Pollen types of the Egyptian species of the genus <i>Salvia</i> (Lamiaceae)

Hassan, Nasr; Osman, Ahmed K.; Garf, Ibrahim A. El

doi:10.1002/fedr.200911118

Cited by 14 publications

(20 citation statements)

References 9 publications

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“…An operculum with granule was seen in all the taxa (Figures 1-3). Similarly, some authors (Perveen and Qaiser, 2003;Moon et al, 2008c;Hassan et al, 2009) found colpi with granulate membranes and pointed, acute, and obtuse ends. The exine is semitectate (Walker, 1974;Hamzaoğlu et al, 2005;Jafari and Nikian, 2008) and muri are simply columellate (Figures 4 and 5).…”

Section: Discussionmentioning

confidence: 76%

“…Hymenosphace (Table 2; Figure 1). Hamzaoğlu et al (2005), using the Wodehouse method, and Moon et al (2008c) and Hassan et al (2009), using the acetolyzed method, found some differences in the size and shape of the Salvia species examined. These differences can be mainly caused by different preparation techniques.…”

Section: Discussionmentioning

confidence: 99%

“…The exine is semitectate (Walker, 1974;Hamzaoğlu et al, 2005;Jafari and Nikian, 2008) and muri are simply columellate (Figures 4 and 5). Hassan et al (2009) examined the pollen morphology of 7 Salvia species distributed in Egypt, including Salvia aegyptiaca L., S. deserti Decne, S. lanigera Poir, S. palaestina, S. sclarea, S. spinosa, and S. verbenaca L., and distinguished 4 pollen types: reticulate-perforate in S. aegyptiaca and S. lanigera; reticulate-granulate in S. spinosa; bireticulate in S. palaestina, S. sclarea, and S. verbenaca; and microreticulate in S. deserti. According to the present study, SEM microphotographs show that S. palaestina and S. sclarea also have bireticulate exine sculpturing.…”

Section: Discussionmentioning

confidence: 99%

“…Exine sculpturing displays 2 distinct types of surface structures: bireticulate (the common type) and reticulateperforate (Hassan et al, 2009 The secondary muri of S. chionantha, S. microstegia, S. modesta, S. tobeyii, and S. xanthocheila are discontinuous (Figures 4 and 5). S. palaestina has thicker primary muri and secondary lumina than the others and is almost circular (Figure 4).…”

Section: Exine Sculpturingmentioning

confidence: 99%

“…There are a large number of studies on pollen morphology in Lamiaceae (Erdtman, 1945;Cantino et al, 1992;Harley et al, 1992;Cantino, 1993, 1994;Celenk et al, 2008;Moon et al, 2008aMoon et al, , 2008bMoon et al, , 2008cSalmaki et al, 2008;Hassan et al, 2009;Aytaç et al, 2012), but only a few studies have been conducted on Salvia (Henderson et al, 1968;Jafari and Nikian, 2008;Hassan et al, 2009;İlçim et al, 2009;Kahraman et al, 2009aKahraman et al, , 2009bKahraman et al, , 2010aKahraman et al, , 2010bKahraman et al, , 2010cKahraman et al, , 2011Kahraman and Doğan, 2010;Celep et al, 2011;Özler et al, 2011). Henderson et al (1968) gave brief descriptions of the pollen morphology of 59 Salvia taxa, 20 of which grow in Turkey.…”

Section: Introductionmentioning

confidence: 99%

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Pollen morphology of Hymenosphace and Aethiopis sections of the genus Salvia (Lamiaceae) in Turkey

Özler¹,

Pehlivan²,

Celep³

et al. 2013

Turk J Bot

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Palynological characteristics of 30 Salvia taxa in sections Hymenosphace and Aethiopis from Turkey were investigated by light and scanning electron microscopy. S. aethiopis (sect. Aethiopis) has the smallest pollen while S. blepharochlaena (sect. Hymenosphace) has the largest pollen. The basic shape of the pollen grains in most taxa is suboblate, oblate-spheroidal, or prolate-spheroidal to spheroidal; however, subprolate pollen grains are occasionally are found in S. cassia of sect. Aethiopis. Hexacolpate pollen is dominant in all studied taxa, but heptacolpate and octacolpate pollen grains are mixed together in S. palaestina (heptacolpate, 20%) and S. candidissima subsp. candidissima (heptacolpate, 2% and octacolpate, 40%). The exine sculpturing is bireticulate (the common type) or reticulate-perforate. The bireticulate and the reticulate-perforate sculpturing patterns can be divided into subtypes according to the number of primary lumina. Taxonomic implications of the pollen data are also discussed.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Exine Sculpturingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Pollen morphology of Hymenosphace and Aethiopis sections of the genus Salvia (Lamiaceae) in Turkey

