Abundance of rhizospheric bacteria and fungi associated with Fouquieria columnaris at Punta Cirio, Sonora, Mexico

Gutiérrez, Aldo; Coronado, Martha L.; Teyer, Lorenzo Felipe Sánchez; Sánchez, Alfonso; Esqueda, Martín

doi:10.22201/ib.20078706e.2018.2.1620

Cited by 5 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was in accordance with the widely accepted view that nitrogen is a particularly important abiotic soil factor affecting soil microbial community (49,50).…”

Section: Climate As a Driver Of Network Variationsupporting

confidence: 92%

Elevation-related climate trends dominate fungal co-occurrence patterns on Mt. Norikura, Japan

Yang

Kerfahi

et al. 2021

Preprint

View full text Add to dashboard Cite

Although many studies have explored patterns of fungal community diversity and composition along various environmental gradients, the trends of co-occurrence networks across similar gradients remain elusive. Here, we constructed co-occurrence networks for fungal community along a 2300 m elevation gradient on Mt Norikura, Japan, hypothesizing a progressive decline in network connectivity with elevation due to reduced niche differentiation caused by declining temperature and ecosystem productivity. Results agreed broadly with predictions, with an overall decline in network connectivity with elevation for all fungi and the high abundance phyla. However, trends were not uniform with elevation, most decline in connectivity occurred between 700 m and 1500 m elevation, remaining relatively stable above this. Temperature and precipitation dominated variation in network properties, with lower mean annual temperature (MAT) and higher mean annual precipitation (MAP) at higher elevations giving less network connectivity, largely through indirect effects on soil properties. Among keystone taxa that played crucial roles in network structure, the variation in abundance along the elevation gradient was also controlled by climate and also pH. Our findings point to a major role of climate gradients in mid-latitude mountain areas in controlling network connectivity. Given the importance of the orographic precipitation effect, microbial community trends seen along elevation gradients might not be mirrored by those seen along latitudinal temperature gradients.ImportanceAlthough many studies have explored patterns of fungal community diversity and composition along various environmental gradients, it is unclear how the topological structure of co-occurrence networks shifts across environmental gradients. In this study, we found that the connectivity of the fungal community decreased with increasing elevation, and that climate was the dominant factor regulating co-occurrence patterns, apparently acting indirectly through soil characteristics. Assemblages of keystone taxa playing crucial roles in network structure varied along the elevation gradient and were also largely controlled by climate. Our results provide insight into the shift of soil fungal community co-occurrence structure along elevational gradients, and possible driving mechanisms behind this.Graphic abstract

show abstract

“…This was in accordance with the widely accepted view that nitrogen is a particularly important abiotic soil factor affecting soil microbial community (49,50).…”

Section: Climate As a Driver Of Network Variationsupporting

confidence: 92%

Elevation-related climate trends dominate fungal co-occurrence patterns on Mt. Norikura, Japan

Yang

Kerfahi

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…This way, AMF ensures viable propagules until the next rainy season, when plants activate their metabolic activity again(Aguilera-Gómez et al 2007, Aguilar-Fernández et al 2009. Spore numbers reported in this study are higher than those reported for other arid regions in México(Carrillo-García et al 1999, Camargo- Ricalde et al 2003, Gutiérrez-Ruacho et al 2018. Several factors may influence the numbers of spores including rainfall, the fungi species, soil properties and temperature among others(Ochoa-Meza et al 2009).…”

mentioning

confidence: 66%

Enhanced mycorrhization in four species of columnar cacti under the Sonoran Desert tree <em>Olneya tesota</em>

Blanco-Valenzuela,

Calderón,

Ochoa-Meza

et al. 2024

Bot. Sci.

