ФОСФАТМОБІЛІЗУВАЛЬНІ ВЛАСТИВОСТІ ГРИБІВ РОДУ PENICILLIUM, ВИДІЛЕНИХ З ГІСТОСФЕРИ СОЇ
Objective. To research the ability of fungi of the genus Penicillium, isolated from the histosphere of soybean plants, release phosphorus from mineral and organic phosphates, study their effect on the general phosphorus content in plant shoots. Methods. Microbiological (cultivation of the tested fun...
Збережено в:
| Дата: | 2025 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Institute of Agrocultural Microbiology and Agro-industrial Manufacture of NAAS of Ukraine
2025
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| Теми: | |
| Онлайн доступ: | https://smic.in.ua/index.php/journal/article/view/536 |
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| Назва журналу: | Agriciltural microbiology |
Репозитарії
Agriciltural microbiology| Резюме: | Objective. To research the ability of fungi of the genus Penicillium, isolated from the histosphere of soybean plants, release phosphorus from mineral and organic phosphates, study their effect on the general phosphorus content in plant shoots. Methods. Microbiological (cultivation of the tested fungi on Pikovska’s medium and its modifications, Czapek-Dox agar with tricalcium phosphate or phenolphthalein phosphate, wort agar), vegetation experiment (content determination of general phosphorus in the aboveground mass of soybean plants), statistical. Results. The use of three insoluble phosphates in Pikovska medium showed that the tested fungi dissolve to varying degrees Са3(РО4)2 and are unable to dissolve AlPO4 and FePO4. On the seventh day of cultivation, clearly visible zones of enlightenment were formed around the colonies of P. funiculosum 20312 and P. variabile 20173, with phosphate dissolution indexes of 1.17 and 1.18, respectively. When cultivating fungi on Pikovska medium with the addition of bromophenol blue dye in P. funiculosum 20312 and P. variabile 20173, the medium quickly changed colour from green to yellow, indicating the diffusion of organic acids produced by the fungi into the agar. Starting from the twelfth day of the experiment, the environment around the colonies of fungi P. glauco-lanosum 20401 also acquired a rich yellow colour and the halo zones formation was observed. The presence of phosphatase activity was demonstrated for all the tested fungi. The tested strains of fungi had a positive effect on the general phosphorus content in the dry matter of soybean shoots, this indicator increased notably in the variant with the use of P. funiculosum 20312 — 0.751 % against 0.643 % in the control variant. Conclusions. The tested fungi of the genus Penicillium, isolated from surface-sterilised roots of soybean plants, are capable of releasing phosphorus by dissolving inorganic and mineralising organic phosphates, and have a positive effect on the content of general phosphorus in soybean shoots. |
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