The environmental gradient influences the concentrations of carbon compounds in the biomass of Protium icicariba (DC.) Marchand in restinga area

IF 0.5 4区农林科学 Q4 FORESTRY

Scientia Forestalis Pub Date : 2022-09-13 DOI:10.18671/scifor.v50.26

Fabiano Caprini Volponi, Ramon Negrão Santos Junior, Felipe Machado Barreto, Fernanda Bonini dos Reis, João Pedro Zanardo de Andrade, G. Cuzzuol, P. C. Cavatte

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Abstract

The environmental gradient influences the concentrations of carbon compounds in the biomass of Protium icicariba (DC.) Abstract The objective of this study was to analyze the concentrations of non-structural carbohydrates and cell wall polymers in Protium icicariba individuals along an environmental gradient of a Coastal Brazilian Atlantic Forest (restinga). The concentrations of non-structural carbohydrates (glucose, fructose, sucrose and starch) and cell wall polymers (cellulose, hemicellulose and lignin) were quantified in samples of stems, branches and leaves of individuals distributed in contrasting zones regarding the occurrence of floods [periodically floodable (PI), transitional (IT) and non-floodable (NI)]. Individuals from the non-flooded zone had higher concentrations of starch and hemicelluloses in the branches and leaves. On the other hand, cellulose and lignin concentrations were higher in the leaves of individuals from the periodically flooded and transitional zones. The variations in the concentrations of non-structural carbohydrates and cell wall polymers were mainly associated with water availability and plasticity of the species, in addition to possible influences of soil nutrient supply and the occurrence of herbivory. The sensitivity in the dynamics of the carbon molecules of P. icicariba in a diverse and spatially short environmental gradient, requires considerable plasticity of the species that, in the imminence of climatic changes, must favor its survival in the face of the imposition of new environmental filters.

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环境梯度对绿藻(Protium icicariba)生物量碳化合物浓度的影响。Marchand在休息区

环境梯度对绿藻(Protium icicariba)生物量碳化合物浓度的影响。摘要本研究的目的是分析沿巴西沿海大西洋森林(restinga)的环境梯度的Protium icicariba个体的非结构性碳水化合物和细胞壁聚合物的浓度。在洪水发生[周期性可淹水(PI)，过渡性(IT)和非可淹水(NI)]的对比区分布的个体的茎，枝和叶样品中，定量了非结构性碳水化合物(葡萄糖，果糖，蔗糖和淀粉)和细胞壁聚合物(纤维素，半纤维素和木质素)的浓度。来自非淹水区的个体在树枝和叶子中具有较高的淀粉和半纤维素浓度。另一方面，周期性淹水和过渡带的个体叶片中纤维素和木质素的浓度较高。非结构性碳水化合物和细胞壁聚合物浓度的变化主要与物种的水分有效性和可塑性有关，此外还可能受到土壤养分供应和草食发生的影响。P. icicariba在多样化和空间短的环境梯度中碳分子动态的敏感性要求该物种具有相当大的可塑性，在气候变化迫在眉睫的情况下，必须有利于其在新的环境过滤器的强加下生存。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Scientia Forestalis Agricultural and Biological Sciences-Forestry

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Scientia Forestalis is a scientific publication of the IPEF – Institute of Forest Research and Studies, founded in 1968, as a nonprofit institution, in agreement with the LCF – Department of Forest Sciences of the ESALQ – Luiz de Queiroz College of Agriculture of the USP – São Paulo University. Scientia Forestalis, affiliated to the ABEC – Brazilian Association of Scientific Publishers, publishes four issues per year of original papers related to the several fields of the Forest Sciences. The Editorial Board is composed by the Editor, the Scientific Editors (evaluating the manuscript), and the Associated Editors (helping on the decision of acceptation or not of the manuscript, analyzed by the Peer-Reviewers.