Efeito do sombreamento na anatomia foliar de plantas jovens de andiroba (Carapa guianensis Aubl.)

Aragão, Dayse de Souza; Lunz, Aureny Maria Pereira; Oliveira, Luís Cláudio de; Raposo, A.; Fermino, Paulo César Poeta

doi:10.1590/s0100-67622014000400006

Cited by 12 publications

(13 citation statements)

References 37 publications

(44 reference statements)

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“…In pepper plants, these authors found that a high amount of blue light triggers specific biochemical and physiological processes, resulting in better acclimation and recovery of plants from stress produced by UV radiation. Among cultivated species, the ability to use light for biological production is variable, and morphoanatomical responses are responsible for the success of each species (Aragão et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Plant biometric characterization and leaf micromorphometry of Talinum triangulare (Jacq.) Willd cultivated under shade

et al. 2018

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Talinum triangulare (Jacq.) Willd, known as Ceylon spinach, Surinam purslane, or waterleaf, is cultivated for medicinal and food purposes. Among environmental factors, light is an important regulator of primary production, contributing to plant growth. However, the success of each plant species depends on its morphoanatomical responses to light. The aim of this study was to determine whether T. triangulare leaf micromorphometry is affected when grown in full sun and under shade, and if so, which plant biometric variables are affected. T. triangulare cultivation was tested in beds arranged in blocks under shade levels of 0, 18, 30, and 50%. Each bed was considered a basic experimental unit, totaling four replications per treatment. Plant height, stem diameter, leaf area, leaf fresh weight, stem fresh weight, specific leaf area, leaf area ratio, abaxial epidermis, and mesophyll thickness were higher as shade levels increased. However, there was a decrease in the number of leaves, root to shoot ratio, stomatal density on abaxial and adaxial surfaces, and palisade parenchyma thickness. Nevertheless, root length, leaf and stem dry weights, leaf weight ratio, adaxial stomatal index, adaxial epidermis, and spongy parenchyma thickness remained constant. Plants responded differently to shade, with morphological and anatomical changes, suggesting a phenotypic plasticity and raising the possibility of being grown both in shaded environments and in full sunlight.

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Section: Introductionmentioning

confidence: 99%

Plant biometric characterization and leaf micromorphometry of Talinum triangulare (Jacq.) Willd cultivated under shade

et al. 2018

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“…Dentre os fatores abióticos, a luz é essencial para realização dos processos fotoquímicos e bioquímicos da fotossíntese LIMA, 2015;MARTHUR et al, 2018), mas a intensidade da radiação é alterada pela passagem da luz através da folhagem, pela refletância da superfície e pelos efeitos de aberturas no dossel (ARAGÃO et al, 2014). Isso, porque a radiação solar total não é aproveitada 100% pelas plantas (TAIZ et al, 2017), uma vez que, uma fração é absorvida, outra parte será transmitida ou refletida pela folha (dependendo da espessura e presença de cutícula), e uma pequena parte emitida na forma de calor (LOPES; LIMA, 2015) (Figura 1).…”

Section: Introductionunclassified

Interações Ecológicas: Entre Teoria E Pratica a Aprendizagem Em Uma Horta Escolar

Santos¹,

Santana²,

Melo³

et al. 2020

Conservação Da Biodiversidade E Desenvolvimento Socioambiental

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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“…Morphologically, one of the features presented by the leaves exposed to the Sun is the adequacy in relation to their surface and their volume, i.e., they present less leaf area with greater thickness. This way, they are smaller and heavier per unit of area in relation to the ones cultivated in the shade (ARAGÃO et al, 2014;BÜNDCHEN et al, 2015).…”

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confidence: 99%

“…The foliar morphoanatomic study is of great importance to know the species characteristics, since it is closely related to the plant biomass increase, as well as to the adaptability and available abiotic resources use (PIRES et al, 2015;ARAGÃO et al, 2014;JAMES;BELL, 2001). According to Trevisan et al (2013), the study of the interaction of the leaves with wood quality and its respective volume must be cautious as the biotic and abiotic factors can influence cambial activity and, consequently, increase wood heterogeneity.…”

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confidence: 99%

Growth, Development and Foliary Ultrastructural Parameters of Different Eucalyptus Genetic Materials

Lisboa

Lapaz²,

Spósito³

et al. 2018

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Currently eucalyptus is used as raw material in different industrial segments. The aim of this study was to evaluate the growth, development and ultrastructural parameters in different eucalyptus genetic materials. The randomized block experiment was carried out in ten treatments and five replicates, with different genetic materials: six hybrids:I-144; H-13; 110; NA-151; NA-189 (Eucalyptus urophilla S. T. Blake x Eucalyptus grandis W. Hill); Grancam 1277 (Eucalyptus grandis W. Hill x Eucalyptus camaldulensis Dehnh.); and four pure genetic materials:0020 (Eucalyptus saligna Sm.); 0010 (Eucalyptus resinífera Sm.); Eucalyptus pellita F. Muell. and Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson.Approximately four years after planting, the following variables were determined: plant height (AP), diameter at breast height (DAP), spad index (ISPAD), adaxial cuticle thickness (ECAD), abaxial cuticle thickness (ADX), abaxial epidermal thickness (EEAB), xylem diameter (DX), phloem diameter (DF) and palisade parenchyma length (CPP).The materials NA - 151 (Eucalyptus urophilla x E. grandis) and Grancam 1277 (E. grandis x E. camaldulensis) presented higher plant height (AP). The materials 0020 (E. saligna); 0010 (E. resinífera) and Corymbia torelliana presented smaller diameter at breast height (DAP). In general, the Corymbia torelliana genetic material had the lowest values in the ultrastructural foliar parameters

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Efeito do sombreamento na anatomia foliar de plantas jovens de andiroba (Carapa guianensis Aubl.)

Cited by 12 publications

References 37 publications

Plant biometric characterization and leaf micromorphometry of Talinum triangulare (Jacq.) Willd cultivated under shade

Plant biometric characterization and leaf micromorphometry of Talinum triangulare (Jacq.) Willd cultivated under shade

Interações Ecológicas: Entre Teoria E Pratica a Aprendizagem Em Uma Horta Escolar

Growth, Development and Foliary Ultrastructural Parameters of Different Eucalyptus Genetic Materials

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