View full text Add to dashboard Cite

Background: Columnar cacti survival in deserts occurs mainly under nurse plants, due to better conditions for germination and establishment, as greater humidity, and nutrient concentration. However, interactions like the association between arbuscular mycorrhizal fungi (AMF) and roots remain relatively unexplored. We evaluated the mycorrhizal status and soil rhizosphere properties of four columnar cacti species growing both under and outside their nurse plant. Hypotheses: Soil properties improvement under nurse plants has been correlated with the abundance of AMF. Therefore, a greater number of AMF structures and roots mycorrhization would be in facilitated plants, compared to the same species growing outside the nurse. Studied species: Nurse plant: Olneya tesota, facilitated species: Carnegiea gigantea, Pachycereus pringlei, Pachycereus schottii, and Stenocereus thurberi. Study site and dates: Central Gulf Coast subdivision of the Sonoran Desert, Sonora, Mexico; October 2020. Methods: Cacti roots and soil rhizosphere were collected under and outside the nurse plant. Roots were stained, and mycorrhizal colonization (MC), hairy roots (HR), visual density (VD), and number of spores were determined. Physicochemical soil properties were analyzed. Results: Values of MC, VD, spore number, organic matter (OM), nitrate, and total and assimilable phosphorous were higher under the nurse compared to bare areas. Conclusions: The hypothesis that mycorrhization parameters are greater in roots of cacti growing under the nurse was confirmed, besides previous knowledge about soil quality under nurse plants, suggesting that AMF play a significant role in the cacti facilitation process under nurses plants, and that nurse plant plays a significant role in AMF formation.

show abstract

“…Nevertheless, the lack of significant correlation between soil pH and bacterial diversity along elevations in this study may be pertaining to the narrow soil pH ranges (4.56-4.64) observed. Intriguingly, the vast majority of previous studies mentioned that soil carbon and nitrogen were two of the abiotic soil factors affecting bacterial diversity along elevations 38,39,45,47 , whereas only a few reported that soil C and N were the most prominent abiotic soil factors rather than soil pH or any other. For example, according to a prior study in alpine tundra, soil total carbon content and C:N ratio were the most prominent factors influencing bacterial diversity patterns 40 .…”

Section: Discussionmentioning

confidence: 99%

Change of rhizospheric bacterial community of the ancient wild tea along elevational gradients in Ailao mountain, China

Jiang

Cheng

et al. 2020

Sci Rep

View full text Add to dashboard Cite

The rhizospheric microbial community is one of the major environmental factors affecting the distribution and fitness of plants. Ancient wild tea plants are rare genetic resource distributed in Southwest China. In this study, we investigated that rhizospheric bacterial communities of ancient wild tea plants along the elevational gradients (2050, 2200, 2350 and 2500 m) in QianJiaZhai Reserve of Ailao Mountains. According to the Illumina MiSeq sequencing of 16 S rRNA gene amplicons, Proteobacteria, Acidobacteria and Actinobacteria were the dominant phyla with the relative abundance 43.12%, 21.61% and 14.84%, respectively. The Variibacter was the most dominant genus in rhizosphere of ancient wild tea plant. Phylogenetic null modeling analysis suggested that rhizospheric bacterial communities of ancient wild tea plants were more phylogenetically clustered than expected by chance. The bacterial community at 2050 m was unique with the highest alpha diversity, tend to cluster the nearest taxon and simple co-occurrence network structure. The unique bacterial community was correlated to multiple soil factors, and the content soil ammonium nitrogen (nH 4 +-N) was the key factor affecting the diversity and distribution of bacterial community along the elevational gradients. This study provided the necessary basic information for the protection of ancient tea trees and cultivation of tea plants.

show abstract

Abundance of rhizospheric bacteria and fungi associated with Fouquieria columnaris at Punta Cirio, Sonora, Mexico

Cited by 5 publications

References 29 publications

Elevation-related climate trends dominate fungal co-occurrence patterns on Mt. Norikura, Japan

Elevation-related climate trends dominate fungal co-occurrence patterns on Mt. Norikura, Japan

Enhanced mycorrhization in four species of columnar cacti under the Sonoran Desert tree <em>Olneya tesota</em>

Change of rhizospheric bacterial community of the ancient wild tea along elevational gradients in Ailao mountain, China

Contact Info

Product

Resources

About