Changes of Biogenic Elements in Phragmites australis and Suaeda salsa from Salt Marshes in Yellow River Delta, China

Jia, Jia; Bai, Junhong; Wang, Wei; Zhang, Guangliang; Wang, Xin; Zhao, Qingqing; Zhang, Shuai

doi:10.1007/s11769-018-0959-1

Cited by 14 publications

(6 citation statements)

References 38 publications

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“…2), which was far lower than that in C 3 -dominated coastal marshes in San Francisco Bay estuary (1-17‰) (Cloern et al, 2002). The wetland ecosystems in the YRD, like many northern and temperature forests, are nitrogen-limited (Reay et al, 2008;Jia et al, 2018). N limitation might influence nitrogen availability of wetland plants and thus accumulation process of soil δ 15 N (King et al, 2009;McLauchlan et al, 2010).…”

Section: Discussionmentioning

confidence: 91%

Spatial characteristics of soil δ13C and δ15N reveal shrub-induced successional process in a coastal wetland

Zhou

2020

Estuarine, Coastal and Shelf Science

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Woody plant encroachment into grasslands is a worldwide phenomenon. Still, there is a research gap in quantifying the ecological processes of coastal wetland ecosystems. Here, we combined soil stable isotope technology with geostatistical methods to quantify the spatial characteristics of soil δ 13 C and δ 15 N in a coastal wetland experiencing native shrub Tamarix chinensis encroachment in the Yellow River Delta (YRD), China, and to clarify the possible mechanisms by which shrub-induced successional processes determined the spatial distribution of soil δ 13 C and δ 15 N. The results showed that soil δ 13 C and δ 15 N significantly decreased from bare land to grass and to shrub at the vegetation type level. Pearson correlation showed that soil δ 13 C and δ 15 N were positively related to soil salinity, but negatively related to plant variables (grass cover, shrub crown width and above-ground biomass). Scaling method indicated that soil δ 13 C variation occurred at two different scales, 40 m and 150 m, representing influences of shrub T. chinensis and environmental heterogeneity, respectively. Soil δ 15 N variation was observed to occur at the 75 m scale, suggesting the combination effect of T. chinensis and Suaeda glaucadominated grass species. Furthermore, other soil and plant variables also exhibited two-scale characteristics similar to soil δ 13 C. Therefore, the vegetation succession processes of coastal wetlands experiencing shrub encroachment could be understood well by combining soil stable isotope with GIS spatial tools. The spatial characteristics of soil stable isotopes help us establish strategies for protecting and managing coastal wetlands.

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Section: Discussionmentioning

confidence: 91%

Spatial characteristics of soil δ13C and δ15N reveal shrub-induced successional process in a coastal wetland

Zhou

2020

Estuarine, Coastal and Shelf Science

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“…reported that the recalcitrant compounds (such as cellulose and lignin) in litter displayed negative correlation with litter decomposition. The cellulose and lignin contents in litter of T. chinensis were higher than those in litter of herbs, resulting in lower decomposition rate . Mou et al .…”

Section: Discussionmentioning

confidence: 98%

“…In the herb layer, the TC content was almost constant among different parts and communities in the supratidal zone, but herbs in the supratidal zone accumulated more C than those in the intertidal zone (Figure a), as the TC content in the intertidal vegetation (e.g., S. salsa ) was lower compared to the supratidal vegetation (e.g., A. capillaris and S. viridis ) . In addition, the TN content was allocated more in the aboveground parts and varied among different communities and survival conditions (Figures and , and Table ).…”

Section: Discussionmentioning

confidence: 99%

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Characteristics of Vegetation Carbon, Nitrogen, and C/N Ratio in a Tamarix chinensis Coastal Wetland of China

Xie

Wang

Xin

et al. 2019

CLEAN Soil Air Water

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Variations in carbon (C) and nitrogen (N) of the vegetation in aTamarix chinensis coastal wetland located in Laizhou Bay, China, are analyzed. It is found that T. chinensis accumulates more C and N than the surrounding herbs, and it allocates more C and N in the aboveground parts but less in the roots. Branches store more C, whereas leaves and flowers accumulate more N than other tissues. The C and N contents in the aboveground parts of T. chinensis are mainly influenced by pH, electrical conductivity (EC), water content, and clay content in the top 100 cm of soil as well as the distance from the sea. For the herbs, their C contents vary little in the supratidal zone, but they are higher than those in the intertidal zone. However, N contents in the herbs are higher in the aboveground parts and varied among different communities. The contents of C and N in the herbs are affected by EC, water content as well as the contents of organic C and total nitrogen (TN) in the top 10 cm of soil. The findings confirm that increasing the biomass of T. chinensis is an effective way to increase C sequestration in temperate coastal wetland.

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“…Pall. communities in degraded saline lands ( Sui et al., 2013 ), but the mechanism responsible for betacyanin change remains unclear ( Jia et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on betacyanins synthesis and the transcriptome of Suaeda salsa

Zhao

et al. 2023

Front. Plant Sci.

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IntroductionSuaeda salsa (Linn.) Pall. is an important tourist resource and ecological restoration species in coastal wetlands. Environmental factors such as low temperature, darkness, phytohormone, salt stress and seawater flflooding, and light can induce betalain synthesis in S. salsa, which plays an important role in plant adaptation to abiotic stress processes and in shaping the beautiful “red beach” landscape.MethodsIn this study, Illumina sequencing was used to profifile the transcriptome sequence (RNA-Seq) of S. salsa leaves at different temperatures (5° C, 10°C, 15°C, 20°C, 25°C, and 30°C) and to validate differentially expressed genes (DEGs) indicated by real-time PCR (RT-qPCR).ResultsThe betacyanin content was highest in S. salsa leaves at 15°C. Transcription group data showed that compared to the control group (15°C), the “betacyanin biosynthesis pathway” was signifificantly enriched in the fifive different temperature groups. KEGG analysis showed that the DEGs were mainly involved in pathways of phenylpropanoid biosynthesis, carbon fifixation in photosynthetic organisms, flflavonoid biosynthesis, and betacyanin biosynthesis. Among the key enzymes involved in biosynthesis of betacyanin, genes for tyrosinase, CYP76AD1 and 4,5-DOPA dioxygenase were signifificantly upregulated and most abundantly expressed at 15°C. It is possible that the gene for betacyanin synthesis from S. salsa is primarily regulated by the MYB1R1 and MYB1 transcription factor. Four DEGs were randomly selected for quantitative PCR analysis, and DEG expression was generally consistent with the RNA-Seq data, verifying the validity of the transcriptome sequencing data.DiscussionRelative to other temperatures, 15°C was optimum for S. salsa betacyanin synthesis, and this provides a theoretical reference for coastal wetland ecological remediation, reveals mechanisms of S. salsa discoloration, and further mines its potential application for landscape vegetation.

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Changes of Biogenic Elements in Phragmites australis and Suaeda salsa from Salt Marshes in Yellow River Delta, China

Cited by 14 publications

References 38 publications

Spatial characteristics of soil δ13C and δ15N reveal shrub-induced successional process in a coastal wetland

Spatial characteristics of soil δ13C and δ15N reveal shrub-induced successional process in a coastal wetland

Characteristics of Vegetation Carbon, Nitrogen, and C/N Ratio in a Tamarix chinensis Coastal Wetland of China

Effect of temperature on betacyanins synthesis and the transcriptome of Suaeda salsa

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