特有树种根瘤中丛枝菌根真菌的季节性和活性

IF 3.5 4区 生物学 Q2 MICROBIOLOGY Journal of Basic Microbiology Pub Date : 2024-07-21 DOI:10.1002/jobm.202400354
Érica Olandini Lambais, Tancredo Augusto Feitosa de Souza, Paloma Késsia, Gislaine dos Santos Nascimento, Rodrigo Macedo, Alexandre Pereira de Bakker, George Rodrigues Lambais, Bruno Oliveira Dias, Vânia da Silva Fraga
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引用次数: 0

摘要

本研究分析了Aspidosperma pyrifolium、Bauhinia ungulata、Caesalpinia pyramidalis和Caesalpinia ferrea的丛枝菌根真菌(AMF)活性和土壤化学性质。对AMF孢子、根定殖量、总胶蛋白相关土壤蛋白质(T-GRSP)、易提取胶蛋白相关土壤蛋白质(EE-GRSP)和土壤化学性质进行了四次测量(2019年7月、2020年和2019年12月、2020年)。在不同植物种类和不同季节,我们观察到 AMF 孢子、根定殖、T-GRSP 和 EE-GRSP 存在显著差异。在土壤化学性质方面,我们观察到不同植物物种之间存在差异。在旱季,B. ungulata 和 C. pyramidalis 的 AMF 孢子和根定植率最高(分别为 57.3 ± 0.27 孢子 50 克土壤-1 和 48.8 ± 1.05),而在雨季,C. pyramidalis 和 C. ferrea 的 AMF 孢子和根定植率最高(分别为 36.6 ± 0.13 孢子 50 克土壤-1 和 62.2 ± 1.17)。A.pyrifolium在两个季节都表现出最高的T-GRSP。在土壤化学性质方面,我们发现:(i) A. pyrifolium、B. ungulata 和 C. ferrea 的土壤有机碳(1.32 ± 0.03 g kg-1)、磷(7.01 ± 0.26 mg kg-1)和土壤 pH 值(5.85 ± 0.23)最高;(ii) C. pyramidalis 的钙和磷含量最高。Ca2+、Mg2+、Na+、H+ + Al3+、K+ 和土壤全氮(分别为 1.36 ± 0.04、0.73 ± 0.01、3.72 ± 0.85、4.56 ± 0.12 cmolc kg-1、15.43 ± 1.53 mg kg-1 和 0.16 ± 0.01 g kg-1)最高。我们的研究结果突出表明,在卡廷加等季节性植被中,AMF 孢子作为常年结构比其他 AM 真菌繁殖体更具优势。
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Seasonality and Activity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Endemic Tree Species

This study analyzed arbuscular mycorrhizal fungi (AMF) activity and soil chemical properties in Aspidosperma pyrifolium, Bauhinia ungulata, Caesalpinia pyramidalis, and Caesalpinia ferrea. AMF spores, root colonization, total glomalin-related soil protein (T-GRSP), easily extracted GRSP (EE-GRSP), and soil chemical properties were measured four times (July 2019, 2020 and December 2019, 2020). Significant differences were observed in AMF spores, root colonization, T-GRSP, and EE-GRSP among the plant species and across seasons. For soil chemical properties, we observed differences among plant species. During the dry season, B. ungulata and C. pyramidalis had the highest AMF spores and root colonization (57.3 ± 0.27 spores 50 g soil−1 and 48.8 ± 1.05, respectively), whereas during the rainy season, C. pyramidalis and C. ferrea showed the highest AMF spores and root colonization (36.6 ± 0.13 spores 50 g soil−1 and 62.2 ± 1.17, respectively). A. pyrifolium showed the highest T-GRSP in both seasons. On the basis of the soil chemical properties, we found that (i) A. pyrifolium, B. ungulata, and C. ferrea showed the highest soil organic carbon (1.32 ± 0.03 g kg−1), phosphorus (7.01 ± 0.26 mg kg−1), and soil pH (5.85 ± 0.23) and (ii) C. pyramidalis showed the highest Ca2+, Mg2+, Na+, H+ + Al3+, K+, and soil total nitrogen (1.36 ± 0.04, 0.73 ± 0.01, 3.72 ± 0.85, 4.56 ± 0.12 cmolc kg−1, 15.43 ± 1.53 mg kg−1, and 0.16 ± 0.01 g kg−1, respectively). Our results highlight the advantage of AMF spores as perennating structures over other AM fungal propagules in seasonal vegetation like Caatinga.

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来源期刊
Journal of Basic Microbiology
Journal of Basic Microbiology 生物-微生物学
CiteScore
6.10
自引率
0.00%
发文量
134
审稿时长
1.8 months
期刊介绍: The Journal of Basic Microbiology (JBM) publishes primary research papers on both procaryotic and eucaryotic microorganisms, including bacteria, archaea, fungi, algae, protozoans, phages, viruses, viroids and prions. Papers published deal with: microbial interactions (pathogenic, mutualistic, environmental), ecology, physiology, genetics and cell biology/development, new methodologies, i.e., new imaging technologies (e.g. video-fluorescence microscopy, modern TEM applications) novel molecular biology methods (e.g. PCR-based gene targeting or cassettes for cloning of GFP constructs).
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