Results 21 to 30 of about 802 (171)

Se estudiaron la morfología de las esporas y el desarrollo de los gametofitos de Thelypteris abbiattii y Thelypteris hispidula de material proveniente de la Reserva Natural Punta Lara (Buenos Aires, Argentina). Las esporas son monoletes, plegadas, con p

Boletín de la Sociedad Argentina de Botánica, 2014
Se estudiaron la morfología de las esporas y el desarrollo de los gametofitos de Thelypteris abbiattii y Thelypteris hispidula de material proveniente de la Reserva Natural Punta Lara (Buenos Aires, Argentina).
Juan Pablo Ramos Giocosa, Gabriel E. Giudice, Laura Pipo, María Luján Luna   +3 more
doaj   +1 more source

Thinking of Melastomataceae: Revisiting Humboldt and Bonpland's Monographie des Melastomacées (1806–1823) from a historical perspective

TAXON, Volume 75, Issue 3, June 2026.
Abstract During their voyage to the Americas (1799–1804), Alexander von Humboldt and Aimé Bonpland described and collected American flora, fauna, minerals and other objects. After returning to Europe, they published several works, including Monographie des Melastomacées, initiated by Bonpland to classify this complex botanical family.
Marina Ramos de Azevedo, Leopoldo C. Baratto   +1 more
wiley   +1 more source

Bacterias promotoras del crecimiento en plantas con potencial agente biocontrolador a Fusarium oxysporum f. sp. Lycopersici, y Moniliophthora roreri

Scientia Agropecuaria, 2019
El objetivo se enfocó en caracterizar el potencial antagonista de PGPR en inhibición al desarrollo micelial, conidios en F. oxysporum y esporas en M. roreri. La técnica de PCR se empleó para la identificación de F. oxysporum y M. roreri.
Jefferson Guato-Molina, Javier Auhing-Arcos, Jorge Crespo-Ávila, Gabriel Esmeraldas-García, Antonio Mendoza-León, Hayron Canchignia-Martínez   +5 more
doaj   +1 more source

Climate adaptation and functional constraints drive pollen evolution in Apiales

New Phytologist, Volume 249, Issue 5, Page 2574-2587, March 2026.
Summary Pollen grains exhibit remarkable morphological diversity, shaped by selective pressures from environmental factors and mechanical constraints. Here, we investigate macroevolutionary patterns of pollen morphology in Apiales, an order of angiosperms with significant ecological and geographical diversity, to disentangle the roles of climate and ...
Jakub Baczyński, Krzysztof Spalik, John M. Burke, Łukasz Banasiak   +3 more
wiley   +1 more source

Evolution of molecular communication in the permanent Azolla symbiosis

New Phytologist, Volume 249, Issue 4, Page 1666-1674, February 2026.
Summary Heritable symbioses exist across eukaryotes with different degrees of intimacy. In most cases, the symbionts are obligate and require inheritance for their survival. On the host side, symbiont retention can facilitate fitness benefits. Only rarely are these symbioses interwoven to the point that host survival relies on the symbiont.
Deren Büyüktaş, Ellen Sigourney Lorberg, Sophie de Vries   +2 more
wiley   +1 more source

Contaminación fúngica ambiental en tres centros de enseñanza primaria del cantón Central de la provincia de Heredia, Costa Rica

Acta Médica Costarricense, 2015
Justificación y objetivo: las esporas fúngicas aéreas son consideradas agentes etiológicos de la rinitis alérgica y el asma. El objetivo del presente estudio fue analizar la contaminación fúngica ambiental en tres centros de enseñanza primaria del cantón
Daniela Jaikel-Víquez, Sofía Hernández-Vargas, Olman Riggioni-Cordero, Ingrid Salas-Campos, Norma Gross-Martínez   +4 more
doaj  

Hongos micorrízicos nativos como promotores de crecimiento en plantas de guayaba (Psidium guajava L.)

Terra Latinoamericana, 2020
En esta investigación se evaluaron diferentes consorcios micorrízicos arbusculares nativos, en el crecimiento de plantas de guayaba (Psidium guajava L.).
Evangelina Esmeralda Quiñones-Aguilar, Gabriel Rincón-Enríquez, Luis López-Pérez   +2 more
doaj   +1 more source

Loss of E3 ligase HvST1 function substantially increases distal crossover frequency

New Phytologist, Volume 249, Issue 3, Page 1325-1341, February 2026.
Summary This study characterizes the function of a grass‐specific E3 ubiquitin ligase, HvST1, in regulating synapsis and crossover (CO) formation during meiosis in barley (Hordeum vulgare). In large‐genome cereals, COs are predominantly restricted to distal chromosomal regions, limiting genetic recombination and breeding flexibility.
Jamie Neil Orr, Sybille Ursula Mittmann, Luke Ramsay, Dominika Lewandowska, Abdellah Barakate, Malcolm Macaulay, Nicola McCallum, Robbie Waugh, Isabelle Colas   +8 more
wiley   +1 more source

An arbuscular mycorrhiza from the 407‐million‐year‐old Windyfield Chert identified through advanced fluorescence and Raman imaging

New Phytologist, Volume 249, Issue 1, Page 448-459, January 2026.
Summary Mycorrhizal associations between fungi and plants are a fundamental aspect of terrestrial ecosystems. Mycorrhizas occur in c. 85% of extant plants, yet their geological record remains sparse. Rare fossil evidence from early terrestrial environments offers crucial insights into these ancient symbioses, but visualizing fossil fungi at the ...
Christine Strullu‐Derrien, Raymond Wightman, Liam Patrick McDonnell, Gareth Evans, Frédéric A. Fercoq, Paul Kenrick, Andrea C. Ferrari, Sebastian Schornack   +7 more
wiley   +1 more source

Dynamic patterns of repeats and retrotransposons in the centromeres of Humulus lupulus L.

New Phytologist, Volume 247, Issue 6, Page 2766-2780, September 2025.
Summary The centromere has a conserved function across eukaryotes; however, the associated DNA sequences exhibit remarkable diversity in both size and structure. In plants, some species possess well‐defined centromeres dominated by tandem satellite repeats and centromeric retrotransposons, while others have centromeric regions composed almost entirely ...
Lucie Horáková, Pavel Jedlička, Radim Čegan, Pavla Navrátilová, Hiroyuki Tanaka, Atsushi Toyoda, Takehiko Itoh, Takashi Akagi, Eiichiro Ono, Vojtěch Hudzieczek, Josef Patzak, Jan Šafář, Roman Hobza, Václav Bačovský   +13 more
wiley   +1 more source