Özler¹,

Pehlivan²,

Celep³

et al. 2013

Turk J Bot

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Taxonomic study of subfamily Nepetoideae (Lamiaceae) by polynomorphological approach

Gul

Ahmad

Zafar

et al. 2019

Microscopy Res & Technique

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The present study is insight into pollen morphology for characterizing species and their utility in the taxonomic separation of certain taxa of subfamily Nepetoideae (Lamiaceae) from Pakistan.The pollen micromorphology of 11 species of the Nepetoideae was analyzed and documented using light microscopy and scanning electron microscopy (SEM) for both qualitative and quantitative characteristics. Most species have hexazonocolpate pollen grains but trizonocolpate and tetrazonocolpate pollen with circular and oval amb were also rarely observed in Mentha spicata.The basic pollen shape in most of the studied species was subspheroidal but prolate grains were also observed in M. spicata, S. coccinea, and S. plebeia. The exine sculpturing of Nepetoideae pollen was taxonomically very informative particularly at subfamily level. Observations of exine sculpturing with SEM revealed various types of pollen grains: reticulate, bireticulate, microreticulate, perforate, aerolate, and gammate. The bireticulate type further subdivided into three subtypes based on the number of secondary lumina in each primary lumen and is characterized by varying characteristics of the secondary reticulum and primary muri. A significant variation was observed in colpus surface ornamentation. The maximum polar diameter was found in O. americanum (58 ± 5.8 μm) and the maximum equatorial diameter observed in O. basilicum (50.25 ± 1.37 μm). Pollen features of the studied species were discussed and compared based on the current taxonomical concepts. The results showed that pollen traits of the subfamily Nepetoideae was found significant to classify the taxa. Furthermore, pollen features provide additional evidence to distinguish macromorphologically similar taxa from each other. K E Y W O R D S micromorphology, Nepetoideae, pollen, SEM, taxonomic significance

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Comparative pollen and foliar micromorphological studies using light microscopy and scanning electron microscopy of some selected species of Lamiaceae from Alpine Zone of Deosai Plateau, Western Himalayas

Bano

Rashid

Ahmad

et al. 2020

Microscopy Res & Technique

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The study was conducted to highlight a detailed account of morphology of pollen chosen species of Lamiaceae through scanning electron microscopy, and the anatomical characteristics of leaf epidermis of seven species using simple light microscopy.In results, Anisomeles indica and Otostegia aucheri belong to subfamily Lamioideae because it has tricolpate pollen while the rest eight species belong to subfamily Nepetoideae (hexacolpate pollen). The exine sculpturing of pollen of studied species was found to be reticulate. In the family Lamiaceae, four kinds of stomata were found anomocytic, anisocytic, diacytic, and actinocytic, respectively. The cell wall patterns of epidermal cells were irregular or polygonal with straight or undulate walls. It was noted that the variety of the epidermal trichomes seems of taxonomically important for the identification of species of Lamiaceae. Both nonglandular and glandular trichomes were analyzed. The nonglandular trichomes were characterized with long, thin, and pointed apical unicellular cells. The nonglandular trichomes were A-shaped in Thymus linearis. In Perovskia abrotanoides, stellate glandular trichomes were observed whereas in A. indica and Mentha royleana both glandular and nonglandular trichomes were found. In A. indica, the nonglandular trichomes were sessile and peltate in M. royleana. For the first time in this study, pollen and foliar micromorphological features of selected species of this area are carried out. These taxonomic characters were found to be important in discrimination of species from each other.In future, the detailed study with comprehensive morphology coupled with other important characters is required for delimitation of taxa at various levels. K E Y W O R D Slight microscopy, microscopic anatomy, pollen microscopy, scanning electron microscopy, surface analysis

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Pollen types of the Egyptian species of the genus Salvia (Lamiaceae)

Cited by 14 publications

References 9 publications

Pollen morphology of Hymenosphace and Aethiopis sections of the genus Salvia (Lamiaceae) in Turkey

Pollen morphology of Hymenosphace and Aethiopis sections of the genus Salvia (Lamiaceae) in Turkey

Taxonomic study of subfamily Nepetoideae (Lamiaceae) by polynomorphological approach

Comparative pollen and foliar micromorphological studies using light microscopy and scanning electron microscopy of some selected species of Lamiaceae from Alpine Zone of Deosai Plateau, Western Himalayas

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