Pollen morphology in Brazilian species of <i>Codonanthe</i> (Mart.) Hanst. and <i>Nematanthus</i> Schrader (Gesneriaceae)

Gasparino, Eduardo Custódio; Cruz-Barros, Maria Amélia Vitorino da; Chautems, Alain

doi:10.1080/00173134.2013.826274

Cited by 28 publications

(10 citation statements)

References 15 publications

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“…A definição da largura das aberturas seguiu Gasparino et al (2013) citados por Nagatami & Rossi (2000), não foram estudados pela escassez de material polínico ou por possuírem apenas frutos. O gênero Cordia apresenta heterostilia em suas flores e por esse motivo os materiais foram identificados como apresentando flores brevistilas (B) ou longistilas (L).…”

Section: Methodsunclassified

“…Observações: Os grãos de pólen de Nematanthus villosus foram estudados anteriormente por Gasparino et al (2013). Os dados descritos pelos autores são similares aos obtidos no presente estudo quanto à forma, âmbito, aberturas e ornamentação dos grãos de pólen, no entanto os valores de diâmetros aqui medidos são ligeiramente menores que no referido trabalho.…”

Section: Tournefortia Breviflora DC Figuras 10-13unclassified

“…Para Gesneriaceae foram descritos grãos de pólen em mônades, isopolares, pequenos a grandes, âmbito subcircular, circular, circular-lobado a subtriangular, prolatos, subprolatos, prolato-esferoidais, oblatoesferoidais, suboblatos a oblatos, 3-colpados, (2-)3(-4)-colporados, colporoidados, colpos longos ou curtos, estreitos ou largos, endoaberturas lalongadas, lolongadas ou circulares, exina reticulada, microrreticulada, psilada, perfurada, rugulada, verrugosa ou fossulada (Erdtman 1952, Campos 1962, Melhem & Mauro 1973, Salgado-Labouriau 1973, Nowicke 1974, Howard 1975, Williams 1978, Felice et al 1981, Fritze & Williams 1988, Roubik & Moreno 1991, Luegmayr 1993a, b, Yan et al 1995, Xifreda 1996, Yan et al 1997, Schlag-Edler & Kiehn 2001, Melhem et al 2003, Palee et al 2003, Weber 2004, Gasparino 2008, Fourny et al 2010, Gasparino et al 2011, 2013.…”

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Flora polínica da reserva do parque estadual das fontes do Ipiranga (São Paulo, SP, Brasil). Famílias: 141-Boraginaceae e 149-Gesneriaceae

Gasparino

Souza

Cruz-Barros

2014

Hoehnea

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Section: Methodsunclassified

Section: Tournefortia Breviflora DC Figuras 10-13unclassified

unclassified

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Flora polínica da reserva do parque estadual das fontes do Ipiranga (São Paulo, SP, Brasil). Famílias: 141-Boraginaceae e 149-Gesneriaceae

Gasparino

Souza

Cruz-Barros

2014

Hoehnea

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“…As descrições polínicas e a terminologia foram baseadas respectivamente nos glossários de Barth & Melhem (1988) e Punt et al (2007), o índice de área polar e o índice de largura do colpo foram descritos de acordo com Faegri & Iversen (1966) e Gasparino et al (2013) respectivamente. O cálculo do número de poros em Amarathaceae seguiu Angelini et al (2014).…”

Section: Methodsunclassified

Palinologia de Amaranthaceae e Araliaceae nativas em fragmentos florestais remanescentes da região noroeste do Estado de São Paulo

Landi

Gasparino

2018

Hoehnea

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-(Palynology of native Amaranthaceae and Araliaceae in forest fragments of the Northwest of São Paulo State). We investigated the pollen morphology of two native species of Amaranthaceae and three of Araliaceae from forest fragments in order to contribute with the palynology, taxonomy, and conservation of degraded areas. The pollen grains were acetolyzed, measured, qualitatively described and photographed using light and scanning electron microscopy. Quantitative data were analyzed by descriptive statistics. The pollen grains of Amaranthaceae are monads, small, apolar, spherical, pantoporate, and with metareticulate exine. For Araliaceae, the pollen grains are monads, small to medium, isopolar, subcircular to subtriangular, oblato-spheroidal to subprolate, 3-colporate, sometimes with vestibulum, lalongate endoaperture and microreticulate exine. The pollen data confi rmed Amaranthaceae as a stenopalynous family. On the other hand, the species of Araliaceae studied characteristically present pollen grains apertures that can be used to differentiate them.

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“…5.21 scanning electron microscope for the SEM images, and a JEOL JEM 1010 and a PHILIPS EM 208 transmission electron microscope for the TEM images. Pollen description and terminology follow Punt et al (2007) glossary, and Faegri and Iversen (1966) for the polar area index, and Gasparino et al (2013) for width index of colpi.…”

Section: Methodsmentioning

confidence: 99%

Pollen morphology in Brazilian species of Gloxiniinae (Gesneriaceae): variation in apertures and pattern of ornamentation

et al. 2018

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Gloxiniinae comprises herbs and subshrubs usually growing on rocky outcrops, rocky fields or gallery forests. For Gesneriaceae in some cases variations in pollen morphology allow the differentiation of genera and species. We studied the pollen grains of ten Brazilian species of Gloxiniinae (Gesneriaceae), including the genera Chautemsia, Gloxinia, Goyazia, Mandirola and Seemannia with the purposes of describing the pollen morphology of these genera, and contributing to the taxonomic characterization of the group and a better delimitation of genera and species of Gesneriaceae. The pollen grains were acetolyzed, measured, photographed and described qualitatively. Quantitative data were analyzed through descriptive and multivariate statistics. Non-acetolyzed pollen grains were observed in SEM and TEM in order to provide more details of the ornamentation and the structure of the exine. The analyzed species differ as to the pollen amb, shape, length, width and ends of colpi, presence or absence of margo, type of endoaperture and exine ornamentation. We found circular, subcircular and subtriangular amb, oblate spheroidal and subprolate shape, long or very long colpi, narrow, wide or very wide, with or without margo, lalongate or lolongate endoaperture in microreticulate or reticulate pollen grains. The reticulate ornamentation appears in the Gloxinia species' pollen grains, and lolongate endoapertures represent the pattern for the subtribe pollen grains except in Chautemsia. The pollen grain metrics examined by principal component analysis allow generic distinction. We conclude that qualitative and quantitative pollen data help to delimit the genera and species of Gloxiniinae.

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Pollen morphology in Brazilian species of Codonanthe (Mart.) Hanst. and Nematanthus Schrader (Gesneriaceae)

Cited by 28 publications

References 15 publications

Flora polínica da reserva do parque estadual das fontes do Ipiranga (São Paulo, SP, Brasil). Famílias: 141-Boraginaceae e 149-Gesneriaceae

Flora polínica da reserva do parque estadual das fontes do Ipiranga (São Paulo, SP, Brasil). Famílias: 141-Boraginaceae e 149-Gesneriaceae

Palinologia de Amaranthaceae e Araliaceae nativas em fragmentos florestais remanescentes da região noroeste do Estado de São Paulo

Pollen morphology in Brazilian species of Gloxiniinae (Gesneriaceae): variation in apertures and pattern of ornamentation

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