Epidermal structure, organographic distribution and ontogeny of stomata in vegetative and floral organs of Stenoglottis fimbriata (Orchidaceae)

Samuel, J.; Bhat, Rohini

doi:10.1016/s0254-6299(16)30641-x

Cited by 4 publications

(6 citation statements)

References 13 publications

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“…(Das & Paria, 1992) and H. goodyeroides D. Don (Singh,198 1). Stomata1 apparatuses are basically anomocytic (Indamar, 1968;Williams, 1979;Singh, 1981;Kaushik, 1983;Das & Paria, 1992;and Samuel & Bhat, 1994). Williams (1979) noted that Habenuria lacks subsidiary cells, confirming the finding of Indamar (1968) who showed in H. marginatu Colebr.…”

Section: Introductionmentioning

confidence: 57%

“…Leaves in Habenariinae are predominantly hypostomatic (Indamar, 1968;Williams, 1979;Singh, 1981;Kaushik, 1983;and Samuel & Bhat, 1994), although amphistomatic leaves are known for Habenuria dz@tuta Lindl. (Das & Paria, 1992) and H. goodyeroides D. Don (Singh,198 1).…”

Section: Introductionmentioning

confidence: 99%

“…Adaxial epidermal cells in Stenoglottisjimbriata Lindl. are characterized by dome-shaped water vesicles (Samuel & Bhat, 1994). Kaushik (1983) described an undifferentiated mesophyll for H. pectimta (Smith) D. Don, H m i n i u m gamineurn Lindl., and H. lanceum (Thunb.…”

Section: Introductionmentioning

confidence: 99%

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Vegetative anatomy of subtribe Habenariinae (Orchidaceae)

Stern

1997

Botanical Journal of the Linnean Society

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Leaves of Habenariinae are characterized by anomocytic stomatal apparatuses, homogeneous mesophyll, collateral vascular bundles in a single series, and thin‐walled bundle sheath cells. There is no foliar sclerenchyma nor a hypodermis. Cauline cortex consists of thin‐walled living cells among which are large and numerous intercellular spaces. The ground tissue is bordered externally by a layer of thick‐walled living cells, except in Habenaria repens. Central ground tissue cells are living, and usually thin‐walled surrounding intercellular spaces of various dimensions. These are conspicuously large in H. repens. Collateral vascular bundles are scattered across the ground tissue. Sclerenchyma is absent. Absorbing roots are generally velamentous, exodermal dead cells are diin‐walled, and passage cells usually have a thickened outer wall. A regular vascular cylinder is present, and vascular tissue is embedded in parenchyma. Root tubers are velamentous, exodermal cells are usually thin‐walled, and passage cells frequently have thickened outer walls. Vascular tissue of root tubers is organized into two classes: (1) those with a single vascular cylinder surrounded by a cortex and (2) those with a series of meristeles dispersed throughout the ground tissue. In group (1) cortex is homogeneous either with or without mucilage cells except in Stenoglattis where the cortex is heterogeneous, consisting of water‐storage and assimilatory cells, and lacks mucilage cells. In group (2) the ground tissue consists of larger mucilage‐containing cells and smaller assimilatory cells.

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Section: Introductionmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 99%

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Vegetative anatomy of subtribe Habenariinae (Orchidaceae)

Stern

1997

Botanical Journal of the Linnean Society

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“…Bar = 100 µm (8, 11), 5 µm (9-10, 12-13). Morretes & Menezes (1969) and Samuel & Bhat (1994)). The subsidiary cells (1 3 ) are originated through oblique divisions of the adjacent cells type 1.…”

Section: Resultsmentioning

confidence: 98%

“…Samuel & Bhat (1994) found that the number of surrounding cells is equal to the number of faces of the GMCs in Orchidaceae. In Velloziaceae, all the GMCs of the four species studied are surrounded by four cells.…”

Section: Resultsmentioning

confidence: 99%

Ontogenesis of stomata in Velloziaceae: paracytic versus tetracytic?

Amaral

Mello‐Silva

2008

Rev. bras. Bot.

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-(Ontogenesis of stomata in Velloziaceae: paracytic versus tetracytic?). In Velloziaceae, the number of subsidiary cells has been used to characterize species and support groups. Nevertheless, the homology of the stomatal types have not been scrutinized. Stomatal ontogenesis of Vellozia epidendroides and V. plicata, assigned to have tetracytic stomata, and of V. glauca and Barbacenia riparia, assigned to have paracytic stomata, were investigated. In the four species studied, stomata followed perigenic development. Subsidiary cells arise from oblique divisions of neighbouring cells of the guard mother cell (GMC). These cells are elongated and parallel to the longer axis of the stoma. Polar cells show wide variation, following the shape and size of the epidermal cells in the vicinity. Hence, these cells cannot be called subsidiary cells. This wide variation is due to a much higher density of stomata in some regions of the leaf blade. This distribution of stomata forces the development of short polar cells, leading to an apparently tetracytic stomata. In regions of low concentration of stomata, higher spatial availability between the GMCs allows the elongation of polar cells, leading to evident paracytic stomata. Therefore, the four studied species are considered braquiparacytic, questioning the classification of stomata into tetracytic and paracytic in Velloziaceae.Key words -ontogenesis, paracytic, stomata, tetracytic, Velloziaceae RESUMO -(A ontogênese dos estômatos em Velloziaceae: paracítico versus tetracítico?). Em Velloziaceae, o número de células subsidiárias tem sido utilizado para caracterizar espécies e sustentar grupos. Entretanto, a homologia dos tipos de estômatos nunca foi escrutinizada. Para isso, a ontogênese dos estômatos de Barbacenia riparia e Vellozia glauca, representando estômatos paracíticos, e V. epidendroides e V. plicata, representando estômatos tetracíticos, foi investigada. Nas quatro espécies, foi evidenciada ontogênese perígina. As células subsidiárias se originam a partir de divisões oblíquas das células vizinhas da célula-mãe de células-guarda (GMC), que são alongadas paralelamente em relação ao maior eixo do estômato. Células polares apresentam grande diversificação, acompanhando o padrão de tamanho e formato das outras células epidérmicas, e assim não podem ser denominadas células subsidiárias. Essa ampla variação se deve a uma maior densidade de estômatos em algumas regiões da superfície foliar, forçando o desenvolvimento de células polares curtas e conduzindo a estômatos aparentemente tetracíticos. Em regiões de baixa concentração de estômatos, a maior disponibilidade espacial entre GMCs permite o alongamento de células polares, conduzindo a estômatos evidentemente paracíticos. Os estômatos das quatro espécies são então classificados como braquiparacíticos. A classificação de estômatos em tetracítico e paracítico em Velloziaceae deve ser questionada.

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Comparative anatomy of selected rhizomatous and tuberous taxa of subfamilies Orchidoideae and Epidendroideae (Orchidaceae) as an aid to identification

Aybeke

2012

Plant Syst Evol

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Epidermal structure, organographic distribution and ontogeny of stomata in vegetative and floral organs of Stenoglottis fimbriata (Orchidaceae)

Cited by 4 publications

References 13 publications

Vegetative anatomy of subtribe Habenariinae (Orchidaceae)

Vegetative anatomy of subtribe Habenariinae (Orchidaceae)

Ontogenesis of stomata in Velloziaceae: paracytic versus tetracytic?

Comparative anatomy of selected rhizomatous and tuberous taxa of subfamilies Orchidoideae and Epidendroideae (Orchidaceae) as an aid to identification

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