Results 41 to 50 of about 248,873 (310)

Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions

open access: yesPhotosynthetica, 2019
The physiological alterations as well as the growth were evaluated in seedlings of two liana species, Cuspidaria sceptrum and Fridericia florida, which were transferred from shade to full sunlight conditions.
S.M. PAULA   +2 more
doaj   +1 more source

Sun leaves up-regulate the photorespiratory pathway to maintain a high rate of CO2 assimilation in tobacco

open access: yesFrontiers in Plant Science, 2014
The greater rate of CO2 assimilation in sun-grown tobacco leaves leads to lower intercellular and chloroplast CO2 concentrations and, thus, a higher rate of oxygenation of ribulose-1,5-bisphosphate (RuBP) than in shade-grown leaves.
Wei eHuang, Shi-Bao eZhang, Hong eHu
doaj   +1 more source

Does Long-Term Elevation of CO2 Concentration Increase Photosynthesis in Forest Floor Vegetation? (Indiana Strawberry in a Maryland Forest). [PDF]

open access: yes, 1997
As the partial pressure of CO2 (pCO2) in the atmosphere rises, photorespiratory loss of carbon in C3 photosynthesis will diminish and the net efficiency of light-limited photosynthetic carbon uptake should rise.
Drake, B.G.   +3 more
core   +3 more sources

Shade and leaf retention: an aspect of effective Coffee Leaf Rust management [PDF]

open access: yes, 2019
Coffee Leaf Rust (CLR) has been reported in over 50 coffee growing countries causing significant economic losses in Arabica coffee. The aim of this study was to determine the effect of shade on leaf life span in relation to severity of coffee leaf rust ...
Alwora, G.   +4 more
core  

Transpiration of Sun Leaves and Shade Leaves of Olea Europaea and Other Broad-Leaved Evergreens [PDF]

open access: yesBotanical Gazette, 1904
(WITH ELEVEN FIGURES) THE structural differences between sun leaves and shade leaves of several species have been described in a classical memoir by E. STAHL.' FR. JoHow has given an excellent summary of the adaptations of foliage leaves with reference to transpiration.2 LEON DUFOUR has investigated many of the differences in the vegetative and the ...
openaire   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Evaluation of Drying Methods and Leaf Age on the Nutrient Composition of Orange-fleshed Sweetpotato (Ipomoea batatas L.) Leaves

open access: yesHortScience
Sweetpotato leaves are considered highly nutritious, serving as an excellent source of minerals, vitamins, and other functional phytochemicals. Their tender, tasteful tips make them a versatile vegetable, suitable for daily consumption either fresh or ...
Lungisa Banathi Joko   +2 more
doaj   +1 more source

The moss Bryum argenteum var. muticum Brid. is well adapted to cope with high light in continental Antarctica [PDF]

open access: yes, 2012
The net photosynthetic rate (NP), chlorophyll fluorescence, carotenoid content and chlorophyll content of the cosmopolitan moss Bryum argenteum were measured in the field at Botany Bay, southern Victoria Land, continental Antarctica (77°S).
Green, T.G. Allan   +5 more
core   +3 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Arquitetura foliar de Odontonema strictum (Nees) O. Kuntze (Acanthaceae) em duas condições de luminosidade

open access: yesHoehnea
Os atributos morfológicos que influenciam a arquitetura foliar de Odontenema strictum foram investigados em duas condições de luminosidade. Ramos de 15 indivíduos de sol e sombra foram coletados no Centro Politécnico da Universidade Federal do Paraná ...
Letícia Larcher   +1 more
doaj   +1 more source

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