Ecological studies on Prochlorococcus in China seas

Jiao, N.; 焦念志,; Yang, Yuhui

doi:10.1360/02tb9276

Cited by 21 publications

(16 citation statements)

References 30 publications

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“…Similar PRO distribution patterns have been documented in several regions of the China Seas, where the Kuroshio intrusion and associated eddies into these marginal seas of the west Pacific notably impact the distribution and concentrations of PRO populations, which dominate the phytoplankton community in the perturbed areas by the incursion of the warmer and low‐nutrient Kuroshio waters (Huang et al, ; Jiao & Yang, ; Lee et al, ; Li et al, ). Additionally, the incursion of an LL‐PRO ecotype by subsurface advection of water masses has also been documented in the southern northeastern Arabian Sea during late winter monsoon (Bemal et al, ).…”

Section: Resultssupporting

confidence: 67%

Picoplankton Carbon Biomass Assessments and Distribution of Prochlorococcus Ecotypes Linked to Loop Current Eddies During Summer in the Southern Gulf of Mexico

et al. 2019

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Assessments of picoplankton carbon biomass in the pelagic ecosystem over the deep region of the southern Gulf of Mexico were conducted during three consecutive summer cruises. Notably, the relationship between carbon distribution of Prochlorococcus (PRO) and Loop Current (LC) dynamics was evaluated. Seawater samples were collected from the euphotic zone (~150 m) for estimating the abundance of the picoplankton populations using flow cytometry analyses. Carbon biomass estimates were based on cell abundance and variable conversion factors computed across stations and depths. On average, about half of the total depth-integrated carbon biomass of picoplankton was attributed to heterotrophic bacteria (HB, 54%) and three autotrophic populations (Prochlorococcus, Synechococcus, and pico-eukaryotes, 46%). In agreement with previous winter assessments, PRO was the dominant component of abundance (~90%) and pico-phytoplankton community biomass (>70%). Based on molecular analyses, distinct ecotypes of high-light PRO and low-light (LL) PRO were found within the euphotic zone, vertically distributed along light and nutrient gradients. Also, PRO distributions were related to hydrographic conditions strongly modulated by mesoscale dynamics. LL-PRO subgroups, located close to the nutricline under LL conditions, were associated with the westward propagation of anticyclonic eddies that episodically detach from the LC. This study highlights the role of the LC and its eddies in the transport and distribution of carbon biomass into the Gulf of Mexico, as represented by the deep subgroups of the dominant, tiniest autotroph within this oligotrophic ecosystem.

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Section: Resultssupporting

confidence: 67%

Picoplankton Carbon Biomass Assessments and Distribution of Prochlorococcus Ecotypes Linked to Loop Current Eddies During Summer in the Southern Gulf of Mexico

et al. 2019

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“…Genetically related Prochlorococcus can co‐occur both in the surface and at 80 m. This is probably because the sampling season was in winter, and the water column was relatively well mixed. Temperature and salinity investigated during this cruise have scarcely any difference between the two layers (the temperature investigated during this cruise is about 26°C and the salinity is 33·92‰ in both layers), whereas in the summer, these parameters differed noticeably (Jiao and Yang 2002), so the cyanobacteria are less likely than during the summer to be differentiated by depth, or the HL II genotypes are more adaptive to environments and can colonize deeper waters. Similar results can also be found in other sea areas.…”

Section: Genetic Diversity Of Prochlorococcus and Environmentsmentioning

confidence: 81%

Natural community structure of cyanobacteria in the South China Sea as revealed by rpoC1 gene sequence analysis

Jiao

Zeng

2004

Lett Appl Microbiol

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“…The picoplankton in this region have been less well-studied than elsewhere. Jiao and Yang (2002) reported the abundance and diel fluctuations of Prochlorococcus at a few stations in the nSCS; Huang et al (2002) studied the distribution and carbon biomass of picoplankton in the nSCS; Yang and Jiao (2004) studied the dynamics of picoplankton in the Nansha Islands area; and Ning et al (2005a) reported the spatial pattern and vertical pattern of standing stock and community structure of photosynthetic picoplankton in the nSCS. No study has yet examined the seasonal variation of nSCS picoplankton.…”

mentioning

confidence: 99%

Distribution Pattern of Photosynthetic Picoplankton and Heterotrophic Bacteria in the Northern South China Sea

Cai

Ning

Liu

et al. 2007

JIPB

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The environmental regulation of picoplankton distribution in the northern South China Sea was examined in winter and summer of 2004. The average abundance of Synechococcus, Prochlorococcus, and heterotrophic bacteria was lower in winter (30, 21, and 780×10 3 cells/cm 3 , respectively) than in summer (53, 85, and 1 090×10 3 cells/cm 3 , respectively), but the seasonal pattern was opposite for picoeukaryotic phytoplankton (4 500 and 3 200 cells/cm 3 in winter and summer, respectively). Synechococcus, picoeukaryotes, and bacteria were most abundant in the nutrient-rich coastal zone and continental shelf, but Prochlorococcus was most abundant in the continental slope and open ocean. The vertical distribution of each photosynthetic group and heterotrophic bacteria changed between the two seasons. Synechococcus populations with apparently different phycoerythrobilin content occurred at many stations in the summer. In addition, two different populations of Prochlorococcus were found: (i) small, weakly fluorescing cells in the surface layer; and (ii) larger, strongly fluorescent cells in the deep layer. The distribution pattern of photosynthetic picoplankton and heterotrophic bacteria depends on environmental effects and their ecophysiological differences. The distribution of Synechococcus appeared to be related to nutrient availability, whereas the distribution of Prochlorococcus appeared to be limited by temperature. Synechococcus was the only picophytoplankton with a consistent strong relationship with bacteria.

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Ecological studies on Prochlorococcus in China seas

Cited by 21 publications

References 30 publications

Picoplankton Carbon Biomass Assessments and Distribution of Prochlorococcus Ecotypes Linked to Loop Current Eddies During Summer in the Southern Gulf of Mexico

Picoplankton Carbon Biomass Assessments and Distribution of Prochlorococcus Ecotypes Linked to Loop Current Eddies During Summer in the Southern Gulf of Mexico

Natural community structure of cyanobacteria in the South China Sea as revealed by rpoC1 gene sequence analysis

Distribution Pattern of Photosynthetic Picoplankton and Heterotrophic Bacteria in the Northern South China Sea

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