Composition, Predicted Functions and Co-occurrence Networks of Rhizobacterial Communities Impacting Flowering Desert Events in the Atacama Desert, Chile

Astorga-Eló, Marcia; Zhang, Qian; Larama, Giovanni; Stoll, Alexandra; Sadowsky, Michael J.; Jorquera, Milko A.

doi:10.3389/fmicb.2020.00571

Cited by 27 publications

(23 citation statements)

References 81 publications

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“…Recently, some studies have investigated in the microbiome dynamics associated with the "Atacama Flowering Events, " which corresponds to an explosive bloom of dormant desert plants produced by the presence of water as precipitation (Vidiella et al, 1999). Studying this phenomenon, it was discovered that some bacterial groups and their activity can influence the growth and flowering of native plants (Araya et al, 2020;Astorga-Eló et al, 2020). Similarly, cold desert such as Antarctic have also been studied.…”

Section: Extreme Microbiome To the Service Of Sustainable Agriculturementioning

confidence: 99%

Natural Holobiome Engineering by Using Native Extreme Microbiome to Counteract the Climate Change Effects

Rodriguez

Durán

2020

Front. Bioeng. Biotechnol.

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In the current scenario of climate change, the future of agriculture is uncertain. Climate change and climate-related disasters have a direct impact on biotic and abiotic factors that govern agroecosystems compromising the global food security. In the last decade, the advances in high throughput sequencing techniques have significantly improved our understanding about the composition, function and dynamics of plant microbiome. However, despite the microbiome have been proposed as a new platform for the next green revolution, our knowledge about the mechanisms that govern microbe-microbe and microbe-plant interactions are incipient. Currently, the adaptation of plants to environmental changes not only suggests that the plants can adapt or migrate, but also can interact with their surrounding microbial communities to alleviate different stresses by natural microbiome selection of specialized strains, phenomenon recently called "Cry for Help". From this way, plants have been co-evolved with their microbiota adapting to local environmental conditions to ensuring the survival of the entire holobiome to improve plant fitness. Thus, the strong selective pressure of native extreme microbiomes could represent a remarkable microbial niche of plant stress-amelioration to counteract the negative effect of climate change in food crops. Currently, the microbiome engineering has recently emerged as an alternative to modify and promote positive interactions between microorganisms and plants to improve plant fitness. In the present review, we discuss the possible use of extreme microbiome to alleviate different stresses in crop plants under the current scenario of climate change.

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Section: Extreme Microbiome To the Service Of Sustainable Agriculturementioning

confidence: 99%

Natural Holobiome Engineering by Using Native Extreme Microbiome to Counteract the Climate Change Effects

Rodriguez

Durán

2020

Front. Bioeng. Biotechnol.

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“…However, interactions between the microbial communities and succulent plants have been minimally investigated, particularly in arid ecosystems ( Pfeiffer et al, 2017 ). Previous studies ( Jorquera et al, 2016 ; Citlali et al, 2018 ; Delgado-Baquerizo et al, 2018 ; Mandakovic et al, 2018 ; Araya et al, 2020 ; Astorga-Eló et al, 2020 ; Khan et al, 2020 ) have evaluated the microbiome, especially bacterial communities from arid soil. However, little work has explored the phyllosphere and rhizosphere microbiome across different populations of the same host plant species.…”

Section: Introductionmentioning

confidence: 99%

Microbiome Variation Across Populations of Desert Halophyte Zygophyllum qatarensis

et al. 2022

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Microbial symbionts play a significant role in plant health and stress tolerance. However, few studies exist that address rare species of core-microbiome function during abiotic stress. In the current study, we compared the microbiome composition of succulent dwarf shrub halophyte Zygophyllum qatarensis Hadidi across desert populations. The results showed that rhizospheric and endosphere microbiome greatly varied due to soil texture (sandy and gravel). No specific bacterial amplicon sequence variants were observed in the core-microbiome of bulk soil and rhizosphere, however, bacterial genus Alcaligenes and fungal genus Acidea were abundantly distributed across root and shoot endospheres. We also analyzed major nutrients such as silicon (Si), magnesium, and calcium across different soil textures and Z. qatarensis populations. The results showed that the rhizosphere and root parts had significantly higher Si content than the bulk soil and shoot parts. The microbiome variation can be attributed to markedly higher Si – suggesting that selective microbes are contributing to the translocation of soluble Si to root. In conclusion, low core-microbiome species abundance might be due to the harsh growing conditions in the desert – making Z. qatarensis highly selective to associate with microbial communities. Utilizing rare microbial players from plant microbiomes may be vital for increasing crop stress tolerance and productivity during stresses.

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“…For example, herbivore attraction to such Na fertilization can be enhanced by the availability of macronutrients like N and P (Borer et al., 2019; Kaspari et al., 2017; Prather, Laws, et al., 2018; Prather et al., 2020). Additionally, soil Na content can alter rhizobacteria community composition (Astorga‐Eló et al., 2020), which in turn can alter plant nutrient uptake and growth. But even with the variety of species and their chemical composition, chewing herbivory and fungal damage increased with forb foliar Na concentrations.…”

Section: Discussionmentioning

confidence: 99%

Sodium addition increases leaf herbivory and fungal damage across four grasslands

Welti

Kaspari

2021

Functional Ecology

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Sodium (Na) is an essential element for all animals, but not for plants. Soil Na supplies vary geographically. Animals that primarily consume plants thus have the potential to be Na limited and plants that uptake Na may be subject to higher rates of herbivory, but their high Na content also may attract beneficial partners such as pollinators and seed dispersers. To test for the effects of Na biogeochemistry on herbivory, we conducted distributed Na press experiments (monthly Na application across the growing season) in four North American grasslands. Na addition increased soil and plant Na concentrations at all sites. Grasses in Na addition plots had significantly higher herbivore damage by leaf miners and fungal pathogens than those in control plots. Forbs with higher foliar Na concentrations had significantly more chewing insect herbivore and fungal damage. While no pattern was evident across all species, several forb species had higher Na concentrations in inflorescences compared to leaves, suggesting they may allocate Na to attract beneficial partners. The uptake of Na by plants, and animal responses, has implications for the salinification in the Anthropocene. Increased use of road salt, irrigation with saline groundwater, rising sea levels and increasing temperatures and evapotranspiration rates with climate change can all increase inputs of Na into terrestrial ecosystems. Our results suggest increasing terrestrial Na availability will benefit insect herbivores and plant fungal pathogens. A free Plain Language Summary can be found within the Supporting Information of this article.

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Composition, Predicted Functions and Co-occurrence Networks of Rhizobacterial Communities Impacting Flowering Desert Events in the Atacama Desert, Chile

Cited by 27 publications

References 81 publications

Natural Holobiome Engineering by Using Native Extreme Microbiome to Counteract the Climate Change Effects

Natural Holobiome Engineering by Using Native Extreme Microbiome to Counteract the Climate Change Effects

Microbiome Variation Across Populations of Desert Halophyte Zygophyllum qatarensis

Sodium addition increases leaf herbivory and fungal damage across four grasslands

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