Results 61 to 70 of about 33,059,844 (265)

Identification of Colletotrichum spaethianum causing sugar beet leaf spot in North Dakota, USA [PDF]

Journal of Plant Protection Research
Sugar beet leaves with dark brown to blackish, necrotic lesions were found in a grower’s field in Casselton, North Dakota, USA in August 2021. Morphological features of the isolates obtained in growth media from the diseased samples were observed and ...
M.Z.R. Bhuiyan Ziaur, Dilip Kumar Lakshman, Adnan Ismaiel, Prashanta Bhui, Mohamed Khan   +4 more
doaj   +1 more source

Saturation in qualitative research: exploring its conceptualization and operationalization

Quality & Quantity: International Journal of Methodology, 2017
Saturation has attained widespread acceptance as a methodological principle in qualitative research. It is commonly taken to indicate that, on the basis of the data that have been collected or analysed hitherto, further data collection and/or analysis ...
B. Saunders, J. Sim, Tom Kingstone, S. Baker, J. Waterfield, B. Bartlam, H. Burroughs, Clare Jinks   +7 more
semanticscholar   +1 more source

Kalymmatonema gen. nov. (Scytonemataceae, Cyanobacteria): A desert soil crust genus previously identified as Scytonema hyalinum, with description of seven species new to science

Journal of Phycology, Volume 61, Issue 5, Page 1225-1250, October 2025.
Abstract Numerous cyanobacterial strains previously identified as Scytonema hyalinum were determined to be phylogenetically distant from the type species of Scytonema, S. hofmannii. Morphological and molecular evidence suggests this distinct clade necessitates placement in a new genus, and we have described Kalymmatonema gen. nov. herein. Kalymmatonema
Markéta Bohunická, Jeffrey R. Johansen, Nicole Pietrasiak, Brian M. Jusko, Melaku Mesfin, Itzel Becerra‐Absalón   +5 more
wiley   +1 more source

On the Difference equation x_n+ = ax_n - bx_n/(cx_x - dx_n-1)

Advances in Difference Equations, 2006
We investigate some qualitative behavior of the solutions of the difference equation xn+ = axn - bxn/(cxx - dxn-1), n = 0,1,..., where the initial conditions x-1, x0 are arbitrary real numbers and a, b, c, d are positive constants.
Elabbasy EM, El-Metwally H, Elsayed EM
openaire   +1 more source

The phylogenetic placement of a new species of Amomum (Zingiberaceae) from the Philippines

Nordic Journal of Botany, Volume 2025, Issue 9, September 2025.
During recent fieldwork in Pasonanca Natural Park, Zamboanga City, Philippines, we collected a ginger species belonging to Amomum sensu stricto that resembled the Bornean endemic Amomum stenosiphon. In phylogenetic analyses based on ITS trnK/matK sequences, the Philippine collections formed a monophyletic group but did not group with A.
Rudolph Valentino A. Docot, Lyle Christian P. Santiago, Kean Roe F. Mazo, Mark Gregory Q. Rule, Thomas Haevermans, Axel Dalberg Poulsen   +5 more
wiley   +1 more source

A Long‐Term Ecological Research Data Set From the Marine Genetic Monitoring Program ARMS‐MBON 2018–2020

Molecular Ecology Resources, Volume 25, Issue 4, May 2025.
ABSTRACT Molecular methods such as DNA/eDNA metabarcoding have emerged as useful tools to document the biodiversity of complex communities over large spatio‐temporal scales. We established an international Marine Biodiversity Observation Network (ARMS‐MBON) combining standardised sampling using autonomous reef monitoring structures (ARMS) with ...
Nauras Daraghmeh, Katrina Exter, Justine Pagnier, Piotr Balazy, Ibon Cancio, Giorgos Chatzigeorgiou, Eva Chatzinikolaou, Maciej Chelchowski, Nathan Alexis Mitchell Chrismas, Thierry Comtet, Thanos Dailianis, Klaas Deneudt, Oihane Diaz de Cerio, Markos Digenis, Vasilis Gerovasileiou, José González, Laura Kauppi, Jon Bent Kristoffersen, Piotr Kukliński, Rafał Lasota, Liraz Levy, Magdalena Małachowicz, Borut Mavrič, Jonas Mortelmans, Estefania Paredes, Anita Poćwierz‐Kotus, Henning Reiss, Ioulia Santi, Georgia Sarafidou, Grigorios Skouradakis, Jostein Solbakken, Peter A. U. Staehr, Javier Tajadura, Jakob Thyrring, Jesus S. Troncoso, Emmanouela Vernadou, Frederique Viard, Haris Zafeiropoulos, Małgorzata Zbawicka, Christina Pavloudi, Matthias Obst   +40 more
wiley   +1 more source

A new distribution report of the Critically Endangered Amomum kingii Baker (Zingiberaceae) outside Sikkim, India

Journal of Threatened Taxa, 2017
In this correspondence, the distribution of a population of Amomum kingii Baker, a Critically Endangered species of Zingiberaceae, is reported from Darjeeling District, West Bengal, India.  Previously, this plant was described only from Sikkim, India and
Sreetama Bhadra, Maumita Bandyopadhyay
doaj   +1 more source

'Dam it – it's easy!' – or is it? [PDF]

British Dental Journal, 2017
Dentists the world over seem to still have issues in making rubber dam application a routine part of practice, even in situations where patients are obviously at risk. In this article, the author - who has delivered hundreds of seminars and hands on tuition in a quick and easy method of dam application (the 'Dam it - it's Easy!' series) to dentists in ...
openaire   +2 more sources

Phylogenetics and reticulation among koelerioid clades, part I: Contraction of Trisetum, expansion of Acrospelion, Graphephorum, and Tzveleviochloa; Graciliotrisetum gen. nov. and resurrection of Aegialina (Poaceae, Pooideae, Poeae, Aveninae)

Journal of Systematics and Evolution, Volume 63, Issue 3, Page 629-655, May 2025.
Phylogenetic analysis of Koeleriinae clades A and B yielded mostly congruent topologies in nuclear and plastid trees. However, several lineages resolved in strikingly incongruent positions in trees from different data sets, suggesting a reticulate origin for these taxa.
Patricia Barberá, Robert J. Soreng, Paul M. Peterson, Joan Garcia‐Porta, Konstantin Romaschenko, Carlos Aedo, Alejandro Quintanar   +6 more
wiley   +1 more source

Teknonaturalist: A Snakemake Pipeline for Assessing Fungal Diversity From Plant Genome Bycatch

Molecular Ecology Resources, Volume 25, Issue 3, April 2025.
ABSTRACT Relatively little is known of the host associations and compatibility of fungal plant pathogens and endophytes. Publicly available plant genomic DNA can be mined to detect incidental fungal DNA, but taxonomic assignment can be challenging due to short lengths and variable discriminative power among different genomic regions and taxa.
Nicholas W. Bard, T. Jonathan Davies, Quentin C. B. Cronk   +2 more
wiley   +1 more source