Role of Local Biofertilizer in Enhancing the Oxidative Stress Defence Systems of Date Palm Seedling (Phoenix dactylifera) against Abiotic Stress | Zendy

Oumaima Harkousse | Zendy; Slimani Afafe | Zendy; Issam Jadrane | Zendy; Mohamed Aitboulahsen | Zendy; Mouaad Amine Mazri | Zendy; Abdelmjid Zouahri | Zendy; Lahcen Ouahmane | Zendy; Tayeb Koussa | Zendy; Mohamed Najib Alfeddy | Zendy

Open Access

Role of Local Biofertilizer in Enhancing the Oxidative Stress Defence Systems of Date Palm Seedling (Phoenix dactylifera) against Abiotic Stress

Author(s) -

Oumaima Harkousse,

Slimani Afafe,

Issam Jadrane,

Mohamed Aitboulahsen,

Mouaad Amine Mazri,

Abdelmjid Zouahri,

Lahcen Ouahmane,

Tayeb Koussa,

Mohamed Najib Alfeddy

Publication year - 2021

Publication title -

applied and environmental soil science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.431

H-Index - 23

eISSN - 1687-7675

pISSN - 1687-7667

DOI - 10.1155/2021/6628544

Subject(s) - seedling , rhizobacteria , biology , catalase , horticulture , biofertilizer , glutathione reductase , inoculation , abiotic component , abiotic stress , symbiosis , point of delivery , agronomy , botany , oxidative stress , bacteria , rhizosphere , glutathione peroxidase , ecology , biochemistry , genetics , gene

Among the abiotic stresses, drought is the first environmental stress responsible for a decrease in agricultural production worldwide; it affects plants in various ways, including slowing down plant growth and disrupting its general physiology. Arbuscular mycorrhizal symbiosis and plant growth-promoting rhizobacteria (PGPR) are considered to be the bioameliorators of the plant’s resistance to water stress. The present study investigated the effects of inoculation with arbuscular mycorrhizal fungi (AMF) and PGPR on the water status and antioxidant enzyme activities of date palm seedlings grown under water stress conditions. The parameters related to the plant’s water status were significantly ( p < 0.05 ) higher in the plants treated with mycorrhizae and mycorrhizae + bacteria compared with their respective controls, especially under water stress conditions. The maximum proline content was obtained in plants inoculated with the AMF species and PGPR (combined) under severe water stress conditions reaching a value of 2.588 ± 0.034 in 25% field capacity, compared with 0.978 ± 0.024 for the control. In addition, the inoculated seedlings showed notably lower activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), and glutathione S-transferase (GST) in response to severe water stress compared with nonmycorrhizal seedling. Overall, the arbuscular mycorrhizal symbiosis and PGPR bacteria inoculation could be promising methods to enhance date palm resistance against oxidative stress.

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