations), on the biochemical traits of date palm. Hydrogen peroxide (H2O2), malondialdehyde (MDA), membrane stability index (MSI), peroxidase (POD) activity, superoxide dismutase (SOD), and proline content were among the parameters evaluated. The results revealed significant effects of nickel and salinity on the studied biochemical markers. Nickel at 50 mg.L-1 significantly increased H2O2 (0.87 µmol. L-1) and MDA (2.46 nmol.g-1) levels, while decreasing MSI (75.85%). Moreover, it enhanced POD (25.09 U.min-1.g-1) and SOD (3.78 U. min-1.g-1) activity, as well as proline content (4.35 µmol.g-1). Salinity at 200 mM significantly increased H2O2 (0.90 µmol L-1) and MDA (2.54 nmol.g-1) levels, decreased MSI (77.69%), and increased POD (27.61 U. min-1.g-1) and SOD (3.77 U.min-1.g-1) activity, along with increased proline content (4.54 µmol.g-1). Additionally, the combined application of nickel and salinity, particularly at higher concentrations, resulted in significantly increased biochemical responses compared to individual treatments. The findings highlight the interactive effects of nickel and salinity on the oxidative and antioxidant mechanisms in date palm plants. This study contributes to our understanding of plant responses to abiotic stressors and provides insights for optimizing date palm cultivation under challenging environmental conditions.

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Combination Effect Between Lead and Salinity on Anatomical Structure of Date Palm Phoenix dactylifera L. Seedlings

Cited by 2 publications

References 0 publications

Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Biochemical Responses of Date Palm Phoenix dactylifera L. to Combined Stress of Salinity and Nickel

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