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Alleviation of drought stress damages by melatonin and Bacillus thuringiensis associated with adjusting photosynthetic efficiency, antioxidative system, and anatomical structure of Glycine max (L.).
Al-Shammari, Wasimah B; Abdulkreem Al-Huquil, Arwa; Alshammery, Kholoud; Lotfi, Salwa; Altamimi, Haya; Alshammari, Abeer; Al-Harbi, Nadi Awad; Rashed, Afaf Abdullah; Abdelaal, Khaled.
Afiliación
  • Al-Shammari WB; Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail, 55476, Saudi Arabia.
  • Abdulkreem Al-Huquil A; Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
  • Alshammery K; Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail, 55476, Saudi Arabia.
  • Lotfi S; Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail, 55476, Saudi Arabia.
  • Altamimi H; Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail, 55476, Saudi Arabia.
  • Alshammari A; Department of Biology, College of Science, University of Hail, P.O. Box 2440, Hail, 55476, Saudi Arabia.
  • Al-Harbi NA; Biology Department, University College of Tayma, University of Tabuk, P.O. Box 741, Tabuk, Saudi Arabia.
  • Rashed AA; Biology Department, College of Applied Sciences, Umm Al-Qura University, Makkah, 24382, Saudi Arabia.
  • Abdelaal K; EPCRS Excellence Center, Plant Pathology and Biotechnology Lab., Faculty of Agriculture, Kafrelsheikh University, 33516, Egypt.
Heliyon ; 10(14): e34754, 2024 Jul 30.
Article en En | MEDLINE | ID: mdl-39149001
ABSTRACT
These experiments were performed to study the effect of exogenous treatment with melatonin at 100 µM and seed treatment with Bacillus thuringiensis (106-8 CFU/cm3) on growth, physio-biochemical characters, antioxidant enzymes, and anatomical features of soybean plants cv. Giza 111 under drought conditions. The findings showed that leaves number, nodules number, branches number, relative water content (RWC), chlorophyll content, and maximum quantum efficiency of PSII (Fv/Fm) were significantly reduced in soybean under drought stress. In addition, anatomical structure of stems and leaves were negatively affected in stressed plants. Moreover, proline, electrolyte leakage (EL%) lipid peroxidation (MDA), superoxide (O2 ·-), hydrogen peroxide (H2O2), and antioxidant enzymes, such as catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), were significantly increased under drought stress. However, application of melatonin or Bacillus caused an improvement in growth characters, such as branches number, and increased chlorophyll a and b content, RWC as well as Fv/Fm in drought stressed soybean plants. Furthermore, melatonin and Bacillus treatments showed a significant decrease in EL%, MDA, O2 ·- and H2O2, besides regulating the activity of antioxidant enzymes under drought stress. The stems and leaves anatomical structure, such as lamina thickness, lower and upper epidermis thickness, number of xylem vessels/bundle, stem diameter, xylem vessels diameter, and phloem thickness, were improved under drought conditions with melatonin and Bacillus treatments. Therefore, the outcomes of this investigation recommended the use of melatonin as foliar spray and Bacillus thuringiensis as seed treatment, which could regulate a number of stress-responsive mechanisms to protect the stressed soybean plants, improve their growth under drought stress.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: Arabia Saudita Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: Arabia Saudita Pais de publicación: Reino Unido