Photosynthetic Plasticity
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Morphophysiological adjustments to shade of jaboticaba tree saplings
ABSTRACT We aimed to verify the morphophysiological changes in jaboticaba tree (Plinia peruviana (Poir.) Govaerts) saplings under shade gradient to improve knowledge on the appropriate light environmental conditions for the saplings production and field homogeneous or intercropping cultivation of this species. The saplings were grown under full sun and artif
Revista Ceres. Publicado em: 2022
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2. WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH
ABSTRACT The use of water-retaining polymer (hydrogel) can mitigate the damage to the photosynthetic apparatus and increase the robustness of young plants under water deficit conditions. Thus, the aim of this study was to evaluate the effect of water-retaining polymer on the morphophysiological aspects of Schinus terebinthifolia Raddi submitted to water defi
Eng. Agríc.. Publicado em: 2020-12
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3. Adaptive morphoanatomy and ecophysiology of Billbergia euphemiae, a hemiepiphyte Bromeliaceae
Resumo Habitats com pressões seletivas diferentes exercem pressões adaptativas que podem levar indivíduos de uma mesma espécie a apresentar diferentes estratégias de vida para sua sobrevivência. O objetivo desse estudo foi analisar características funcionais para identificação de estratégias ecológicas adaptativas relacionadas às fases de vida te
Rodriguésia. Publicado em: 20/12/2019
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4. MORPHOLOGICAL AND PHYSIOLOGICAL PLASTICITY OF SAPLINGS OF Cabralea canjerana (Vell.) MART. IN DIFFERENT LIGHT CONDITIONS
RESUMO Este trabalho foi realizado com o objetivo de verificar a plasticidade dos folíolos de plantas jovens de Cabralea canjerana e sua capacidade de adaptação a diferentes ambientes luminosos por meio de características morfológicas e fisiológicas. Para isto, foram selecionadas 12 plantas de fragmento de Floresta Estacional Decidual secundário, send
Rev. Árvore. Publicado em: 20/05/2019
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5. Plasticidade e aclimatação foliar à irradiância em espécies da Floresta Atlântica / Plasticity and leaf acclimation to light irradiance in Atlantic Forest species
A Floresta Atlântica está entre os cinco ecossistemas terrestres mais ameaçados do mundo e que apresentam maior porcentagem de diversidade e endemismo. Portanto, existe uma prioridade para a conservação e o desenvolvimento de metodologias de recuperação das regiões degradadas deste ecossistema. No entanto, o sucesso de muitos programas de recuperaç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/10/2010
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6. Photosynthetic plasticity and acclimation in tropical tree species / Plasticidade e aclimatação fotossintética de espécies arbóreas tropicais
Com objetivo de estudar a correlação entre o grau de plasticidade/aclimatação fotossintética e o estádio sucessional de espécies arbóreas tropicais, avaliaram-se (i) as alterações fisiológicas e anatômicas em plantas jovens de oito espécies arbóreas cultivadas sob condições naturais de sub-bosque e de clareira e (ii) os efeitos do incremento
Publicado em: 2006
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7. Análise morfológica e molecular de cianobactérias isoladas de efluentes de uma mina de urânio desativada com ênfase em Aphanothece e sua capacidade de biossorção do 226Ra / Morphological and molecular analysis of cyanobacteria isolated from a deactivated uranium mine effuents with emphasis in Aphanothece and its 226Ra biosorption capacity
Cyanobacteria are oxygenic photosynthetic microorganisms with wide metabolic and structural plasticity, which have biotechnological potential for exploration in metals biosorption and organic pollutants biodegradation. Due to its strong interactions with cations and a reliable supply of cheap biomass, cyanobacteria may be a promising biosorbent candidate for
Publicado em: 2006
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8. Plasticidade fenotípica em indivíduos jovens de Aloysia virgata (Ruiz et Pav.).
Phenotypic plasticity in a tree species Aloysia virgata was investigated on seedlings growing under two different natural irradiance conditions: under full solar irradiance (FS) and in shade under tree forest canopy (UC). Seedlings with 180 days old cultivated under FS showed significant (p<0.001, n=12) larger average values of biometrics (height, diameter o
Publicado em: 2003
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9. Germinação, crescimento, atividade fotossintetica e translocação de compostos de carbono em especies arboreas tropicais : estudo comparativo e influencia de sombreamento natural
Gennination, growth, photosynthesis and translocation of carbon in tropical tree species: a comparative study and the influence of natural shade. Light has been recognized as a major factor in species replacement during secondary sucession in forests. The degree of shade tolerance may be important in detennining successional sequences, since these are condit
Publicado em: 1996
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10. Regulation of Photosynthesis during Leaf Development in RbcS Antisense DNA Mutants of Tobacco.
We have previously characterized RbcS antisense DNA mutants of tobacco that have drastic reductions in their content of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco; S.R. Rodermel, M.S. Abbott, L. Bogorad [1988] Cell 55: 673-681). In this report we examine the impact of Rubisco loss on photosynthesis during tobacco (Nicotiana tabacum) leaf develo
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11. High Photosynthetic Capacity in a Shade-Tolerant Crassulacean Acid Metabolism Plant (Implications for Sunfleck Use, Nonphotochemical Energy Dissipation, and Susceptibility to Photoinhibition).
Aechmea magdalenae Andre ex Baker, a constitutive Crassulacean acid metabolism (CAM) plant from the shaded Panamanian rain forest understory, has a maximum photosynthesis rate 2 to 3 times that of co-occurring C3 species and a limited potential for photosynthetic acclimation to high light. Chlorophyll fluorescence measurements indicated that (a) compared wit
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12. Photosynthetic Plasticity in Flaveria brownii: Growth Irradiance and the Expression of C4 Photosynthesis 1
Photosynthesis was examined in leaves of Flaveria brownii A. M. Powell, grown under either 14% or 100% full sunlight. In leaves of high light grown plants, the CO2 compensation point and the inhibition of photosynthesis by 21% O2 were significantly lower, while activities of ribulose 1,5-bisphosphate carboxylase/oxygenase and various C4 cycle enzymes were co