Arid
DOI10.3389/fmicb.2018.01755
Nutrient Dependent Cross-Kingdom Interactions: Fungi and Bacteria From an Oligotrophic Desert Oasis
Velez, Patricia1,4; Espinosa-Asuar, Laura1; Figueroa, Mario2; Gasca-Pineda, Jaime1,5; Aguirre-von-Wobeser, Eneas3; Eguiarte, Luis E.1; Hernandez-Monroy, Abril1; Souza, Valeria1
通讯作者Velez, Patricia ; Souza, Valeria
来源期刊FRONTIERS IN MICROBIOLOGY
ISSN1664-302X
出版年2018
卷号9
英文摘要

Microbial interactions play a key role in ecosystem functioning, with nutrient availability as an important determinant. Although phylogenetically distant bacteria and fungi commonly co-occur in nature, information on their cross-kingdom interactions under unstable, extreme environments remains poor. Hence, the aims of this work were to evaluate potential in vitro interactions among fungi and bacteria isolated from a phosphorous oligotrophic aquatic system in the Cuatro Cienegas Basin, Mexico, and to test the nutrients-based shifts. We assessed growth changes in bacteria (Aeromonas and Vibrio) and fungi (Coprinellus micaceus, Cladosporium sp., and Aspergillus niger) on co-cultures in relation to monocultures under diverse nutrient scenarios on Petri dishes. Interactions were explored using a network analysis, and a metabolome profiling for specific taxa. We identified nutrient-dependent patterns, as beneficial interactions dominated in low-nutrients media and antagonistic interactions dominated in rich media. This suggests that cross-kingdom synergistic interactions might favor microbial colonization and growth under low nutrient conditions, representing an adaptive trait to oligotrophic environments. Moreover, our findings agree with the stress-gradient hypothesis, since microbial interactions shifted from competition to cooperation as environmental stress (expressed as low nutrients) increased. At a functional level consistent differences were detected in the production of secondary metabolites, agreeing with plate bioassays. Our results based on culture experiments, provides evidence to understand the complexity of microbial dynamics and survival in phosphorous-depleted environments.


英文关键词arid environment ecology cooperation microbial interactions metabolome nutrient availability stress-gradient hypothesis
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000440791000001
WOS关键词ARBUSCULAR MYCORRHIZAL FUNGI ; STRESS-GRADIENT HYPOTHESIS ; 2 MICROBIAL MATS ; COMMUNITY STRUCTURE ; ASPERGILLUS-NIGER ; LEAF-LITTER ; IN-VITRO ; NUTRITIONAL-REQUIREMENTS ; COMPARATIVE METAGENOMICS ; PSEUDOMONAS-FLUORESCENS
WOS类目Microbiology
WOS研究方向Microbiology
来源机构Universidad Nacional Autónoma de México
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209441
作者单位1.Univ Nacl Autanoma Mexico, Inst Ecol, Dept Ecol Evolut, Lab Evoluc Mol & Expt, Mexico City, DF, Mexico;
2.Univ Nacl Autonoma Mexico, Lab 125E, Fac Quim, Dept Farm, Mexico City, DF, Mexico;
3.Catedras CONACyT Ctr Invest Alimentac & Desarroll, Hermosillo, Sonora, Mexico;
4.Univ Nacl Autonoma Mexico, Dept Bot, Lab Ecol Mol Micromicetos Ecosistemas Amenazados, Inst Biol, Mexico City, DF, Mexico;
5.Ctr Invest Cient & Educ Super Ensenada, Lab Genet Conservac, Dept Biol Conservac, Ensenada, Baja California, Mexico
推荐引用方式
GB/T 7714
Velez, Patricia,Espinosa-Asuar, Laura,Figueroa, Mario,et al. Nutrient Dependent Cross-Kingdom Interactions: Fungi and Bacteria From an Oligotrophic Desert Oasis[J]. Universidad Nacional Autónoma de México,2018,9.
APA Velez, Patricia.,Espinosa-Asuar, Laura.,Figueroa, Mario.,Gasca-Pineda, Jaime.,Aguirre-von-Wobeser, Eneas.,...&Souza, Valeria.(2018).Nutrient Dependent Cross-Kingdom Interactions: Fungi and Bacteria From an Oligotrophic Desert Oasis.FRONTIERS IN MICROBIOLOGY,9.
MLA Velez, Patricia,et al."Nutrient Dependent Cross-Kingdom Interactions: Fungi and Bacteria From an Oligotrophic Desert Oasis".FRONTIERS IN MICROBIOLOGY 9(2018).
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