Results 61 to 70 of about 683 (168)

First Report of Colletotrichum siamense and Description of Lasiodiplodia adeniicola sp. nov. Causing Leaf Spot on Desert Rose in Brazil

open access: yesJournal of Phytopathology, Volume 173, Issue 6, November/December 2025.
ABSTRACT In July 2021, desert rose plants were consistently observed with symptoms of brown spots on the leaves, which coalesced and promoted leaf fall. The causal agent of the disease was unknown. This study aimed to identify the pathogen responsible for the symptoms through morphological and molecular characterisation, as well as pathogenicity tests.
Alan Izaías dos Santos Carvalho   +5 more
wiley   +1 more source

Additions to the Vascular Flora of the Pasvik Strict Nature Reserve, Murmansk Region

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
Information about 24 vascular plant species found for the first time in the Pasvik strict nature reserve in 2008–2014 is reported. Seventeen of the species: Woodsia glabella, Botrychium multifidum, Equisetum × litorale, Equisetum × trachyodon ...
Alexey Kravchenko, Oleg Kuznetsov
doaj   +1 more source

Vegetation and environmental dynamics in the central part of the Kola Peninsula during the past 13.3 ka as reflected by ancient plant DNA on sediments from Lake Imandra

open access: yesJournal of Quaternary Science, Volume 40, Issue 6, Page 1070-1096, August 2025.
ABSTRACT The first high‐resolution reconstruction of the vegetation and environmental changes during the last ca 13 300 cal a BP in the central part of the Kola Peninsula (NW Russia) was reconstructed based on sedimentary ancient DNA (sedaDNA) metabarcoding on sediment core Co1410 from Lake Imandra.
Anastasia Poliakova   +5 more
wiley   +1 more source

Assessment of the Potential Biological Activity of Low Molecular Weight Metabolites of Freshwater Macrophytes with QSAR

open access: yesScientifica, 2016
The paper focuses on the assessment of the spectrum of biological activities (antineoplastic, anti-inflammatory, antifungal, and antibacterial) with PASS (Prediction of Activity Spectra for Substances) for the major components of three macrophytes ...
Evgeny A. Kurashov   +3 more
doaj   +1 more source

Changes in the Size Distribution of a Freshwater Fish After Lake Outlet Dam Removal: A Pilot Study

open access: yesEcohydrology, Volume 18, Issue 5, July‐August 2025.
ABSTRACT The size structure of populations is crucial for predator–prey dynamics and ecosystem function. Anthropogenic pressures such as habitat alteration may affect the demography of many species. We investigated the size structure of European perch (Perca fluviatilis) populations in lakes before and after dam removal by using the planned removals of
Johan Watz   +7 more
wiley   +1 more source

Environmental gradients strongly affect functional composition and biomass C stocks within aquatic plant meadows

open access: yesEcosphere, Volume 16, Issue 7, July 2025.
Abstract Ecological succession provides a critical framework to evaluate and predict the effects of successional dynamics within plant communities on ecosystem functions, which has become increasingly relevant in recent years as humans adapt to a world that is progressively shaped by anthropogenic disturbances.
Roel Lammerant   +7 more
wiley   +1 more source

Colletotrichum siamense Identified as the Causal Agent of Anthracnose in Eugenia dysenterica in the Brazilian Cerrado

open access: yesJournal of Phytopathology, Volume 173, Issue 4, July/August 2025.
ABSTRACT Eugenia dysenterica, commonly known as cagaiteira, is a plant native to the Cerrado biome that produces edible fruits and has medicinal properties. Cagaita fruit exhibiting anthracnose symptoms were collected from naturally occurring plants in native fragments of the Cerrado Biome at Gurupi, Tocantins, Brazil.
Luana B. Montelo   +9 more
wiley   +1 more source

A monograph of Nuphar (Nymphaeaceae)

open access: yes, 2007
The genus Nuphar (Nymphaeaceae) is described to include 11 species native to fresh waters of the Northern Hemisphere. This assessment utilized morphometric analyses, cladistic analyses, evaluation of randomly amplified polymorphic DNA, and seed and ...
Padgett, Donald
core   +1 more source

Microbial Communities Drive Methane Fluxes From Floodplain Lakes—A Hydrological Gradient Perspective

open access: yesEnvironmental Microbiology, Volume 27, Issue 6, June 2025.
This study examined the impact of methanotrophic bacteria (MOB) and methanogenic archaea (mGen) on CH4 emissions from oxbow lakes at various successional stages, analysing their interactions with physicochemical properties of water. The microbial structure, defined by the MOB/mGen ratio, shows emission rates of CH4 specific to each oxbow type.
Sylwia Lew   +2 more
wiley   +1 more source

From Stream to Bloom: Exploring the Potential Role of Aquatic Insects for Pollination in Wetland Environments

open access: yesJournal of Applied Entomology, Volume 149, Issue 5, Page 711-724, June 2025.
ABSTRACT The substantial loss of insects we are experiencing today has been highlighted all over the world. There is a growing concern about the global decline of pollinators and its impact on terrestrial and agricultural ecosystems, but the focus of scientists towards bees remains the rule.
Cassandre Murail   +6 more
wiley   +1 more source

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