Results 1 to 10 of about 923 (164)

Convergent losses of arbuscular mycorrhizal symbiosis in carnivorous plants. [PDF]

open access: yesNew Phytol
Summary Most land plants form the ancient arbuscular mycorrhizal (AM) symbiosis, while carnivory is a younger trait that evolved in several angiosperm orders. The two biotic interactions similarly help plants acquire mineral nutrients, raising the question of whether they can coexist.
Montero H, Freund M, Fukushima K.
europepmc   +2 more sources

An arbuscular mycorrhiza from the 407-million-year-old Windyfield Chert identified through advanced fluorescence and Raman imaging. [PDF]

open access: yesNew Phytol
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 ...
Strullu-Derrien C   +7 more
europepmc   +2 more sources

Chemical ecology of symbioses in cycads, an ancient plant lineage. [PDF]

open access: yesNew Phytol
Summary Cycads are an ancient lineage of gymnosperms that maintain a plethora of symbiotic associations from across the tree of life. They have myriad morphological, structural, physiological, chemical, and behavioral adaptations that position them as a unique system to study the evolution, ecology, and mechanism of symbiosis.
Salzman S   +6 more
europepmc   +2 more sources

Robotics to enable older adults to remain living at home. [PDF]

open access: yesJ Aging Res, 2012
Given the rapidly ageing population, interest is growing in robots to enable older people to remain living at home. We conducted a systematic review and critical evaluation of the scientific literature, from 1990 to the present, on the use of robots in aged care.
Pearce AJ   +6 more
europepmc   +2 more sources

Historia de la investigación en la simbiosis leguminosa-bacteria: una perspectiva didáctica

open access: yesArbor, 2016
Después de los cereales, las leguminosas constituyen la segunda familia en importancia para la alimentación humana y animal. Sin embargo, en contraste con ellos, las leguminosas son capaces de crecer en suelos áridos, de escasa fertilidad, lo que se debe
Martha-Helena Ramírez-Bahena   +2 more
exaly   +3 more sources

Simbiosis y parasitismo

open access: yesArbor, 1997
Por mucho tiempo la teoría clásica de la evolución ha estado ajena a dos fenómenos recurrentes en la evolución biológica: la simbiosis y el parasitismo, fenómenos que han servido para formular teorías sobre la generación de novedades evolutivas importantes, aunque con distinto vigor.
Andrés Moya
exaly   +5 more sources

Video Presentations [PDF]

open access: yesHPB Surg, 1996
HPB Surgery, Volume 9, Issue S2, Page 189-214, 1996.
europepmc   +2 more sources

Regional Intellectual Wealth and Sustainable Development in Colombia

open access: yesTecnura, 2021
CONTEXT: There is a growing concern with the economic consumption and unlimited accumulation model because improvement in some parameters implies that others are negatively affected. There is a need for more intellectual wealth, not only oriented towards
Paula Garcia-Benitez   +2 more
doaj   +1 more source

plantacionoceno en el «desierto» argentino. Las aventuras de la China Iron como narrativa indisciplinada para la alteración de mundos

open access: yesAisthesis, 2022
De acuerdo con la formulación de Haraway y Tsing, el Plantacionoceno sería un modo de nombrar esta época que permitiría, con mayor especificidad que el Antropoceno, señalar las características del sistema mundial moderno.
Noelia Billi
doaj   +1 more source

Intuición colectiva y estadísticas alternativas para acertar

open access: yesTecnura, 2020
Contexto: El mundo varía rápidamente en el Antropoceno por sistemas socioecológicos sensibles y retroalimentadores. América Latina evidencia distancias grandes entre estadísticas y realidades.
Carlos Hildebrando Fonseca Zárate   +2 more
doaj   +1 more source

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