Listar Artículos Científicos por autor
Mostrando publicaciones 1-10 de 10
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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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Genotoxicity and reproductive risk in workers exposed to pesticides in rural areas of Curicó, Chile: a pilot study
Landeros, Natalia; Duk, Soledad; Márquez, Carolina; Inzunza, Bárbara; Acuña-Rodríguez, Ian S.; Zúñiga-Venegas, Liliana A. (2022)Significant risks to human health have been associated with chronic exposure to low doses of pesticides, a situation which may be frequent among agricultural workers. In this context, and regarding the agricultural-based ...
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Genotoxicity of oxidative stress and UV-B radiation in Antarctic vascular plants
Acuña-Rodríguez, Ian S.; Zúñiga-Venegas, Liliana A.; Molina-Montenegro, Marco A. (2021)For plants, reactive oxygen species (ROS) and ultraviolet B radiation (UV-B) stand out as important genotoxic agents. Hence, the genetic damage among the Antarctic vascular flora, whose individuals frequently experience ...
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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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Source and acquisition of rhizosphere microbes in Antarctic vascular plants
Guajardo-Leiva, Sergio; Alarcón, Jaime; Gutzwiller, Florence; Gallardo-Cerda, Jorge; Acuña-Rodríguez, Ian S.; Molina-Montenegro, Marco A.; Crandall, Keith A; Pérez-Losada, Marcos; Castro-Nallar, Eduardo (2022)Rhizosphere microbial communities exert critical roles in plant health, nutrient cycling, and soil fertility. Despite the essential functions conferred by microbes, the source and acquisition of the rhizosphere are not ...
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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 "Trojan horse" strategy: seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in maritime Antarctica
Molina-Montenegro, Marco A.; Ballesteros, Gabriel I.; Acuña-Rodríguez, Ian S; Pertierra, Luis R.; Greve, Michelle; Richardson, David M.; Convey, Peter; Biersma, Elisabeth M.; Goodall-Copestake, William P; Newsham, Kevin K. (2023)Aim: Poa annua L. (annual bluegrass) is presently the sole invasive vascular plant spe-cies to have successfully established in Maritime Antarctica, where it poses a sig-nificant conservation threat to native plant species. ...
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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 ...