由eDNA元编码和形态学方法揭示的盐度的底式胺基Cribrononion gnythosuturatum的迹象
Yifei Cao1, Yanli Lei2, Junfeng Shi3
1Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
Marine pollution bulletin
|December 11, 2024
概括
在异常盐度条件下 (15-25 PSU或40-50 PSU) 显示最佳生长,表明其作为古环境研究盐度指标的潜力.
科学领域:
- 海洋生物学 海洋生物学
- 古海洋学是古海洋学.
- 环境科学 环境科学
背景情况:
- 克里布罗诺尼翁 (Cribrononion gnythosuturatum) 是一种广泛分布的盆地菌.
- 它适应不同盐度水平的适应性在很大程度上是未知的.
研究的目的:
- 为了研究C. gnythosuturatum对各种盐度条件的反应.
- 为了确定C. gnythosuturatum作为古盐度指标的潜力.
主要方法:
- 从黄海潮区收集了沉积物样本.
- 在13个盐度梯度 (060PSU) 中培养了10周的生物体.
- 使用了形态分析和环境DNA (eDNA) 的元编码.
主要成果:
- 在低盐度 (<15 PSU) 发生高试验断裂.
- 在高盐度 (>50 PSU) 下,原生体集中在中心.
- 在异常盐度 (15-25 PSU和40-50 PSU) 下观察到最大丰度,相对丰度和生长速度,测试保存良好.
结论:
- C. gnythosuturatum对盐度表现出特定的形态和丰度反应.
- 这种物种在适度异常盐度下表现出弹性和最佳生长.
- 这些发现支持使用C. gnythosuturatum作为古盐度重建的可靠指标.
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