The seasonal dynamics of yeast communities in the rhizosphere of soddy-podzolic soils

Golubtsova, Yu. V.; Glushakova, A. M.; Chernov, I. Yu.

doi:10.1134/s1064229307080108

Cited by 22 publications

(11 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They were also found to inhabit densely vegetated soils, including forest, podzolic and sod-podzolic soils, in regions with tropical, temperate and cold climates (Vishniac 2006; Fonseca et al 2011; Sugita 2011). Likewise, all yeast species found in this study, were also currently found as a part of yeast diversity in soil ecosystems (Golubev 1984; Maksimova and Cherov 2003; Wuczkowski and Prillinger 2004; Botha 2006; Golubtsova et al 2006; Lynch and Thorn 2006; Vishniac 2006; Golubev and Scorzetti 2010; Mestre et al 2011; Yurkov et al 2011, 2012, 2016; Buzzini et al 2012). As previously reported, soil yeasts can contribute to essential soil ecological processes, i.e.…”

Section: Discussionsupporting

confidence: 74%

Seasonal and altitudinal changes of culturable bacterial and yeast diversity in Alpine forest soils

et al. 2016

View full text Add to dashboard Cite

The effect of altitude and season on abundance and diversity of the culturable heterotrophic bacterial and yeast community was examined at four forest sites in the Italian Alps along an altitude gradient (545–2000 m). Independently of altitude, bacteria isolated at 0 °C (psychrophiles) were less numerous than those recovered at 20 °C. In autumn, psychrophilic bacterial population increased with altitude. The 1194 bacterial strains were primarily affiliated with the classes Alpha-, Beta-, Gammaproteobacteria, Spingobacteriia and Flavobacteriia. Fifty-seven of 112 operational taxonomic units represented potential novel species. Strains isolated at 20 °C had a higher diversity and showed similarities in taxa composition and abundance, regardless of altitude or season, while strains isolated at 0 °C showed differences in community composition at lower and higher altitudes. In contrast to bacteria, yeast diversity was season-dependent: site- and altitude-specific effects on yeast diversity were only detected in spring. Isolation temperature affected the relative proportions of yeast genera. Isolations recovered 719 strains, belonging to the classes Dothideomycetes, Saccharomycetes, Tremellomycetes and Mycrobotryomycetes. The presence of few dominant bacterial OTUs and yeast species indicated a resilient microbial population that is not affected by season or altitude. Soil nutrient contents influenced significantly abundance and diversity of culturable bacteria, but not of culturable yeasts.Electronic supplementary materialThe online version of this article (doi:10.1007/s00792-016-0874-2) contains supplementary material, which is available to authorized users.

show abstract

Section: Discussionsupporting

confidence: 74%

Seasonal and altitudinal changes of culturable bacterial and yeast diversity in Alpine forest soils

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Development of a fungus was also shown in old EFNs of Hymenaeae stigonocarpa/Fabaceae ( Paiva and Machado, 2006). Most probably, the fungi use the plant exudates, they may stimulate metabolic process, and can compete with pathogenic microorganisms ( Golubtsova et al, 2007). This has still to be studied in more detail.…”

Section: Discussionmentioning

confidence: 95%

Distribution, structural and ecological aspects of the unusual leaf nectaries of Calolisianthus species (Gentianaceae)

Delgado

Silva

Báo

et al. 2011

Flora - Morphology, Distribution, Functional Ecology of Plants

View full text Add to dashboard Cite

Nectaries in leaves of Gentianaceae have been poorly studied. The present study aims to describe the distribution, anatomy, and ecological aspects of extrafloral nectaries (EFNs) of three Calolisianthus species and in particular the ultrastructure of EFNs in Calolisianthus speciosus during leaf development, discussing its unusual structure. Leaves of Calolisianthus species were fixed and processed by the usual methods for studies using light, scanning microscopy and transmission electron microscopy (TEM). Ion chromatography was used to analyze the nectar exudates of C. speciosus. The distribution patterns of nectar secretion units were analysed by ANOVA and t-tests. Two EFNs that can be seen macroscopically were observed at the bases of C. speciosus and C. pendulus leaves. Such large nectaries are absent there in C. amplissimus. Another similarly large EFN is observed at the apex of each leaf in all species. The EFNs at the base of the young leaves in C. speciosus are visited by ants during the rainy season. EFNs are formed by several nectar secretory units (nectarioles) that are present throughout the leaves. Each nectariole is formed by rosette cells with a central channel from which the nectar is released. Channels of old C. speciosus and C. pendulus EFNs were obstructed by fungi. TEM of EFNs in young leaves showed cytoplasms with secretion, small vacuoles, mitochondria, cell wall ingrowth, and plasmodesmata. TEM of EFNs in old leaves demonstrated dictyosomes, plastids, mitochondria, segments of endoplasmatic reticulum, and lipid droplets. The nectar contains sucrose, glucose and fructose.

show abstract

“…A few studies suggested that seasonal changes affect yeast community composition in beech forest soils (e.g. Jensen 1963;Yurkov et al 2011) or in rhizosphere of two herbaceous plants in a birch forest (Golubtsova et al 2007). However, neither of the afore-mentioned studies addressed the influence of repeated sampling on total yeast diversity values and the proportion of newly discovered species with every consecutive sampling.…”

Section: Introductionmentioning

confidence: 99%

Yeast diversity and species recovery rates from beech forest soils

et al. 2016

View full text Add to dashboard Cite

The seasonal dynamics of yeast communities in the rhizosphere of soddy-podzolic soils

Cited by 22 publications

References 3 publications

Seasonal and altitudinal changes of culturable bacterial and yeast diversity in Alpine forest soils

Seasonal and altitudinal changes of culturable bacterial and yeast diversity in Alpine forest soils

Distribution, structural and ecological aspects of the unusual leaf nectaries of Calolisianthus species (Gentianaceae)

Yeast diversity and species recovery rates from beech forest soils

Contact Info

Product

Resources

About