Micromorphology and anatomy of the leaf blade: a contribution to the taxonomy of Luziola (Poaceae, Oryzoideae) from the Pantanal, Brazil

Leandro, Thales D.; Scremin-Dias, Edna; Arruda, Rosani do Carmo de Oliveira

doi:10.1007/s00606-015-1260-8

Cited by 11 publications

(11 citation statements)

References 31 publications

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“…For this reason, searching for vegetative characters in addition to the reproductive ones is highly important to aid in species identification, and anatomical features often have provided useful findings (e.g. Brandis, 1907;Prat, 1936;Brown, 1958;Metcalfe, 1960;Calderón and Soderstrom, 1973;Renvoize, 1987;Vieira et al, 2002;Guglieri et al, 2008;Oliveira et al, 2008;Pelegrin et al, 2009;Jesus Junior et al, 2012;Viana et al, 2013a, b;Leandro et al, 2016;Aliscioni et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The utility of Bambusoideae (Poaceae, Poales) leaf blade anatomy for identification and systematics

et al. 2016

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Bambusoideae is a diverse subfamily that includes herbaceous (Olyreae) and woody (Arundinarieae and Bambuseae) bamboos. Species within Bambusae are particularly difficult to identify due to their monocarpic lifecycle and the often long durations between mass flowering events; whereas the herbaceous bamboos are pluricarpic, but often are found with no reproductive structures. The leaf blade anatomy of 16 sympatric species of native Brazilian bamboos (Olyreae and Bambuseae) from the Atlantic Rainforest was studied in order to detect useful features for their identification. All the studied species share the following features: epidermis with a single stratum of cells; adaxial bulliform cells; mesophyll with arm cells, rosette cells, and fusoid cells; and collateral vascular bundles. Herbaceous bamboos share two features: papillae scattered on the abaxial surface and parallel-sided arrays of bulliform cells; whereas woody bamboos share: centrally organized papillae and fan-shaped arrays of bulliform cells. Also within the woody bamboos, intercostal fibers and a midrib with only one vascular bundle (simple midrib) characterize the subtribe Arthrostylidiinae; whereas a midrib with more than one vascular bundle (complex midrib) and a stomatal apparatus with two pappilae per subsidiary cell characterize the subtribe Chusqueinae. There are also diagnostic features for the sampled species, such as: papillae shape, and the outline and structure of the midrib. An identification key for all the studied species is provided based on the anatomical features.Keywords: Arthrostylidiinae, Bambuseae, Chusqueinae, leaf blade, Olyreae.A utilidade da anatomia da lâmina foliar para a identificação e sistemática de espécies de Bambuboideae (Poaceae, Poales) ResumoBambusoideae é uma subfamília que inclui diversas espécies de bambus herbáceos (Olyreae) e lignificados (Arundinarie e Bambuseae). Bambus lignificados geralmente apresentam dificuldades de delimitação e identificação, devido principalmente ao ciclo monocárpico e longa amplitude temporal entre florações; enquanto que bambus herbáceos possuem ciclo pluricárpico, porém frequentemente são encontrados em estágio vegetativo. Foi estudada a anatomia da lâmina foliar de 16 espécies de Bambusoideae (Olyreae e Bambuseae), simpátricas e nativas do Brasil, visando levantar caracteres úteis para sua identificação. Todos os táxons estudados compartilham: epiderme uniestratificada; células buliformes na face adaxial; mesofilo com células invaginantes, células em roseta e células fusoides; e feixes vasculares colaterais. Bambus herbáceos compartilham: papilas dispersas na face abaxial e grupos de células buliformes organizadas paralelamente; enquanto que bambos lignificados compartilham: papilas organizadas em colunas centrais e grupos de células buliformes em forma de leque. Ainda dentre os bambus lignificados, fibras intercostais e nervura central com apenas um feixe vascular (nervura central simples) caracterizam a subtribo Arthrostylidiinae; enquanto que nervura central com mais d...

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Section: Introductionmentioning

confidence: 99%

The utility of Bambusoideae (Poaceae, Poales) leaf blade anatomy for identification and systematics

et al. 2016

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“…The graminid family Poaceae comprises nearly 12 000 species in 12 subfamilies widespread mainly in grasslands and forests all over the world (Grass Phylogeny Working Group II, 2012;Soreng et al, 2015Soreng et al, , 2017, diversity for which anatomical studies have often provided useful features that aid in identification and delimitation at various taxonomic levels (e.g. Calderón and Soderstrom, 1973;Zuloaga et al, 1992Zuloaga et al, , 1993Aliscioni et al, 2003Aliscioni et al, , 2016Guglieri et al, 2008;Oliveira et al, 2008;Pelegrin et al, 2009;Leandro et al, 2016a), and also often indicate potential synapomorphies for clades (Judziewicz et al, 1999;Grass Phylogeny Working Group, 2001;Clark et al, 2015;Leandro et al, 2016bLeandro et al, , 2017.…”

Section: Introductionmentioning

confidence: 99%

“…(2) the BOP clade (Bambusoideae and also in a few members of Oryzoideae and Pooideae) (Tateoka, 1963;Barkworth et al, 2007;Leandro et al, 2016a); and (3) the PACMAD clade (in a few members of Panicoideae) (Watson et al, 1985;Clayton and Renvoize, 1986;Killeen and Clark, 1986;Zuloaga et al, 1992). A summary phylogeny showing the relationships within the family and the occurrence of fusoid cells is provided as supplementary material (Supplementary Data S1).…”

