Development of Quantitative Real-Time PCR for Detecting Environmental DNA Derived from Marine Macrophytes and Its Application to a Field Survey in Hiroshima Bay, Japan
Water
; 14(5):827, 2022.
Article
in English
| ProQuest Central | ID: covidwho-1742775
ABSTRACT
The sequestration and storage of carbon dioxide by marine macrophytes is called blue carbon;this ecosystem function of coastal marine ecosystems constitutes an important countermeasure to global climate change. The contribution of marine macrophytes to blue carbon requires a detailed examination of the organic carbon stock released by these macrophytes. Here, we introduce a quantitative real-time polymerase chain reaction (qPCR)-based environmental DNA (eDNA) system for the species-specific detection of marine macrophytes. and report its application in a field survey in Hiroshima Bay, Japan. A method of qPCR-based quantification was developed for mangrove, seagrass, Phaeophyceae, Rhodophyta and Chlorophyta species, or species-complex, collected from the Japanese coast to investigate their dynamics after they wither and die in the marine environment. A trial of the designed qPCR system was conducted using sediment samples from Hiroshima Bay. Ulva spp. were abundant in coastal areas of the bay, yet their eDNA in the sediments was scarce. In contrast, Zostera marina and the Sargassum subgenus Bactrophycus spp. were found at various sites in the bay, and high amounts of their eDNA were detected in the sediments. These results suggest that the fate of macrophyte-derived organic carbon after death varies among species.
Environmental Studies; blue carbon stock; marine macrophytes; environmental DNA; quantitative real-time PCR; Polymerase chain reaction; Marine environment; Coastal zone; Aquatic plants; Severe acute respiratory syndrome coronavirus 2; Marine ecosystems; Sediments; Organic carbon; Dynamic tests; Carbon dioxide; Deoxyribonucleic acid--DNA; Sea grass; Methods; Real time; Surveys; Coastal ecosystems; Climate change; Macrophytes; Bays; Storage; Chloroplasts; Surveying; Genes; Sediment samples; Species; Carbon sequestration; Algae; Mangroves; Sediment samplers; Nucleotide sequence; DNA; Climatic changes; United States--US; Japan; Hiroshima Bay
Full text:
Available
Collection:
Databases of international organizations
Database:
ProQuest Central
Type of study:
Observational study
Language:
English
Journal:
Water
Year:
2022
Document Type:
Article
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