Pollen morphology of four endemic species of &lt;i&gt;Pedicularis&lt;/i&gt; L. from alpine zone of the Deosai Plateau, Himalayan range

Bano, Abida; Ahmad, Mushtaq; Khan, Mir Ajab; Zafar, Muhammad; Sultana, Shazia; Ullah, Zahid

doi:10.3329/bjpt.v19i1.10935

Cited by 14 publications

(17 citation statements)

References 12 publications

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“…The diversity of pollen and their morphology of 10 plants of Asteraceae species was reported by Ahmad et al () and they concluded that that the chosen species are well established in the region. Bano et al () examined the pollen morphology and few endemic species of Pedicularis from Deosai Plateau. Bano, Ahmad, Zafar, et al () and Shah et al () indicated 50 medicinal species from Deosai Plateau used to cure different ailments by local inhabitants.…”

Section: Introductionmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%

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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“…Out of the 4 types of exine pattern viz., microscabrate-punctate, psilate, microfoveolate-rugulate and medium scabrate-punctate recognized in the present study, of which microfoveolaterugulate exine is reported for the first time in the genus Pedicularis. Bano et al, (2012) also reported microscabrate and psilate exine ornamentation while studying the four endemic species of Pedicularis from Alpine zone of Deosai plateau Himalayan region. However, during the recent treatment by Mill (2015) two species studied by Bano et al, (2012) were no more endemic as they were also reported from other areas.…”

Section: Discussionmentioning

confidence: 88%

“…Bano et al, (2012) also reported microscabrate and psilate exine ornamentation while studying the four endemic species of Pedicularis from Alpine zone of Deosai plateau Himalayan region. However, during the recent treatment by Mill (2015) two species studied by Bano et al, (2012) were no more endemic as they were also reported from other areas.…”

Section: Discussionmentioning

confidence: 88%

“…In his recent treatment of the family Scrophulariaceae for Flora of Pakistan, Mill (2015) recognized thirty-two species of the genus Pedicularis from Pakistan and Kashmir. There are no exclusive reports on the pollen morphology of Pedicularis species from the area under consideration with the exception of Bano et al, (2012) who studied the pollen of 4 endemic species of alpine zone of Deosai plateau -Himalayan range. The objective of the present study was (i) to provide a detailed information of pollen morphology of 22 species of Pedicularis, out of 22 species, pollen of 16 species are examined for the first time of which 6 species are narrow endemic to the area under consideration (Table 1), (ii) also to find out additional micro-morphological characters in this intricate genus and (iii) finally to establish a correlation between the pollen morphological characters and infrageneric classification.…”

Section: Introductionmentioning

confidence: 99%

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Pollen morphology of the genus Pedicularis L. Orobanchaceae from Pakistan and Kashmir and its taxonomic implications

Qaiser¹,

Parveen²

2019

PAK.J.BOT.

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Pollen morphology of 22 species of the genus Pedicularis L. belonging to 11 series from Pakistan and Kashmir was examined by light and scanning electron microscope. Out of 22 species, pollen of 16 species were examined for the first time, of which 6 species were endemic to the area under consideration. The genus Pedicularis is a ± eurypalynous taxon. Pollen grains are usually radially symmetrical, isopolar, tri-syncolpate and bi-syncolpate, prolate-spheroidal, oblatespheroidal, sub-prolate rarely prolate. Sexine is slightly thicker than nexine or as thick as nexine. Tectum is quite variable, ranging from psilate to fine-medium scabrate-punctate or micro-foveolate-rugulate. On the basis of exine ornamentation four distinct pollen types viz., Pedicularis albida-type, Pedicularis oederi-type, Pedicularis bicornuta-type, and Pedicularis roylei-type were recognized. Little correlation was found between the infrageneric classification and the pollen type. Species belonging to one series (an infrageneric category) may fall in different pollen types or vice versa. However, pollen morphology was significantly helpful at specific level within each pollen type. A strong correlation was found between the aperture configuration and corolla type but without any correlation between the pollen type and the corolla type.

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“…The variation in ultrastructural characteristics and surface morphology of pollen grains is often of valuable assistance in delimiting taxonomic relationships, particularly at higher taxonomic ranks for family level: Euphorbiaceae (Perveen and Qaiser, 2005), Tiliaceae, Sterculiaceae and Malvaceae (Husseini, 2006), Cucurbitaceae (Perveen and Qaiser, 2008), Campanulaceae (Erkara et al, 2008), for generic level in Sambucus (Tamas et al, 2009), but also between species as in Pedicularis (Bano et al, 2012). Scanning electron microscopy (SEM) is a valuable tool which can reveal many of these taxonomically useful characters, and have the potential to reveal relationships that are obscure and difficult to demonstrate by other means.…”

Section: Introductionmentioning

confidence: 99%

Pollen morphology of <i>Begonia</i> L. (Begoniaceae) in Nepal

Rajbhandary

Hughes

Shrestha

2012

Bangladesh J. Plant Taxon

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The pollen morphology of 28 Begonia species of Nepal has been examined by scanning electron microscopy (SEM). Comparative pollen analysis was made based on size, shape in polar and equatorial views, P/E ratio, aperture, and exine ornamentation. In this study, four types of pollen ornamentation morphology have been identified. Among Nepalese Begonia, B. roxburghii (section Sphenanthera) has the smallest pollen (11.2-12.8 × 6.4-7.0 µm) and B. flagellaris (section Diploclinium) has the largest pollen (24.3-30.6 × 11.4-12.0 µm). Presence of margo in the pollen ornamentation is a distinguishing character that separates Begonia section Platycentrum from all other sections of Nepalese Begonia.

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Pollen morphology of four endemic species of <i>Pedicularis</i> L. from alpine zone of the Deosai Plateau, Himalayan range

Cited by 14 publications

References 12 publications

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

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

Pollen morphology of the genus Pedicularis L. Orobanchaceae from Pakistan and Kashmir and its taxonomic implications

Pollen morphology of <i>Begonia</i> L. (Begoniaceae) in Nepal

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