التفاصيل البيبلوغرافية
| العنوان: |
Prokaryote Distribution Patterns along a Dissolved Oxygen Gradient Section in the Tropical Pacific Ocean |
| المؤلفون: |
Peiqing He, Huan Wang, Jie Shi, Ming Xin, Weimin Wang, Linping Xie, Qinsheng Wei, Mu Huang, Xuefa Shi, Yaqin Fan, Hao Chen |
| المصدر: |
Microorganisms, Vol 11, Iss 9, p 2172 (2023) |
| بيانات النشر: |
MDPI AG, 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Biology (General) |
| مصطلحات موضوعية: |
dissolved oxygen, Thaumarchaeota, Nitrospinae, chlorophyll a, nitrate, the Tropical Pacific Ocean, Biology (General), QH301-705.5 |
| الوصف: |
Oceanic oxygen levels are decreasing significantly in response to global climate change; however, the microbial diversity and ecological functional responses to dissolved oxygen (DO) in the open ocean are largely unknown. Here, we present prokaryotic distribution coupled with physical and biogeochemical variables and DO gradients from the surface to near the bottom of a water column along an approximately 12,000-km transect from 13° N to 18° S in the Tropical Pacific Ocean. Nitrate (11.42%), temperature (10.90%), pH (10.91%), silicate (9.34%), phosphate (4.25%), chlorophyll a (3.66%), DO (3.50%), and salinity (3.48%) significantly explained the microbial community variations in the studied area. A distinct microbial community composition broadly corresponding to the water masses formed vertically. Additionally, distinct ecotypes of Thaumarchaeota and Nitrospinae belonging to diverse phylogenetic clades that coincided with specific vertical niches were observed. Moreover, the correlation analysis revealed large-scale natural feedback in which chlorophyll a (organic matter) promoted Thaumarchaeotal biomass at depths that subsequently coupled with Nitrospina, produced and replenished nitrate for phytoplankton productivity at the surface. Low DO also favored Thaumarchaeota growth and fueled nitrate production. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2076-2607 |
| Relation: |
https://www.mdpi.com/2076-2607/11/9/2172; https://doaj.org/toc/2076-2607 |
| DOI: |
10.3390/microorganisms11092172 |
| URL الوصول: |
https://doaj.org/article/14f131f330e7400fadc995c6aff4be55 |
| رقم الانضمام: |
edsdoj.14f131f330e7400fadc995c6aff4be55 |
| قاعدة البيانات: |
Directory of Open Access Journals |
Full Text Finder