Results 61 to 70 of about 6,807 (235)

Novos registros de Hyphomycetes decompositores para o Estado da Bahia, Brasil New records of Hyphomycetes from Bahia State, Brazil

open access: yesActa Botânica Brasílica, 2009
Folhas mortas de Clusia melchiorii Gleason e C. nemorosa G. Mey. foram coletadas bimestralmente na Serra da Jibóia, Bahia, no período de outubro/2005 a junho/2006. As folhas foram lavadas em água corrente e mantidas em câmara-úmida durante 30 dias.
Flávia Rodrigues Barbosa   +2 more
doaj   +1 more source

Tracking climate vulnerability across spatial distribution and functional traits in Magnolia gentryi in the Peruvian tropical montane cloud forest

open access: yesAmerican Journal of Botany, Volume 111, Issue 9, September 2024.
Abstract Premise Understanding the responses of functional traits in tree species to climate variability is essential for predicting the future of tropical montane cloud forest (TMCF) tree species, especially in Andean montane environments where fog pockets act as moisture traps.
Ernesto C. Rodríguez‐Ramírez   +3 more
wiley   +1 more source

INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]

open access: yes, 2016
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core   +1 more source

Report of new invasive scale insects (Hemiptera: Coccoidea), Crypticerya multicicatrices Kondo and Unruh (Monophlebidae) and Maconellicoccus hirsutus (Green) (Pseudococcidae), on the islands of San Andres and Providencia, Colombia, with an updated taxonomic key to iceryine scale insects of South America [PDF]

open access: yes, 2012
The multicicatrices fluted scale, Crypticerya multicicatrices Kondo and Unruh (Hemiptera: Coccoidea: Monophlebidae) is reported from the islands of San Andres and Providencia, Colombia, as a recent invasive species.
Gullan, Penny   +2 more
core   +2 more sources

Bird perches and artificial bat roosts increase seed rain and seedling establishment in tropical bracken‐dominated deforested areas

open access: yesRestoration Ecology, Volume 32, Issue 7, September 2024.
Tropical forests are being reduced by human activities. The use of fire for agricultural expansion generates areas dominated by the bracken fern Pteridium, where forest regeneration is slow. This may be caused by seed limitation, especially of animal‐dispersed seeds, due to the absence of seed dispersers from the forest in deforested areas, calling for
Cesar Mayta   +5 more
wiley   +1 more source

Acción vaso-periférica del extracto acuoso de las hojas de Clusia coclensis (Clusiaceae)

open access: yesRevista de Biología Tropical, 1998
Se inyectó extracto acuoso de hojas de Clusia coclensis en dosis de 40 mg/kg por vía endovenosa en el tren posterior aislado de 6 ratas normotensas (SDN) y 6 ratas hipertensas (SHR). El extracto provocó en ambas cepas de ratas una reducción significativa
Mildred García-González
doaj  

Propolis as a functional food and promising agent for oral health and microbiota balance: A review study

open access: yesFood Science &Nutrition, Volume 12, Issue 8, Page 5329-5340, August 2024.
Propolis is a natural substance made by bees that has many health benefits, especially for oral diseases. This study reviewed 22 articles that showed how propolis can prevent and treat dental caries, periodontal diseases, and other oral problems by balancing the oral microbiota, fighting bacteria, and reducing inflammation.
Arghavan Etebarian   +3 more
wiley   +1 more source

Early detection of injuries in leaves of Clusia hilariana Schltdl. (Clusiaceae) caused by particulate deposition of iron

open access: yesRevista Árvore, 2014
This study aims to evaluate the prognostic value of microscopic parameters of asymptomatic leaves of Clusia hilariana Schltdl. subjected to particulate deposition of iron (2.14 mg cm-2 day-1) for 45 consecutive days.
Diego Ismael Rocha   +5 more
doaj   +1 more source

Are tropical forests approaching critical temperature thresholds?

open access: yesPlant Biology, Volume 26, Issue 4, Page 495-498, June 2024.
Tropical tree leaves have greater heat tolerance than previously assumed by some scientists. ABSTRACT There is growing concern about the fate of tropical forests in the face of rising global temperatures. Doughty et al. (2023) suggest that an increase in air temperature beyond ∼4 °C will result in massive death of tropical forest leaves and potentially
K. Winter
wiley   +1 more source

Fukugetina y fukogisida, biflavonoides de clusia guaviarensis cuatr. (clusiaceae)

open access: yesRevista Colombiana de Química, 2010
De los frutos de la especie nativa Clusia guaviarensis (Cuatr.) se aislaron e identificaron los bifiavonoides fukugetina i y fukugisida 2. Este es el primer estudio fitoquímico de esta especie así como el primer reporte de bifiavonoides en el género ...
Eduardo Martínez O.   +2 more
doaj  

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