Listar Artículos Científicos por autor
Mostrando publicaciones 1-12 de 12
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A first insight into the structure and function of rhizosphere microbiota in antarctic plants using shotgun metagenomic
Molina-Montenegro, Marco A.; Ballesteros, Gabriel I.; Castro-Nallar, Eduardo; Meneses, Claudio; Gallardo-Cerda, Jorge; Torres-Díaz, Cristian (2019)Antarctic vascular plants such as Deschampsia antarctica (Da) could generate more suitable micro-environmental conditions for the establishment of other plants like Colobanthus quitensis (Cq). Although positive plant–plant ...
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A tradeoff between fitness‐related traits mask facilitation in a semiarid ecosystem
Molina-Montenegro, Marco A.; Baldelomar, Mariela; Atala, Cristian; Torres-Díaz, Cristian (2020)In stressful environments, a nurse plant can ameliorate harsh biotic and abiotic conditions for another plant species that grows within its canopy. This canopy can act as a barrier for herbivores, reducing damage to the ...
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Antarctic root endophytes improve physiological performance and yield in crops under salt stress by enhanced energy production and Na+ sequestration
Molina-Montenegro, Marco A.; Acuña-Rodríguez, Ian S.; Torres-Díaz, Cristian; Gundel, Pedro E.; Dreyer, Ingo (2020)Climatic change is pointed as one of the major challenges for global food security. Based on current models of climate change, reduction in precipitations and in turn, increase in the soil salinity will be a sharp constraint ...
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Functional roles of microbial symbionts in plant cold tolerance
Acuña-Rodríguez, Ian S.; Newsham, Kevin K.; Gundel, Pedro E.; Torres-Díaz, Cristian; Molina-Montenegro, Marco A. (2020)In this review, we examine the functional roles of microbial symbionts in plant tolerance to cold and freezing stresses. The impacts of symbionts on antioxidant activity, hormonal signaling and host osmotic balance are ...
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Fungal symbionts enhance N-uptake for Antarctic plants even in non-N limited soils
Acuña-Rodríguez, Ian S.; Galán, Alexander; Torres-Díaz, Cristian; Atala, Cristian; Molina-Montenegro, Marco A. (2020)Plant-fungi interactions have been identified as fundamental drivers of the plant host performance, particularly in cold environments where organic matter degradation rates are slow, precisely for the capacity of the fungal ...
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Genetic control underlying the flowering-drought tolerance trade-off in the Antarctic plant Colobanthus quitensis
Galleguillos, Carolina; Acuña-Rodríguez, Ian S.; Torres-Díaz, Cristian; Gundel, Pedro E.; Molina-Montenegro, Marco A. (2023)Plants inhabiting environments with stressful conditions often exhibit a low number of flowers, which can be attributed to the energetic cost associated with reproduction. One of the most stressful environments for plants ...
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In silico analysis of metatranscriptomic data from the antarctic vascular plant Colobanthus quitensis: responses to a global warming scenario through changes in fungal gene expression levels
Ballesteros, Gabriel I.; Torres-Díaz, Cristian; Bravo, León A.; Balboa, Karen; Caruso, Carla; Bertini, Laura; Proietti, Silvia; Molina-Montenegro, Marco A. (2020)Maritime Antarctica is one of the most stressful environments for plant life worldwide. However, two vascular plant species (Deschampsia antarctica and Colobanthus quitensis) have been able to colonize this hostile ...
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Isolation and characterization of microsatellites for the endangered endemic tree Nothofagus alessandrii (Nothofagaceae)
Torres-Díaz, Cristian; Valladares, Moisés A.; Molina-Montenegro, Marco A.; Mora-Poblete, Freddy (2021)Nothofagus alessandrii (Nothofagaceae) is one of the most endangered trees from Chile due to high rates of habitat disturbance caused by human activities. Despite its conservation status, few molecular markers are available ...
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Positive interaction between shrubs and native orchids in a Mediterranean ecosystem
Atala, Cristian; Baldelomar, Mariela; Torres-Díaz, Cristian; Pereira, Guillermo; Cacciuttolo, Felipe; Vargas, Reinaldo; Molina-Montenegro, Marco A. (2020)In the Mediterranean portion of Central Chile, where anthropic disturbances are common and severe, precipitations could drastically decrease and temperatures increase due to climate change. In this ecological context, ...
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Root endophytic Penicillium promotes growth of Antarctic vascular plants by enhancing nitrogen mineralization
Oses-Pedraza, Rómulo; Torres-Díaz, Cristian; Lavín, Paris; Retamales-Molina, Patricio; Atala, Cristian; Gallardo-Cerda, Jorge; Acuña-Rodríguez, Ian S.; Molina-Montenegro, Marco A. (2020)Fungal endophyte associations have been suggested as a possible strategy of Antarctic vascular plants for surviving the extreme environmental conditions of Antarctica. However, the mechanisms by which this occurs are still ...
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Symbiotic interaction enhances the recovery of endangered tree species in the fragmented maulino forest
Torres-Díaz, Cristian; Valladares, Moisés A.; Acuña-Rodríguez, Ian S.; Ballesteros, Gabriel I.; Barrera, Andrea; Atala, Cristian; Molina-Montenegro, Marco A. (2021)Beneficial plant-associated microorganisms, such as fungal endophytes, are key partners that normally improve plant survival under different environmental stresses. It has been shown that microorganisms from extreme ...
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The role of the soil microbiome in the colonisation of glacier forefields by Antarctic pearlwort (Colobanthus quitensis) under current and future climate change scenarios
Acuña-Rodríguez, Ian S; Newsham, Kevin K.; Convey, Peter; Biersma, Elisabeth M.; Ballesteros, Gabriel I.; Torres-Díaz, Cristian; Goodall-Copestake, William P; Molina-Montenegro, Marco A. (2024)Glacier retreat in cold regions exposes new terrain for plant colonization. However, the roles of soil microbiomes in plant establishment and performance on newly-exposed forefields have rarely been assessed. Here, we ...