Oomycete Diversity and Ecology in Declining Alder Stands in Switzerland DOI Creative Commons

Goda Mizerienė,

Vaidotas Lygis, Simone Prospero

и другие.

Microbial Ecology, Год журнала: 2025, Номер 88(1)

Опубликована: Май 22, 2025

Abstract In this study, we assessed the occurrence and diversity of four oomycete genera ( Phytophthora , Phytopythium Pythium Globisporangium ) in 13 declining alder Alnus glutinosa A. incana stands Switzerland. For this, sampled analyzed soil from tree rhizosphere, water streams rivers along which were located, symptomatic bark. The overall isolation rate was 47.2%, with a total 400 isolates recovered at all sites. highest incidence samples (baiting, 82.5% rate), followed by 14.7%), bark (direct isolation, 2.7%). Of isolates, 90.3% could be successfully assigned to known species, for 23 species identified, including both preferential saprotrophs pathogens. Among genera, most abundant 273 (75.6%), . Oomycete showed significant variation among substrates. Only one species— lacustris —was substrates, while 16 restricted specific substrate, mainly soil. rhizosphere trees harbored diverse community, highlighting once again importance as reservoir these microorganisms. two isolated lesions, namely, P. × alni causal agent decline, low recovery might due attempts isolate it old, inactive but may also suggest that decline caused other oomycetes infecting root system trees.

Язык: Английский

Biodiversity in mountain soils above the treeline DOI Creative Commons
Nadine Praeg, Michael Steinwandter, Davnah Urbach

и другие.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also case for soils, but no study to date provided an overall synthesis of current state knowledge. Here we fill this gap with a first global analysis published research on cryptogams, microorganisms, and fauna soils above treeline, structured Based corpus almost 1400 publications expertise 37 soil scientists worldwide, summarise what known about distribution patterns each these organismal groups, specifically along elevation, provide overview available knowledge drivers explaining their changes. In particular, document elevation‐dependent decrease faunal while cryptogams there initial increase followed by towards nival belt. Thus, our data confirm key role that elevation plays shaping biodiversity organisms soils. The response prokaryote turn, was more diverse, whereas fungal appeared be substantially influenced plants. As far as available, describe characteristics, adaptations, functions species, despite lack ecological information uncultivated majority prokaryotes, fungi, protists, illustrate remarkable unique life forms histories encountered alpine By applying rule‐ well pattern‐based literature‐mining approaches semi‐quantitative analyses, identified hotspots European Alps Central Asia revealed significant gaps taxonomic coverage, particularly among biocrusts, fauna. We further report thematic priorities treeline identify unanswered questions. Building upon outcomes synthesis, conclude set opportunities worldwide. Soils fulfil critical make essential contributions land. Accordingly, seizing closing appears crucial enable science‐based decision making regions formulating laws guidelines support conservation targets.

Язык: Английский

Процитировано

1
Diversity and Distribution of Phytophthora Species Along an Elevation Gradient in Natural and Semi-Natural Forest Ecosystems in Portugal DOI Creative Commons
Carlo Bregant, Eduardo Batista,

Sandra Hilário

и другие.

Pathogens, Год журнала: 2025, Номер 14(1), С. 103 - 103

Опубликована: Янв. 20, 2025

Globally, forests are constantly threatened by a plethora of disturbances natural and anthropogenic origin, such as climate change, forest fires, urbanization, pollution. Besides the most common stressors, during last few years, Portuguese have been impacted severe decline phenomena caused invasive pathogens, many which belong to genus Phytophthora. The Phytophthora includes large number species that invading ecosystems worldwide, chiefly consequence global trade human activities. This paper reports results survey diversity in semi-natural Portugal along an elevation gradient. Isolations performed from 138 symptomatic plant tissues rhizosphere samples collected 26 yielded total 19 belonging 6 phylogenetic clades, including P. cinnamomi (36 isolates), multivora (20), plurivora (9), cactorum (8), lacustris pseudocryptogea amnicola (6), hedraiandra pseudosyringae (5), thermophila bilorbang (4), inundata asparagi (3), citricola gonapodyides rosacearum chlamydospora (2), pachypleura syringae (1). Overall, data obtained highlight widespread occurrence sea level mountain habitats. pathogenicity tests carried out on 2-year-old chestnut plants confirmed key role recrudescence ink disease additional risk posed pachypleura, plurivora, forests. Finally, three species, citricola, hedraiandra, reported for first time Portugal.

Язык: Английский

Процитировано

0
Oomycete diversity and ecology in declining alder stands in Switzerland DOI

Mizeriene Goda,

Vaidotas Lygis,

Prospero Simone

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Abstract In this study we assessed the occurrence and diversity of four oomycete genera (Phytophthora, Phytopythium, Pythium Globisporangium) in 13 declining alder (Alnus glutinosa A. incana) stands Switzerland. For this, sampled analysed soil from tree rhizosphere, water streams rivers along which were located, symptomatic bark. The overall isolation rate was 47.2%, with a total 400 isolates recovered at all sites. highest incidence samples (baiting, 82.5% rate), followed by 14.7%), bark (direct isolation, 2.7%). Of isolates, 90.3% could be successfully assigned to known species, for 23 species identified, including both preferential saprotrophs pathogens. Among genera, Phytophthora most abundant 273 (75.6%), Globisporangium. Oomycete showed significant variation among substrates. Only one – Phytophthora lacustris substrates, while 16 restricted specific substrate, mainly soil. rhizosphere trees harboured diverse community, highlighting once again importance as reservoir these microorganisms. two isolated lesions, namely, P. ×alni, causal agent decline, lacustris. low recovery ×alni might due attempts isolate it old, inactive but may also suggest that decline caused other oomycetes infecting root system trees.

Язык: Английский

Процитировано

0
Oomycete Diversity and Ecology in Declining Alder Stands in Switzerland DOI Creative Commons

Goda Mizerienė,

Vaidotas Lygis, Simone Prospero

и другие.

Microbial Ecology, Год журнала: 2025, Номер 88(1)

Опубликована: Май 22, 2025

Abstract In this study, we assessed the occurrence and diversity of four oomycete genera ( Phytophthora , Phytopythium Pythium Globisporangium ) in 13 declining alder Alnus glutinosa A. incana stands Switzerland. For this, sampled analyzed soil from tree rhizosphere, water streams rivers along which were located, symptomatic bark. The overall isolation rate was 47.2%, with a total 400 isolates recovered at all sites. highest incidence samples (baiting, 82.5% rate), followed by 14.7%), bark (direct isolation, 2.7%). Of isolates, 90.3% could be successfully assigned to known species, for 23 species identified, including both preferential saprotrophs pathogens. Among genera, most abundant 273 (75.6%), . Oomycete showed significant variation among substrates. Only one species— lacustris —was substrates, while 16 restricted specific substrate, mainly soil. rhizosphere trees harbored diverse community, highlighting once again importance as reservoir these microorganisms. two isolated lesions, namely, P. × alni causal agent decline, low recovery might due attempts isolate it old, inactive but may also suggest that decline caused other oomycetes infecting root system trees.

Язык: Английский

Процитировано

0