Pollen morphology of Austrocylindropuntia Backeb, Maihueniopsis Speg., Opuntia Mill. and Tephrocactus Lem. (Cactaceae, Opuntioideae) of Argentina

Garralla, Silvina Susana; Cuadrado, Graciela Ana

doi:10.1016/j.revpalbo.2007.01.002

Cited by 14 publications

(10 citation statements)

References 9 publications

(9 reference statements)

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“…Cactaceae has pantoporate and tricolpate pollen grains which appears to be only two outlines within family Cactaceae as described previously (Cuadrado & Garralla, 2009;Garralla et al, 2013;Garralla & Cuadrado, 2007;Kurtz, 1948;Kurtz Jr, 1963). This study also showed that the Opuntia species have prolate spheroidal, large size and pantoporate pollen grains.…”

Section: Palynologysupporting

confidence: 83%

Morpho‐palynological and anatomical studies in desert cacti (Opuntia dillenii and Opuntia monacantha) using light and scanning electron microscopy

Majeed

Zafar

Ahmad

et al. 2022

Microscopy Res & Technique

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Opuntia is the most diverse and widely distributed drought resistant promising genus of family Cactaceae. The cladodes were utilized to quantify the chemical composition of these plants helpful in lignocellulose conversion and their application towards biofuel production. The present study was aimed to evaluate and compare the taxonomic relationship based on morphology, stem anatomy and palynology of important desert cacti including Opuntia dillenii and Opuntia monacantha. This study also evaluates the potential usefulness of morphological, anatomical and pollen traits using light and scanning electron microscopy. The obtained microcharacters of stem and flowers are considered diagnostic at the generic and specific levels. Some distinguishing morphological features observed were elliptical to obovate cladodes, 1-7 spines per areole and presence of glochidia in O. dillenii. Pollen and stem anatomical characters of the studied taxa are considered highly diagnostic at the generic and species levels. The epidermis has irregular and wavy cells, with straight to sinuate wall pattern and paracytic stomata. Pollen grains appear as pantoporate and prolate spheroidal having reticulate to perforate-reticulate sculpturing while exine semi-tectate to tectate. The taxonomic features studied could be valuable to elaborate and helpful in correctly identification of Opuntia species. The methods of diverse microscopic examination also providing sufficient evidence about the taxonomy of the Opuntia species. Research Highlights• Description and illustration of desert cacti Opuntia.• Morpho-anatomy and palynology were studied with LM and SEM.• Highly variation in taxonomic qualitative and quantitative features.• Systematic significance based on taxonomic characters was presented.

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Section: Palynologysupporting

confidence: 83%

Morpho‐palynological and anatomical studies in desert cacti (Opuntia dillenii and Opuntia monacantha) using light and scanning electron microscopy

Majeed

Zafar

Ahmad

et al. 2022

Microscopy Res & Technique

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“…Grains are either tricolpate or periporate, which still seem to be the only two forms within the Cactaceae family, as already shown in earlier studies for other geographical regions throughout the Americas (Garralla et al 2013, Cuadrado & Garralla 2009, Garralla & Cuadrado 2007, Kurtz 1948, 1963. The family is further characterized by relatively large pollen grain diameter, between 40 and 100μm, compared to other species in the same geographical setting (10-45μm).…”

