In thermotolerance tests of tropical tree leaves, the chlorophyll fluorescence parameter Fv/Fm measured soon after heat exposure is not a reliable predictor of tissue necrosis. [PDF]
Heat tolerance assays based solely on the decline of photosystem II quantum efficiency (Fv/Fm) soon after heat exposure may underestimate the temperature above which irreversible leaf damage occurs and may be species specific. Abstract Tropical rainforests are hot and may be particularly sensitive to ongoing anthropogenic global warming.
Winter K+3 more
europepmc +2 more sources
Flora do Espírito Santo: Subtribo Terminaliinae (Combretaceae) [PDF]
Resumo Este estudo teve como objetivo realizar o levantamento florístico da subtribo Terminaliinae no estado do Espírito Santo. Baseou-se na análise comparativa dos caracteres morfológicos de espécimes depositados nos herbários BHCB, BM, CEPEC, CESJ ...
Rayane de Tasso Moreira Ribeiro+2 more
doaj +3 more sources
Árboles, arbustos erguidos o apoyantes, hasta lianas o geófitos rizomatosos. Madera de porosidad difusa, a menudo fibras septadas con cristales de oxalato de calcio. Ramificaciones simpódicas, corteza escamosa.
Guaglianone, Encarnacion Rosa+1 more
core +2 more sources
Terminalia L. (Combretaceae) do Estado de Pernambuco, Brasil [PDF]
RESUMO Este trabalho consiste no levantamento taxonômico de Terminalia para o Estado de Pernambuco. Baseou-se na análise morfológica de espécimes depositados em herbários nacionais, bibliografia especializada e imagens de coleções-tipo.
Rayane de Tasso Moreira Ribeiro+2 more
doaj +4 more sources
Biodiversity of the Indian Desert and it´s value [PDF]
The state of Rajasthan is situated between 23º3 and 30º12 N latitude and 69º30 and 78º17 E longitude . The total land area of the state is about 3,24,239 km²out of which about 1,98,100 km² is arid and the rest semi arid.
Kotia, Amit, Kumar, Ashwani
core +2 more sources
The modern pollen-vegetation relationship of a tropical forest-savannah mosaic landscape, Ghana, West Africa [PDF]
Transitions between forest and savannah vegetation types in fossil pollen records are often poorly understood due to over-production by taxa such as Poaceae and a lack of modern pollen-vegetation studies.
Adele C.M. Julier+29 more
core +6 more sources
Antibacterial, Anti-HIV-1 Protease and Cytotoxic Activities of Aqueous Ethanolic Extracts from Combretum Adenogonium Steud. Ex A. Rich (Combretaceae). [PDF]
\ud \ud Records have shown that Combretum adenogonium Steud. Ex A. Rich (Combretaceae) is used in traditional medicine systems of several tribes in Tanzania. This study focused on the investigation of antibacterial activity, anti-HIV-1 protease activity,
A Sartoratto+34 more
core +3 more sources
Tree Species Composition and Forest Stratification along the Gradients in the Dry Deciduous Forests of Godavari Valley, Telangana, India [PDF]
It is important to understand the tree species composition, abundance, species diversity and stratification in tropical dry deciduous forests that are under threat. A quadrat study was attempted in the dry deciduous forests along the ecological
Raju, Vatsavaya S, Suthari, Sateesh
core +2 more sources
Context: Guiera senegalensis J.F. Gmel (Combretaceae) is a folk medicinal plant used in various metabolic and infectious diseases. In addition to its antiviral activities against herpes and fowlpox, the anti-HBV efficacy is very recently reported ...
Perwez Alam+3 more
doaj +1 more source
Peaceful giant ground beetles: The genus Tefflus Latreille (Coleoptera: Carabidae) in the Republic of South Africa [PDF]
Two species of the genus Tefflus Latreille (Coleoptera: Carabidae), commonly known as “peaceful giant ground beetles,” are recorded from the Republic of South Africa: T. carinatus carinatus Klug and T. meyerlei delagorguei Guérin-Méneville.
Mawdsley, Alice S.+2 more
core +1 more source