Pollen morphology in Dodartia, Lancea, Leucocarpus, and Mazus and an analysis of pollen morphotypes in the Mimuleae (Scrophulariaceae)

Argue, Charles L.

doi:10.1139/b84-174

Cited by 21 publications

(10 citation statements)

References 10 publications

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“…Las especies incluidas actualmente en diferentes familias pero que antes pertenecían a Scrophulariaceae sensu lato, mostraron una gran diversidad polínica en coincidencia con otros autores (Varghese, 1968;Karim & El-Oqlah, 1989;Inceoglu, 1982;Hong, 1984;Argue, 1980Argue, , 1981Argue, , 1984Argue, , 1985Argue, , 1986Argue, , 1990Argue, , 1993Bigazzi & Tardelli, 1990;Correa et al, 1995;Fernández et al, 1997;Santos & Melhem, 1999, 2000Wang et al, 2003Wang et al, , 2009Saeidi-Mehrvarz & Zarrei, 2006;Kheiri et al, 2006). Las variaciones morfológicas evidenciadas en los 17 tipos polínicos descriptos en el presente estudio; ponen de manifiesto el carácter euripolínico del grupo, destacado por Varghese (1968).…”

Section: Discussionunclassified

“…Los resultados de nuestros análisis realizados en especies de Mimulus definen un solo tipo polínico: espiraperturado. Sin embargo, en este género, Argue (1980Argue ( , 1981Argue ( , 1984Argue ( y 1986 determinó varios tipos polínicos en base a las aperturas: 3-colpado, 3-colporado, estéfanocolpado y espiraperturado, con varios subtipos de acuerdo a la escultura y tamaño. Esta variabilidad polínica observada en el género podría relacionarse con la hipótesis de su origen no monofilético (Beardsley & Olmstead, 2002).…”

Section: Discussionunclassified

“…Peplidium y 3-colporado en Leucocarpus (Argue, 1984, Chadwell et al, 1992; razón por la cual se consideraría filogenéticamente a estos géneros como derivados de Mimulus (Beardsley & Barker, 2005).…”

Section: Discussionunclassified

“…126 especies 62,7% Argue (1980Argue ( , 1981Argue ( ,1984Argue ( ,1986, Chadwell et al (1994) Plantaginaceae Acanthorrhinum Rothm. , Amphianthus Torr., Anarrhinum Desf., Angelonia Bonpl., Erdtman (1966), Varguese (1968), Hong (1984), Elisens (1986), Godoy & Diez (1987), Minkin & Eshbaugh (1989), Argue (1985Argue ( , 1986Argue ( , 1990Argue ( , 1993, Bigazzi & Tardelli (1990), Fernández et al (1997), Klimko et al (2004); Al-Quran 2004 Las especies estudiadas de la familia Orobanchaceae presentan granos medianos (30 x 30 µm), predominantemente esferoidales, inaperturados (Orobanche lutea), 3-colpados ( Seymeria deflexa, Orobanche alba) , 4-brevicolpados (Dasistoma macrophyllum), (3) 4-5-colporados (Castilleja lithospermoides).…”

Section: 8%mentioning

confidence: 99%

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Valor taxonómico del polen en Scrophulariaceae sensu lato

Sosa¹,

Salgado²

2016

Bol. Soc. Argent. Bot.

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Este trabajo es el resultado del estudio palinomorfológico de 32 especies pertenecientes a 19 géneros de Scrophulariaceae sensu lato. Además se realizó un registro exhaustivo de la informaciónbibliográfica existente sobre la morfología polínica con el objetivo de analizar las relaciones entre las variables palinológicas y la clasificación sistemática actual. Los granos de polen analizados son:mónades, radiosimétricos e isopolares, de tamaño variable desde pequeños (11 ?m) hasta medianos (51 ?m), predominantemente esferoidales (P/E= 1), a veces suboblatos (P/E= 0,76), oblato-esferoidales (P/E= 0,95), prolatos (P/E=1,63) y perprolatos (P/E= 2,63). Inaperturados, 3-(4-5) colpados, 3-(4-5) colporados, espiraperturados, 2-8 sincolpados, 3-diploporados y pantoporados. La exina puede ser semitectada (retipilada, reticulada o estriada perforada) y tectada (psilada, foveolada, perforada, escábrida, rugulada, verrugosa, granulada, estriada o equinulada). Se realizó un análisis estadístico en base a una matriz de datos, compuesta por los caracteres palinológicos de 32 especies estudiadas sumado a la recopilación bibliográfica de 140 géneros y 218 especies pertenecientes a Scrophulariaceae sensu lato. El análisis de agrupamiento (UPGMA), confirmó que las diferencias palinomorfológicas apoyan la clasificación sistemática actual.

