Abstract
Silicon leaching plays an important role in the rock weathering, ores leaching, and soil-plant interactions. Mobile silicon compounds are vital for the growth of various plants. Meanwhile, the diversity of bacterial species and strains capable of actively silicon leaching from solid mineral material is strictly limited. The strain Bacillus sp. VKM В-1574 capable of solubilizing minerals in soils has been identified. This strain showed the highest similarity to the 16S rRNA gene sequence and the gyrB gene of Bacillus subtilis strain. Recently, this strain was shown to be able to leach silicon and other essential chemical elements from phosphorite ore, vermiculite, chernozem, and urban soils. The analysis of phosphorite bioleaching revealed a significant dissolution of silicon and Scanning electron microscopy confirmed the bacterial leaching of phosphorite rocks. Bioleaching of vermiculite was the highest in dissolved compounds compared to non-inoculated samples in case of numerous chemical elements including the rare ones. Application of B. subtilis VKM В-1574 to two soil samples on which wheat and cucumber were grown increased the amount of silicon compounds both in soil extracts and plants compared to non-inoculated variants. Some possible mechanisms of the silicon mobilization and the role of silicon in plants are discussed. Выщелачивание кремния играет важную роль в выветривании горных пород, переработке руд и почвенно-растительных взаимодействиях. Подвижные соединения кремния жизненно необходимы для роста различных растений. При этом разнообразие видов и штаммов бактерий, способных активно выщелачивать кремний из твердых минеральных материалов, крайне ограничено. Идентифицирован штамм Bacillus sp. VKM В-1574, способный растворять минералы в почвах. Анализ последовательностей генов 16S рРНК и gyrB данного штамма выявил наивысшее сходство со штаммом Bacillus subtilis. Показано, что этот штамм способен выщелачивать кремний и другие необходимые химические элементы из фосфоритовой руды, вермикулита, чернозема и городских почв. Анализ биовыщелачивания фосфорита выявил значительное растворение кремния, а сканирующая электронная микроскопия подтвердила бактериальное выщелачивание фосфоритовых пород. Биовыщелачивание вермикулита показало наивысшее содержание растворенных соединений по сравнению с неинокулированными образцами для целого ряда химических элементов, включая редкие. Применение B. subtilis VKM В-1574 к двум образцам почв, на которых выращивались пшеница и огурец, увеличило количество соединений кремния как в почвенных экстрактах, так и в растениях по сравнению с неинокулированными вариантами. В статье обсуждаются возможные механизмы мобилизации кремния, а также роль кремния в росте растений.
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Claims 3
Claim · model-written summary
Bacillus strain showed closest sequence similarity to B. subtilis.
- Taxon
- wheat
Triticum aestivume1 - Interactor
- Bacillus subtilis
Bacillus subtilise0symbiont - Outcome
- highest similarity to the 16S rRNA gene sequence and the gyrB gene of Bacillus subtilis straine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This strain showed the highest similarity to the 16S rRNA gene sequence and the gyrB gene of Bacillus subtilis strain”
e1“wheat and cucumber were grown”
Claim · model-written summary
Bacterial treatment increased silicon compounds in wheat plants.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Application of B. subtilis VKM В-1574e0
- Interactor
- B. subtilis VKM В-1574Bacillus subtilise0symbiont
- Outcome
- amount of silicon compounds both in soil extracts and plantse0
- Direction
- increasede0
- Comparator
- non-inoculated variantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of B. subtilis VKM В-1574 to two soil samples on which wheat and cucumber were grown increased the amount of silicon compounds both in soil extracts and plants compared to non-inoculated variants”
Claim · model-written summary
Bacterial treatment increased silicon compounds in cucumber plants.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- Application of B. subtilis VKM В-1574e0
- Interactor
- B. subtilis VKM В-1574Bacillus subtilise0symbiont
- Outcome
- amount of silicon compounds both in soil extracts and plantse0
- Direction
- increasede0
- Comparator
- non-inoculated variantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of B. subtilis VKM В-1574 to two soil samples on which wheat and cucumber were grown increased the amount of silicon compounds both in soil extracts and plants compared to non-inoculated variants”
The same questions in other papers
Bacillus subtilis · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →Bacillus subtilis · molecular: metabolites · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.