Leaf surface of two understorey shrubs Rudgea Decipiens Müll. Arg. and Rudgea macrophylla Benth. (Rubiaceae)

Mantovani, André; Vieira, Ricardo Cardoso

doi:10.1590/2175-7860199319974549717501

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…In Manihot glaziovii, authors reported the occurrence of rectangular cells with the external periclinal walls often pointed, similar to the papillae observed in the present study (Mendonça, 1992). The papillae present in the epidermis favor the absorption of light by plants growing under the canopy of tropical forests (Bone et al, 1985;Mantovani and Vieira, 1997).…”

Section: Resultssupporting

confidence: 87%

Stomatal density and distribution in different cassava genotypes

Oliveira¹,

Miglioranza²,

Meschede³

et al. 2015

Afr. J. Agric. Res.

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This study aimed to establish the anatomical characteristics, and to determine the density, size and distribution of stomata in the abaxial surface of leaves of different cassava genotypes. The apical, middle and basal portions of fully expanded leaves of genotypes Baianinha, Caapora, Fécula Branca, IAC 12, IAC 13, IAC 14, IAC 15, IAC 576, IAC 90 and IAPAR União were analyzed. The design was completely randomized with a 3 by 3 factorial arrangement and three replications, and the data were analyzed by Anova and Scott-Knott test. The parameters evaluated concerned the number, polar and equatorial diameters of stomata and calculations of density and stomatal functionality. Significant interaction was found among the different genotypes and the distribution and size of stomata in the different parts of the leave, being more frequent in leaf apices. The genotypes Baianinha, Caapora, IAC 576 and IAPAR União characterized the group with the highest stomatal density, while the genotype IAC 90 showed the lowest density and the largest polar diameter, regardless of the location of the stomata. In the analyzed leaves, the lowest polar diameter was detected in the genotypes Baianinha, Caapora, IAC 14 and IAPAR União, while the largest equatorial diameter was found in IAPAR União. In all genotypes, functionality was inversely proportional to stomatal density, with a negative correlation between stomatal density and the polar diameter of stomata.

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Section: Resultssupporting

confidence: 87%

Stomatal density and distribution in different cassava genotypes

Oliveira¹,

Miglioranza²,

Meschede³

et al. 2015

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

Structural and histochemical foliar traits assessing taxonomy of Rubiaceae species occurring in the Brazilian Atlantic Forest

Moraes

Lima

Alexandrino³

et al. 2020

Flora

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Anatomia foliar de Rubiaceae ocorrentes em fragmento florestal urbano de Mata Atlântica, PR, Brasil

Zini

Martins

Toderke

et al. 2016

Hoehnea

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-(Foliar anatomy of Rubiaceae occurring in an urban forest fragment of Atlantic Forest, Paraná State, Brazil). Rubiaceae in Brazil occurs mainly in the Atlantic Forest biome that in the southern region is represented by two main vegetation types: Seasonal Semi-deciduous Forestand Araucaria Forest. Both occur in the Ecological Park Paul Gorski (PEPG), an urban forest fragment. Given the relevance of Rubiaceae in the Atlantic Forest and the importance of ecological anatomy studies to understand colonization and survival processes, this study aimed to anatomically characterize leaves of Rubiaceae found in the PEPG. We studied 14 species belonging to nine genera of Rubiaceae that present unistratified epidermis, trichomes, paracytic and paralelocytic stomata, dorsiventral mesophyll, and collateral vascular bundles as common characters to the family. Among the anatomical characters observed, considered common in mesophytes-heliophytes plants, stand papillae, trichomes, and compact mesophyll out. Therefore, these features are in accordance with the environmental conditions recorded in the area of edges and clearings of the Atlantic Forest and in disturbed areas. Keywords: Araucaria Forest, Atlantic Forest, ecological aspects, semi-deciduous forest RESUMO -(Anatomia foliar de Rubiaceae ocorrentes em fragmento de floresta urbana da Mata Atlântica, PR, Brasil). Rubiaceae no Brasil ocorre principalmente no Bioma Mata Atlântica que na região sul é representado por dois tipos principais de fitofisionomias: Floresta Estacional Semidecidual e Floresta Ombrófita Mista. Ambas ocorrem no Parque Ecológico Paulo Gorski (PEPG), fragmento florestal urbano. Diante da relevância de Rubiaceae na Mata Atlântica e da importância de estudos de anatomia ecológica para entender processos de colonização e sobrevivência este estudo teve como objetivo caracterizar anatomicamente as folhas de Rubiaceae encontradas no PEPG. Foram estudadas 14 espécies pertencentes a nove gêneros de Rubiaceae que apresentam como caracteres comuns à família: epiderme uniestratificada, tricomas, estômatos paracíticos e paralelocíticos, mesofilo dorsiventral e feixes vasculares colaterais. Dentre os caracteres anatômicos observados, considerados comuns em plantas mesófitas-heliófitas, destacam-se papilas, tricomas e mesofilo compacto. Portanto, essas características estão de acordo com as condições ambientais constatadas nas áreas de bordas e clareiras da Mata Atlântica e também em áreas antropizadas.

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Leaf surface of two understorey shrubs Rudgea Decipiens Müll. Arg. and Rudgea macrophylla Benth. (Rubiaceae)

Cited by 5 publications

References 13 publications

Stomatal density and distribution in different cassava genotypes

Stomatal density and distribution in different cassava genotypes

Structural and histochemical foliar traits assessing taxonomy of Rubiaceae species occurring in the Brazilian Atlantic Forest

Anatomia foliar de Rubiaceae ocorrentes em fragmento florestal urbano de Mata Atlântica, PR, Brasil

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