Mycorrhizal benefits on native plants of the Caatinga, a Brazilian dry tropical forest

Pedone-Bonfim, Maria Valdirene Leite; Silva, Danielle Karla Alves da; Maia, Leonor Costa; Yano‐Melo, Adriana Mayumi

doi:10.1007/s13199-017-0510-7

Cited by 10 publications

(2 citation statements)

References 66 publications

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“…The presence of this species in areas of early secondary forest may reflect greater availability of nutrients for plants at this stage, due to the investment in extraradical mycelium characteristic of the Gigasporales group, to which it belongs (Chagnon et al 2013). The presence of indicator species reinforces the importance of preserving natural environments (Álvarez-Lopeztello et al 2019) and supports the use of AMF species adapted to different ecosystems as bioinoculants in the production of seedlings for the restoration of degraded areas (Robinson-Boyer et al 2009;Pedone-Bonfim et al 2018).…”

Section: Discussionmentioning

confidence: 83%

Succession stages and soil attributes influence the structure of arbuscular mycorrhizal fungi communities in the Atlantic Forest

Silva,

Assis,

Passos

et al. 2023

Acta Bot. Bras.

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The objective of this study was to determine the structure, diversity, composition and drivers of AMF communities in succession areas of Atlantic Forest. Soil and root samples were collected in three natural ecosystems (mature rainforests, early and late secondary forests) with three areas on each ecosystem. In total, 38 AMF taxa were identified in field samples and three more in trap cultures with a greater richness of Acaulospora and Glomus. Based on a richness estimator, 70% of the AMF species were identified. Highest rates of root colonization and number of glomerospores were recorded in the early secondary forest. AMF species diversity differed between early and late forests. The main drivers of AMF distribution were coarse and fine sand, silt, Al, P, Na, pH and base saturation. The greatest number of exclusive species was recorded in the mature rainforests. The distribution of AMF communities was influenced by different successional stages and some soil attributes.

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Section: Discussionmentioning

confidence: 83%

Succession stages and soil attributes influence the structure of arbuscular mycorrhizal fungi communities in the Atlantic Forest

Silva,

Assis,

Passos

et al. 2023

Acta Bot. Bras.

Self Cite

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“…Tropical forests are important reservoirs of biodiversity (Sun et al 2020) and provide various ecosystem services, such as carbon sequestration, nutrient cycling, and water regulation (Jakovac et al 2021). The first 10 centimeters of the forest topsoil contain a high abundance of microbial biomass (Barros et al 2019), which plays a critical role in maintaining important ecological functions of the soil (Ivanova et al 2018), such as the decomposition and the mineralization of organic matter, the cycling of nutrients, as well as plant resistance to biotic and abiotic stresses, impacting the productivity and vegetal composition (Vandenkoornhuyse et al 2015;Pedone-Bonfim et al 2018;Berkelmann et al 2020). However, the conversion of tropical forests to alternative land uses, primarily agriculture and pasture, persists as a significant threat to these critical ecosystems worldwide (Jakovac et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Santos,

Silva,

Faria

et al. 2024

Fronteiras

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The objective of this study was to evaluate the potential of topsoil obtained from a natural forest fragment in the Brazilian Atlantic Forest to serve as a source of symbiotic microorganisms capable of promoting the growth of native tree species in ecological restoration projects. In greenhouse conditions, 14 experiments in a completely randomized design were conducted in 1,700 cm³ pots filled with sterilized substrate. The effect of adding 80 g of topsoil, either in natura or sterilized, to the substrate was tested on the growth of 14 tree species. Plant height, stem diameter, mycorrhizal colonization and dry masses of shoot, roots, and nodules of tree species were measured. Applying the topsoil to the pots generally resulted in significant increases in height and stem diameter of seedlings compared to the control group during the four to six-month evaluation period. This effect was particularly greater in the nodulating species Plathymenia reticulata, Dalbergia nigra and Mimosa bimucronata, with increases in height and stem diameter of up to 328% and 484%, respectively. Forest topsoil also had a positive impact on the growth of shoot, roots, and nodules of the plants, significantly differing from the control groups. Only the plants that received the topsoil in natura exhibited mycorrhizal colonization and the formation of nodules in nitrogen-fixing species. These plants that established mycorrhizas and nodules presented higher concentrations of phosphorous and nitrogen in their biomass, respectively. Under controlled conditions, the use of forest topsoil proved to be a promising strategy for the introduction of microorganisms that can enhance the growth of tree species, thereby holding potential for implementation in nurseries and field settings.

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Seasonality and Activity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Endemic Tree Species

Lambais,

de Souza,

Késsia

et al. 2024

Journal of Basic Microbiology

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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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Mycorrhizal benefits on native plants of the Caatinga, a Brazilian dry tropical forest

Cited by 10 publications

References 66 publications

Succession stages and soil attributes influence the structure of arbuscular mycorrhizal fungi communities in the Atlantic Forest

Succession stages and soil attributes influence the structure of arbuscular mycorrhizal fungi communities in the Atlantic Forest

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Seasonality and Activity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Endemic Tree Species

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