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Section: Discussionunclassified

Section: 8%mentioning

confidence: 99%

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Valor taxonómico del polen en Scrophulariaceae sensu lato

Sosa¹,

Salgado²

2016

Bol. Soc. Argent. Bot.

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“…This SEM alternative pertains to pollen that in some manner, either intentionally or fortuitously, has been broken, fractured, or cracked, so that surfaces of the exine interior are exposed.The information from such grains presents a characterization of basic pollen wall structural patterns that can be of great value in describing different taxonomic hierarchies (e.g., Echlin 1967 ;Chanda and Rowley 1967;Cerceau-Larrival 1971;Cerceau-Larrival and Roland-Heydacker 1976; Le Thomas and Lugardon 1976;Kalis 1979;Lobreau-Callen 1980Guyot, Cerceau-Larrival, Carbonnier-Jarreau, Derouet, and Relot 1980;Poole 1981;Argue 1983;Tormo, Ubera, Dominguez, and Guerrero 1984;Sengin 1986;Nilsson 1986; see other citations below). Figures 2-9 illustrate this with an unsystematic selection of angiosperm genera while in Figures 10-16 the selection if familial.…”

Section: Fractured Pollenmentioning

confidence: 99%

Adaptability of Scanning Electron Microscopy to Studies of Pollen Morphology

Skvarla¹,

Rowley²,

Chissoe³

1988

Aliso

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We have explored methods to achieve excellent results in study of the pollen grain wall by using only one electron microscope, the scanning electron microscope (SEM). While the secondary electron imaging mode , the most common in use, has great value in characterizing the exine surface it is possible to obtain a more comprehensive representation of pollen grain walls by expanding the capability of the secondary mode and mak ing use of backscatter and transmission imaging detectors. In this way information is obtained about internal exine features that are likely to be more stable phylogeneticall y than the generally late-to-form surface structure. We illustrate the usefulness ofnatural and induced fractures, cryornicrotorny, thin-section examination, section deplasticization, localized acetolysis and pollen erosion by ionic bombardment in imaging exine structure. Techniques for expand ing the use of SEM in taxonomic stud ies of mature pollen grain walls are outlined in flow chart sketches and illustrated with numerous examples from angiosperm pollen.

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Pollen Morphology in the Genera Monttea and Melosperma (Scrophulariaceae)

Argue

1985

American J of Botany

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Pollen of the scrophulariaceous genera Melosperma and Monttea was studied with light and scanning electron microscopy. Both have single, radiosyrnmetric, isopolar, trizoniaperturate pollen grains with usually ruptured colpus membranes. tectate-perforate to semitectate exines with a columellate interstitium and pitted or perforate nexines. Intergeneric differences in pollen morphology are established based on the differential correlation of sculpturing characters. Comparisons of the pollen of Melospcrma and Monttea with that of the tribe Minuleae sensu stricto reveals no difference in the case of Melosperma and the existence of intermediate morphologies and "reticulate" similarities in the case of Monttea; the taxonomic significance of this morphological intergradation is considered. The transfer of Oxycladus aphyllus to Monttea is consistent with the pollen evidence, but proposed affinities between Monttea and tribe Antonieae of the Loganiaceae are not supported.

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Pollen morphology in Dodartia, Lancea, Leucocarpus, and Mazus and an analysis of pollen morphotypes in the Mimuleae (Scrophulariaceae)

Cited by 21 publications

References 10 publications

Valor taxonómico del polen en Scrophulariaceae sensu lato

Valor taxonómico del polen en Scrophulariaceae sensu lato

Adaptability of Scanning Electron Microscopy to Studies of Pollen Morphology

Pollen Morphology in the Genera Monttea and Melosperma (Scrophulariaceae)

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