Section: Discussionsupporting

confidence: 54%

Pollen morphology of Cactaceae in Northern Chile

2015

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Chile is habitat to over 140 species of cactus of which 45% are endemic and most of them grow in the arid northernmost part of the country between 18°-32°S. As the Cactaceae family plants are quite well adapted to arid environments, their fossil pollen may serve as a tool to reconstruct past environmental dynamics as well as to trace some issues regarding the family evolution or even some autoecological aspects. Aiming to create a reference atlas to be applied to some of these purposes, the pollen morphology of the following 14 different species of the Cactaceae family from Northern Chile was studied under optical microscopy: Cumulopuntia sphaerica, Maihueniopsis camachoi, Tunilla soehrensii, Echinopsis atacamensis, Echinopsis coquimbana, Haageocereus chilensis, Oreocereus hempelianus, Oreocereus leucotrichus, Copiapoa coquimbana, Eriosyce aurata, Eriosyce subgibbosa, Eulychnia breviflora, Browningia candelaris and Corryocactus brevistylus. Pollen grains of species of the subfamily Opuntioideae are spheroidal, apolar and periporate whereas grains of the subfamily Cactoideae are subspheroidal, bipolar and tricolpate and can be taxonomically differentiated between tribes. The results show that it is possible to identify pollen from the Cactaceae family at the genus level but pollen taxonomic resolution may be complicated to identify up to a specific level. A wider reference collection considering more characters than those included in the present study could improve this aspect in the near future. KEYWORDS:Pollen morphology, Cactaceae, biogeography, palaeoecology, Chile. RESUMENActualmente crecen en Chile más de 140 especies de cactus, de las cuales el 45% son endémicas y la mayoría de ellas se distribuyen en la zona norte y más árida del país entre 18°-32°S. Como las Cactáceas se encuentran muy bien adaptadas a los ambientes áridos, el polen fósil de esta familia puede ser utilizado como herramienta para reconstruir la dinámica ambiental pasada así como para estudiar aspectos relacionados a su historia evolutiva o bien de su autoecología. Con el objetivo de crear una colección de referencia asociada a los propósitos mencionados anteriormente, se estudió con microscopía óptica la morfología del polen de las siguientes 14 especies de Cactáceas del norte de Chile: Cumulopuntia sphaerica, Maihueniopsis camachoi, Tunilla soehrensii, Echinopsis atacamensis, Echinopsis coquimbana, Haageocereus chilensis, Oreocereus hempelianus, Oreocereus leucotrichus, Copiapoa coquimbana, Eriosyce aurata, Eriosyce subgibbosa, Eulychnia breviflora, Browningia candelaris y Corryocactus brevistylus. Los granos de polen de las especies de la subfamilia Opuntioideae son esferoidales, apolares y periporados. Granos de la subfamilia Cactoideae son subesferoidales, isopolares y tricolpados y se pueden diferenciar taxonómicamente entre tribus. Los resultados indican que es posible diferenciar los granos de polen de las Cactáceas a nivel de género pero que debido a la resolución taxonómica de este análisis, la determinación a nivel de es...

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“…Por otra parte, al comparar la morfología polínica de las especies correspondientes a las subfamilias estudiadas, con el polen de las otras Cactaceae de Argentina analizadas hasta el momento (Garralla & Cuadrado, 2007;Salgado & Garralla, 2008;Cuadrado & Lattar, com. pers.…”

Section: Discusión Y Conclusionesunclassified

“…Posteriormente, Leuenberger (1986) y (1997) publicó dos trabajos monográficos sobre las especies de Pereskia y de Maihuenia respectivamente, en donde analizó, entre otros caracteres, las generalidades del polen de ambos géneros. Recientemente, Garralla & Cuadrado (2007) estudiaron palinológicamente las especies de Opuntioideae de Argentina, y las especies de Rebutia K. Schum. (Cactoideae) y sus implicancias en las definiciones de las especies de dicho género.…”

Section: Introductionunclassified

Palinología de los géneros de Cactaceae Maihuenia (Maihuenioideae) y Pereskia (Pereskioideae) de Argentina

Cuadrado

Garralla

2009

Bonplandia

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<div>Fueron estudiados y descriptos con microscopio óptico y microscopio electrónico de barrido,</div><div>los granos de polen de cinco especies argentinas de dos géneros, Maihuenia (F.C.C.Weber)</div><div>K. Schum. y Pereskia Mill., pertenecientes a las subfamilias Maihuenioideae y Pereskioideae</div><div>(Cactaceae). Maihuenia patagonica (Phil.) Britton & Rose, M. poeppigii (Otto ex Pfeiff.) F.A.C.</div><div>Weber ex K. Schum., (Maihuenioideae), Pereskia aculeata Mill., P. nemorosa Rojas Acosta y</div><div>P. sacharosa Griseb. (Pereskioideae). Los granos de polen de Maihuenia son prolatos o</div><div>esferoidales, medianos o grandes y los de Pereskia son todos esferoidales y grandes. Las</div><div>aperturas muestran variación en número, tres a catorce, pero todas son colpadas y tienen</div><div>diferente modelo de ubicación: Maihuenia tiene granos tricolpados y Pereskia 6-14</div><div>pantocolpados, algunos de éstos forman sincolpos. La escultura no muestra marcadas diferencias</div><div>entre las especies, ella es microequinada y nanoequinada con perforaciones rodeadas</div><div>de un engrosamiento. Se presenta una clave para diferenciar las especies de cada</div><div>género.</div>

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Pollen morphology of Austrocylindropuntia Backeb, Maihueniopsis Speg., Opuntia Mill. and Tephrocactus Lem. (Cactaceae, Opuntioideae) of Argentina

Cited by 14 publications

References 9 publications

Morpho‐palynological and anatomical studies in desert cacti (Opuntia dillenii and Opuntia monacantha) using light and scanning electron microscopy

Morpho‐palynological and anatomical studies in desert cacti (Opuntia dillenii and Opuntia monacantha) using light and scanning electron microscopy

Pollen morphology of Cactaceae in Northern Chile

Palinología de los géneros de Cactaceae Maihuenia (Maihuenioideae) y Pereskia (Pereskioideae) de Argentina

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