Distinct root system acclimation patterns of seagrass <italic style="font-style: italic">Zostera japonica</italic> in sediments of different trophic status: a research by X-ray computed tomography

Xiaoyue SONG; Yi ZHOU; Jiangning ZENG; Lu SHOU; Xiaomei ZHANG; Shidong YUE; Wei GAO; Weihua FENG; Zhifu WANG; Ping DU

doi:10.1007/s00343-020-0421-y

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Distinct root system acclimation patterns of seagrass Zostera japonica in sediments of different trophic status: a research by X-ray computed tomography

Ecology | Updated：2023-05-20

- Distinct root system acclimation patterns of seagrass Zostera japonica in sediments of different trophic status: a research by X-ray computed tomography
- Journal of Oceanology and Limnology Vol. 39, Issue 6, Pages: 2267-2280(2021)
- Affiliations：
  
  1.Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
  2.CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  3.College of Tropical Crops, Hainan University, Haikou 570228, China
  4.Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
- Author bio：
  
  Jiangning ZENG, zjn@sio.org.cn
- Funds：
- DOI：10.1007/s00343-020-0421-y
  CLC：
- Received：30 October 2020，
  
  Accepted：28 November 2020，
  
  Online First：04 December 2020，
  
  Published：2021-11
- Accepted：
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Xiaoyue SONG, Yi ZHOU, Jiangning ZENG, et al. Distinct root system acclimation patterns of seagrass Zostera japonica in sediments of different trophic status: a research by X-ray computed tomography[J]. Journal of Oceanology and Limnology, 2021, 39(6): 2267-2280.
DOI：

Xiaoyue SONG, Yi ZHOU, Jiangning ZENG, et al. Distinct root system acclimation patterns of seagrass Zostera japonica in sediments of different trophic status: a research by X-ray computed tomography[J]. Journal of Oceanology and Limnology, 2021, 39(6): 2267-2280. DOI： 10.1007/s00343-020-0421-y.

摘要

Abstract

Conspecific seagrass living in differing environments may develop different root system acclimation patterns. We applied X-ray computed tomography (CT) for imaging and quantifying roots systems of

Zostera japonica

collected from typical oligotrophic and eutrophic sediments in two coastal sites of northern China

and determined sediment physicochemical properties that might influence root system morphology

density

and distribution. The trophic status of sediments had little influence on the

japonica

root length

and diameters of root and rhizome. However

japonica

in oligotrophic sediment developed the root system with longer rhizome node

deeper rhizome distribution

and larger allocation to below-ground tissues in order to acquire more nutrients and relieve the N deficiency. And the lower root and rhizome densities of

japonica

in eutrophic sediment were mainly caused by fewer shoots and shorter longevity

which was resulted from the more serious sulfide inhibition. Our results systematically revealed the effect of sediment trophic status on the phenotypic plasticity

quantity

and distribution of

japonica

root system

and demonstrated the feasibly of X-ray CT in seagrass root system research.

关键词

Keywords

references

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Distinct root system acclimation patterns of seagrass Zostera japonica in sediments of different trophic status: a research by X-ray computed tomography

DOI：10.1007/s00343-020-0421-y

摘要

Abstract

关键词

Keywords

references