Section: Introductionmentioning

confidence: 99%

“…For example, in bamboos, plants living in sunny habitats often lack these cells, whereas the same species growing in shade always have them (e.g. March and Clark, 2011); in contrast, Oryzeae (Oryzoideae) comprise aquatic or mesic species, which may exhibit fusoid cells, but primarily live in open habitats (Tateoka, 1963;Leandro et al, 2016a).…”

Section: Introductionmentioning

confidence: 99%

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Fusoid cells in the grass family Poaceae (Poales): a developmental study reveals homologies and suggests new insights into their functional role in young leaves

et al. 2018

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Background and Aims In mature grass leaf blades as seen in cross-section, oblong cell-like structures have been interpreted most recently as intercellular gas spaces delimited by successive collapsed fusoid cells. These cells have been reported in at least seven of 12 subfamilies of Poaceae and are considered a synapomorphy for the family; however, no developmental work has been performed to verify their meristematic origin or to assess possible homologies within the graminid clade (= Flagellariaceae + [(Joinvilleaceae + Ecdeiocoleaceae) + Poaceae]) or among subfamilies of Poaceae. A developmental study was therefore carried out, including 20 species in three families (Flagellariaceae, Joinvilleaceae and Poaceae), representing the earlier-diverging and derived branches within the graminid clade and Poaceae. • Methods Light microscopy was combined with scanning electron microscopy, cryoscanning electron microscopy and transmission electron microscopy to study the development of leaves taken from the shoot apex of young plants. Mature leaf blades also were taken from living or dried plants and the mid-portion was studied. • Key Results Developmental results show that, in mature leaf blades as seen in cross-section, one apparent fusoid cell is typically a cavity resulting from the collapse of the initial fusoid cell and its internal divisions, which are herein interpreted as derivative cells with formation of cell plates only. Each cavity is delimited by successive collapsed fusoid cells arranged perpendicularly to the veins. Fusoid cells in all studied Poaceae members originate from the ground meristem, as do the colourless cells in Joinvillea ascendens (Joinvilleaceae). These two types of mesophyll cell have a strongly similar ontogeny, distinguished mainly by the collapse of the fusoid cells in Poaceae, which is not observed in the colourless cells in J. ascendens. • Conclusions Within the Poaceae, the meristematic origin of fusoid cells is the same in the early-diverging lineages, BOP clade and Panicoideae, and thus they are homologous within the family. The same topography and meristematic origin suggest that fusoid cells in Poaceae and colourless cells in Joinvilleaceae are homologous. The results also suggest that the role played by the fusoid cells in young grass leaves is related to synthesis and storage of starch granules at early stages of development.

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“…Originally systematic studies addressing the systematics of Aristolochiaceae were preliminary based on morphological and anatomical characters, especially seeds ( [1], [2], [3]), flowers [4], and leaf characteristics [5]. In general, characteristics of the leaf surface, especially the morphology and chemical composition of epicuticular waxes, has been proofed to be of high taxonomical value in both major plant lineages ( [5], [6], [7]) and among species ([8], [9], [10]). In addition to the wide range of usability of epicuticular wax morphology, this research was enhanced by the ease to obtain data by scanning electron microscopy (SEM) from e.g.…”

Section: Introductionmentioning

confidence: 99%

A Survey of Leaf Epicuticular Waxes and Trichomes in the Genus Aristolochia (Aristolochiaceae) using Scanning Electron Microscopy (SEM)

Mahfoud¹,

Wanke²,

Neinhuis³

2018

IJAES

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A scanning electron microscopic survey of leaf surface features in the genus Aristolochia was performed including samples from the New and Old World with a special emphasis on the Mediterranean species. The present SEM-study revealed that the investigated taxa can be divided into three groups according to the type of leaf epicuticular waxes. Furthermore, the Mediterranean Aristolochia species can be divided into two groups: all west Mediterranean species are characterized by wax platelets whereas the Caucasian and Near East species show wax rodlets known as the "Aristolochia type". Other investigated characters are the absence or presence and the type of trichomes on the adaxial leaf surface. In general a glabrous group (~ 19% of the investigated taxa) and the pubescent group (~ 81%) could be separated. The latter can further be subdivided into four basic types of trichomes: a) hookshaped trichomes (two cells) present in most taxa, b) conical multi-cellular and erect to sub-erect trichomes being characteristic for some East Mediterranean species, c) multicellular-elongated trichomes with cylindrical base and an elongated acute apex (Aristolochia grandiflora complex and Aristolochia subgenus Siphisia), and d) glandular trichomes with rounded tip found only in A. triactina (subgenus Pararistolochia).

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Micromorphology and anatomy of the leaf blade: a contribution to the taxonomy of Luziola (Poaceae, Oryzoideae) from the Pantanal, Brazil

Cited by 11 publications

References 31 publications

The utility of Bambusoideae (Poaceae, Poales) leaf blade anatomy for identification and systematics

The utility of Bambusoideae (Poaceae, Poales) leaf blade anatomy for identification and systematics

Fusoid cells in the grass family Poaceae (Poales): a developmental study reveals homologies and suggests new insights into their functional role in young leaves

A Survey of Leaf Epicuticular Waxes and Trichomes in the Genus Aristolochia (Aristolochiaceae) using Scanning Electron Microscopy (SEM)

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