Detection of plant growth enhancing features in psychrotolerant yeasts from Patagonia (Argentina)

Mestre, M. Cecilia; Fontenla, Sonia; Bruzone, María Clara; Fernández, Natalia; Dames, Joanna F.

doi:10.1002/jobm.201500728

Cited by 32 publications

(24 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…for the same niche, but could rather prevent Fusarium infection as they appear to be enriched in healthy plants. Tremellomycete yeasts, including the genus Cryptococcus, have been shown to provide growth enhancement to plants [55]. In fact, the yeast isolate Cryptococcus flavescens, strain OH 182.9, isolated from wheat anthers, reduced Fusarium disease severity and mycotoxin accumulation in wheat and furthermore increased kernel weight compared to the infected control [56,57].…”

Section: Discussionmentioning

confidence: 99%

Fusarium Head Blight Modifies Fungal Endophytic Communities During Infection of Wheat Spikes

et al. 2019

View full text Add to dashboard Cite

Fusarium head blight (FHB) is a devastating disease of wheat heads. It is caused by several species from the genus Fusarium. Several endophytic fungi also colonize wheat spikes asymptomatically. Pathogenic and commensal fungi share and compete for the same niche and thereby influence plant performance. Understanding the natural dynamics of the fungal community and how the pre-established species react to pathogen attack can provide useful information on the disease biology and the potential use of some of these endophytic organisms in disease control strategies. Fungal community composition was assessed during anthesis as well as during FHB attack in wheat spikes during 2016 and 2017 in two locations. Community metabarcoding revealed that endophyte communities are dominated by basidiomycete yeasts before anthesis and shift towards a more opportunistic ascomycete-rich community during kernel development. These dynamics are interrupted when Fusarium spp. colonize wheat spikes. The Fusarium pathogens appear to exclude other fungi from floral tissues as they are associated with a reduction in community diversity, especially in the kernel which they colonize rapidly. Similarly, the presence of several endophytes was negatively correlated with Fusarium spp. and linked with spikes that stayed healthy despite exposure to the pathogen. These endophytes belonged to the genera Cladosporium, Itersonillia and Holtermanniella. These findings support the hypothesis that some naturally occurring endophytes could outcompete or prevent FHB and represent a source of potential biological control agents in wheat.

show abstract

Section: Discussionmentioning

confidence: 99%

Fusarium Head Blight Modifies Fungal Endophytic Communities During Infection of Wheat Spikes

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Soil yeasts solubilize macronutrients such, as P and Ca, making them available for plants (e.g. Fu et al, ; Mestre, Fontenla, Bruzone, Fernández, & Dames, ).…”

Section: Biotechnological and Clinical Relevancementioning

confidence: 99%

“…El‐Tarabily & Sivasithamparam, ; Limtong & Koowadjanakul, ; Streletskii, Kachalkin, Glushakova, Demin, & Chernov, ). Among autochthonous soil yeasts the following species have been studied for IAA synthesis: Goffeauzyma gastrica , Holtermanniella takashiame , Papiliotrema laurentii , Piskurozyma cylindrica , Saitozyma podzolica , Solicoccozyma terrea , Solicoccozyma terricola , Tausonia pullulans and Vanrija albida (Limtong, Kaewwichian, Yongmanitchai, & Kawasaki, ; Mestre et al, ; Streletskii et al, ). High amounts of IAA (>1000 μg/g) have been detected in Saitozyma podzolica and Solicoccozyma terricola (Streletskii et al, and references therein).…”

Section: Biotechnological and Clinical Relevancementioning

confidence: 99%

Yeasts of the soil – obscure but precious

Yurkov

2018

Yeast

129

View full text Add to dashboard Cite

Pioneering studies performed in the nineteenth century demonstrated that yeasts are present in below‐ground sources. Soils were regarded more as a reservoir for yeasts that reside in habitats above it. Later studies showed that yeast communities in soils are taxonomically diverse and different from those above‐ground. Soil yeasts possess extraordinary adaptations that allow them to survive in a wide range of environmental conditions. A few species are promising sources of yeast oils and have been used in agriculture as potential antagonists of soil‐borne plant pathogens or as plant growth promoters. Yeasts have been studied mainly in managed soils such as vineyards, orchards and agricultural fields, and to a lesser extent under forests and grasslands. Our knowledge of soil yeasts is further biased towards temperate and boreal forests, whereas data from Africa, the Americas and Asia are scarce. Although soil yeast communities are often species‐poor in a single sample, they are more diverse on the biotope level. Soil yeasts display pronounced endemism along with a surprisingly high proportion of currently unidentified species. However, like other soil inhabitants, yeasts are threatened by habitat alterations owing to anthropogenic activities such as agriculture, deforestation and urbanization. In view of the rapid decline of many natural habitats, the study of soil yeasts in undisturbed or low‐managed biotopes is extremely valuable. The purpose of this review is to encourage researchers, both biologists and soil scientists, to include soil yeasts in future studies.

show abstract

“…This yeast had been selected due to its ability to produce siderophores and to solubilize inorganic P; these features are directly associated with Fe and P acquisition by plants (Mestre et al, 2016). Increased nutrient access by plants is the most commonly proposed mechanism by which microorganisms promote plant growth (Compant et al, 2010;Hasan and Bano, 2015).…”

Section: The Inoculation Of the Endophytic Bacteria Alone (T3)mentioning

confidence: 99%

Natives helping foreigners?: The effect of inoculation of poplar with patagonian beneficial microorganisms

Mestre

Pastorino

Aparicio³

et al. 2017

J. Soil Sci. Plant Nutr.

Self Cite

View full text Add to dashboard Cite

Inoculation with microorganisms represents an opportunity to enhance tree production, directly affecting plant growth or survival at planting. The aim of the present study was to evaluate the effect of mixed inoculation with native mycorrhizae, two yeasts and one endophytic bacterium, on the growth of two poplar clones commonly used in Patagonia, Argentina. Yeasts and bacteria were selected base on their ability to produce IAA and siderophores, as well as P solubilization in-vitro. A greenhouse trial was performed using hardwood cuttings of Populus nigra 'Italica' and Populus trichocarpa 'SP1456'. Only yeasts modified growth traits, in a host-related response: Tausonia pullulans reduced the root/shoot ratio in P. nigra, and Candida saitoana and increased shoot dry biomass in P. trichocarpa. All plants presented arbuscular mycorrhizal colonization but ectomycorrhizae were absent. Two types of arbuscular mycorrhizal colonization were observed, one of them similar to Glomus tenue. We found a tendency for a higher percentage of arbuscular mycorrhizal colonization when plants were inoculated with T. pullulans. The used of native yeast along with mycorrhizal inocula appears to be a promising tool to improve poplar forestry.

show abstract

Detection of plant growth enhancing features in psychrotolerant yeasts from Patagonia (Argentina)

Cited by 32 publications

References 37 publications

Fusarium Head Blight Modifies Fungal Endophytic Communities During Infection of Wheat Spikes

Fusarium Head Blight Modifies Fungal Endophytic Communities During Infection of Wheat Spikes

Yeasts of the soil – obscure but precious

Natives helping foreigners?: The effect of inoculation of poplar with patagonian beneficial microorganisms

Contact Info

Product

Resources

About