Biofertilizing Effect of Soil Cyanobacterium Anabaena cylindrica –Based Formulations on Wheat Growth, Physiology, and Soil Fertility

Zineb Hakkoum, Farah Minaoui, Amer Chabili, Mountasser Douma, Khadija Mouhri and Mohammed Loudiki ()
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Zineb Hakkoum: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco
Farah Minaoui: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco
Amer Chabili: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco
Mountasser Douma: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco
Khadija Mouhri: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco
Mohammed Loudiki: Laboratory of Water, Biodiversity and Climate Change, Phycology, Biotechnology and Environmental Toxicology Research Unit, Department of Biology, Faculty of Sciences Semlalia Marrakech, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco

Agriculture, 2025, vol. 15, issue 2, 1-20

Abstract: Cyanobacteria are well known for their biofertilizing capacities, which can enhance soil fertility and plant growth. This study aims to evaluate the biofertilizing effects of the indigenous nitrogen-fixing soil cyanobacterium Anabaena cylindrica on the growth, biochemical, and physiological responses of wheat, as well as soil fertility. Medium filtrate, aqueous extract, sonicated culture, and crude culture of A. cylindrica at different doses (50%, 25%, 1%, and 0.2% v / v ) were applied using a soil drench under greenhouse conditions. After 40 days of growth, all cyanobacterial suspensions significantly increased wheat growth, biochemical properties, and plant mineral composition compared to the controls. The greatest improvements were observed with the application of cyanobacterial suspensions at the highest concentrations, 25% and 50%. These doses also significantly enhanced the nutritional and physicochemical properties of the soil. Among the different treatments, soil inoculation with crude culture (living cells) and growth medium filtrate at 50% were the most efficient. The wheat growth–promoting effect was attributed to the intracellular or released bioactive compounds of A. cylindrica , such as polysaccharides, proteins, indole acetic acid phytohormone, nitrogen, phosphorus, and potassium. This study demonstrates that terrestrial A. cylindrica -derived suspensions promote wheat growth and can be used as an effective and eco-friendly biofertilizer to enhance plant growth and crop productivity.

Keywords: soil cyanobacteria; biofertilizer; culture suspensions; wheat growth; soil application (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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