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Assessment of the microbial pool of raised bog plantsстатья Перевод Исследовательская статья
Информация о цитировании статьи получена из
Scopus
Дата последнего поиска статьи во внешних источниках: 22 февраля 2019 г.
- Авторы: Golovchenko Alla V., Harlak Angelina L., Gluhova Tamara V.
- Журнал: Tomsk State University Journal of Biology
- Номер: 43
- Год издания: 2018
- Первая страница: 25
- Последняя страница: 43
- Оригинальные версии: Оценка микробного пула растений верховых болот
- DOI: 10.17223/19988591/43/2
- Аннотация: Microbial communities of raised bogs were mainly examined in Sphagnum moss and peaty layers. Such choice is understandable and can be explained by the fact that Sphagnum moss plays an essential role in raised bogs’ peat accumulating. Raised bogs are rich in unique prostrate shrubs and herbaceous plants that are more adapted to survival in oligotrophic conditions. These plant species have their own specificities and decomposition rate that differs from Sphagnum. The major aim of this work was to assess raised bogs’ prostrate shrubs and herbaceous plants’ microbial pool. Fungi, bacteria and yeast-like cells were detected in examined plants. We found both fungal spores and fungal mycelium. Plant species as well asits vegetative part determined microbial population density. The fungal mycelium length on examined plants’ leaves and stems varied from 56 to 566 m/g, the number of spores and yeast-like cells varied from 3 to 24 million spores per gram, the bacterial number varied from 0.5 to 4 billion cells per gram. The fungal mycelium length and bacterial number on plant roots exceeded the same indicators on leaves and stems. On the contrary, fungal spores and the number of yeast-like cells on plant roots was lower than their number on leaves and stems. We established that Carex has the biggest quantity among the majority of microorganism groups and Drosera has the smallest one. Microbial biomass on vegetative parts of raised bog plants varied from 0.10 to 2 mg/g. Microbial biomass calculation on leaves and stems of the majority of examined plants gave close values. The biomass of the examined plant roots did not exceed a factor of two. This biomass calculation proved true for all plant species except for Carex. The microbial biomass of Carex roots was three to five times more than root biomass of other plant species. Bacteria, fungal spores and yeast-like cells proportion in the microbial biomass structure on leaves and stems was quite high (up to 96%), the fungal mycelium dominated in microbial biomass structure on plant roots.
- Добавил в систему: Головченко Алла Владимировна