Seed biopriming with Parachlorella, Bacillus subtilis, and Trichoderma harzianum alleviates the effects of salinity in soybean.

Autor: da Silva DMM; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil., Santos CC; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil. cleber_frs@yahoo.com.br., Wagner FE; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil., Martins LOM; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil., Ozório JPA; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil., da Silva OA; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil., Ribeiro DM; Biotecland Tecnologias Agrícolas LTDA, Jataí, GO, Brazil., Scalon SPQ; Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Science, Federal University of Grande Dourados, Dourados, MS, Brazil.
Jazyk: angličtina
Zdroj: BMC plant biology [BMC Plant Biol] 2024 Nov 29; Vol. 24 (1), pp. 1149. Date of Electronic Publication: 2024 Nov 29.
DOI: 10.1186/s12870-024-05646-9
Abstrakt: Background: Seed conditioning with bioinputs (biopriming) offers a promising and sustainable alternative to mitigate the adverse effects of salt stress on soybeans. This study aims to evaluate the potential of isolated or combined biopriming using microalgae and different microorganisms in alleviating salinity-induced stress in soybeans in early-stage.
Methods: Seeds were subjected to five biopriming treatments: Parachlorella sp. microalgae culture, Bacillus subtilis, Trichoderma harzianum, Parachlorella sp. + B. subtilis, and Parachlorella sp. + T. harzianum, along with a control group without biopriming. Subsequently, the seeds were exposed to two conditions: (i) control (0.0 MPa), and (ii) salinity induced by NaCl (-0.8 MPa). Germination, photochemical indicators, and seedling performance were assessed.
Results: Salinity impaired root protrusion and seed physiology, resulting in a high percentage of abnormal seedlings, thus creating a stressful condition. However, biopriming alleviated the negative effects of salinity, particularly with T. harzianum, Parachlorella sp. + B. subtilis, and Parachlorella sp. + T. harzianum, which led to high germination rates and normal seedlings. All biopriming treatments, especially the combined ones, reduced the suppression of non-photochemical quenching, thereby enhancing the maximum yield of photosystem II. Seedlings under salt stress without biopriming exhibited short lengths and low fresh and dry mass, whereas those bioprimed with Parachlorella sp. + B. subtilis and Parachlorella sp. + T. harzianum showed significantly higher values.
Conclusion: Seed biopriming, especially with Parachlorella sp. microalgae culture combined with B. subtilis or T. harzianum, effectively alleviates the stressful effects of salinity on germination and early-stage growth seedling of soybeans.
Competing Interests: Declarations. Ethics approval and consent to participate: Not applicable. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests.
(© 2024. The Author(s).)
Databáze: MEDLINE
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