Metabolomic Profiling and Lipid Composition of Arctic and Antarctic Strains of Micromycetes Geomyces pannorum and Thelebolus microsporus Grown at Different Temperatures

Sazanova, Katerina V.; Senik, Svetlana V.; Кirtsideli, I. Yu.; Шаварда, А. Л.

doi:10.1134/s0026261719030111

Cited by 15 publications

(9 citation statements)

References 26 publications

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“…However, during wintering, environmental factors also influence the biosynthesis of this disaccharide. Interesting, that the significantly accumulation of trehalose in the Arctic and Antarctic strains of micromycetes growing at low temperatures was shown [8]. Thus, plants inoculated by C. complanata MF-32.121 successfully survives wintering in the conditions of Saint Petersburg area.…”

Section: Resultsmentioning

confidence: 96%

Wintering ability ofCalophoma complanataunder the conditions of Saint Petersburg area

et al. 2020

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Giant hogweed is one of the most widespread invasive alien species of the Baltic region. The pycnidial fungus, Calophoma complanata is being evaluated as a potential bioherbicide for control of Heracleum sosnowskyi. The aim of this work is to evaluate an ability of the potential mycoherbicide C. complanata MF-32.121 to overwinter in the conditions of Saint Petersburg area. Plants inoculated by C. complanata MF-32.121 successfully survives wintering in the conditions of Saint Petersburg area. Pearl barley covered by C. complanata MF-32.121 mycelium successfully survives wintering in the same conditions as well. When favorable conditions have arisen, the C. complanata MF-32.121 mycelium is capable to infecting young giant hogweed. Moreover, it was revealed that a change in the biochemical composition, namely, an increase in the level of trehalose, contributes to the manifestation of a greater tolerance of C. complanata MF-32.121 mycelium to temperature-humidity conditions.

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Section: Resultsmentioning

confidence: 96%

Wintering ability ofCalophoma complanataunder the conditions of Saint Petersburg area

et al. 2020

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“…The highest PC/PE value is characteristic of lamellar membrane structures, while a decrease in this ratio shows the formation of various inverted hexagonal structures in the membrane leading to membrane packing defects [ 12 ]. PC/PE ratio was shown to decrease during cold acclimation of plants [ 13 , 14 ] and fungi [ 15 , 16 ].…”

Section: Discussionmentioning

confidence: 99%

Role of Lipids of the Evergreen Shrub Ephedra monosperma in Adaptation to Low Temperature in the Cryolithozone

Nokhsorov

Senik

Софронова

et al. 2022

Plants

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Lipids are the fundamental components of cell membranes and they play a significant role in their integrity and fluidity. The alteration in lipid composition of membranes has been reported to be a major response to abiotic environmental stresses. Seasonal dynamics of membrane lipids in the shoots of Ephedra monosperma J.G. Gmel. ex C.A. Mey. growing in natural conditions of permafrost ecosystems was studied using HPTLC, GC-MS and ESI-MS. An important role of lipid metabolism was established during the autumn-winter period when the shoots of the evergreen shrub were exposed to low positive (3.6 °C), negative (−8.3 °C) and extremely low temperatures (−38.4 °C). Maximum accumulation of phosphatidic acid (PA), the amount of which is times times greater than the sum of phosphatidylcholine and phosphatidylethanolamine (PC + PE) was noted in shoots of E. monosperma in the summer-autumn period. The autumn hardening period (3.6 °C) is accompanied by active biosynthesis and accumulation of membrane lipids, a decrease of saturated 34:1 PCs, 34:1 PEs and 34:1 PAs, and an increase in unsaturated long-chain 38:5 PEs, 38:6 PEs, indicating that the adaptation of E. monosperma occurs not at the level of lipid classes but at the level of molecular species. At a further decrease of average daily air temperature in October (−8.3 °C) a sharp decline of PA level was registered. At an extreme reduction of environmental temperature (−38.4 °C) the content of non-bilayer PE and PA increases, the level of unsaturated fatty acids (FA) rises due to the increase of C18:2(Δ9,12) and C18:3(Δ9,12,15) acids and the decrease of C16:0 acids. It is concluded that changes in lipid metabolism reflect structural and functional reorganization of cell membranes and are an integral component of the complex process of plant hardening to low temperatures, which contributes to the survival of E. monosperma monocotyledonous plants in the extreme conditions of the Yakutia cryolithozone.

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Section: Discussionmentioning

confidence: 99%

“…Pseudogymnoascus spp. have a global distribution, with most species being saprophytic exhibiting psychrophilic or psychrotolerant capabilities with P. pannorum present within temperate soils and permafrost within the Arctic and Antarctic [40,41]. The fungus has been identified from the rhizosphere of peat bog plants, the roots of Erica arborea and is described as an endophyte of Colobanthus quitensis, Rhododendron and Vaccinium [42][43][44][45].…”

Section: Discussionmentioning

confidence: 99%

Development of Plant–Fungal Endophyte Associations to Suppress Phoma Stem Canker in Brassica

et al. 2021

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Endophytic microorganisms are found within the tissues of many plants species, with some conferring several benefits to the host plant including resistance to plant diseases. In this study, two putative endophytic fungi that were previously isolated from wild seeds of Brassica, identified as Beauveria bassiana and Pseudogymnoascus pannorum, were inoculated into cultivars of three Brassica species—Brassica napus, Br. rapa and Br. oleracea. Both fungal endophytes were reisolated from above- and below-ground tissues of inoculated plants at four different plant-growth stages, including cotyledon, one-leaf, two-leaf, and four-leaf stages. None of the plants colonised by these fungi exhibited any obvious disease symptoms, indicating the formation of novel mutualistic associations. These novel plant–endophyte associations formed between Brassica plants and Be. bassiana significantly inhibited phoma stem canker, a devastating disease of Brassica crops worldwide, caused by the fungal pathogen Leptosphaeria maculans. The novel association formed with P. pannorum significantly suppressed the amount of disease caused by L. maculans in one out of two experiments. Although biological control is not a new strategy, endophytic fungi with both antiinsect and antifungal activity are a highly conceivable, sustainable option to manage pests and diseases of economically important crops.

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Metabolomic Profiling and Lipid Composition of Arctic and Antarctic Strains of Micromycetes Geomyces pannorum and Thelebolus microsporus Grown at Different Temperatures

Cited by 15 publications

References 26 publications

Wintering ability ofCalophoma complanataunder the conditions of Saint Petersburg area

Wintering ability ofCalophoma complanataunder the conditions of Saint Petersburg area

Role of Lipids of the Evergreen Shrub Ephedra monosperma in Adaptation to Low Temperature in the Cryolithozone

Development of Plant–Fungal Endophyte Associations to Suppress Phoma Stem Canker in Brassica

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