Modern pollen rain from Udhampur (Jammu and Kashmir), India: insights into pollen production, dispersal, transport and preservation

Quamar, Mohammad Firoze; Ali, Sheikh Nawaz; Pandita, Shevita; Singh, Yashwant

doi:10.1080/01916122.2017.1306811

Cited by 20 publications

(11 citation statements)

References 68 publications

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“…Halophytes are salt resistant plants and belong to certain plant groups which need palynological investigations to identify and discriminate their taxonomic ranks on species and genus level. Palynological evidence plays an important role in the differentiation and identification of closely related taxa by providing valuable information about them (Quamar, Ali, Pandita, & Singh, ).. The comprehensive pollen analysis also provides parameters for the systematic study of plant groups and to predict past and evolution of closely related and problematic taxa (Erdtman, ; Ullah et al, ).…”

Section: Introductionmentioning

confidence: 99%

Palyno‐morphological investigations of halophytic taxa of Amaranthaceae through SEM from Salt range of Northern Punjab, Pakistan

Nazish

Zafar

Ahmad

et al. 2019

Microscopy Res & Technique

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The pollen morphology of 11 salt tolerant plant species of family Amaranthaceae from the salt range of Northern Punjab, Pakistan has been studied. The palyno‐morphological characters were examined using light and scanning electron microscope. The examined all salt tolerant species have a slight difference in size but have similarity in shape, pore ornamentation, and polarity. The observed morphological characters of pollen grains were pollen symmetry, size, shape, pore ornamentation, pore size, number of pores, exine thickness, polar and equatorial diameter and, P/E ratio. Apolar type of pollens has been observed in all species. Shape of pollens was spheroidal. Exine sculpturing of pollen grains was scabrate (six spp), microechinate (four spp), and microechinate‐scabrate (one spp). Different pori numbers were observed in different species. The pantoporate aperturate and sunken pore ornamentation have been reported in all species. A pollen taxonomic key was developed using examined morphological characters for the accurate identification of halophytic taxa. The high fertility and low sterility of pollens confirmed that the selected halophytes are well‐established in the salt region. The findings highlight the taxonomic significance of pollen morphology in correct identification and differentiation of salt tolerant plant species.

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Section: Introductionmentioning

confidence: 99%

Palyno‐morphological investigations of halophytic taxa of Amaranthaceae through SEM from Salt range of Northern Punjab, Pakistan

Nazish

Zafar

Ahmad

et al. 2019

Microscopy Res & Technique

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“…Generally pollen morphology plays an important role in taxonomic and phylogenetic history of the vegetation. Palynological investigations provide valuable information for the differentiation and identification of closely related and problematic taxa (Jafar & Karm, ; Quamar, Ali, Pandita, & Singh, ). Palynological information has wider application and will studies in past as an aid to the identification of related taxa and various major plant groups.…”

Section: Introductionmentioning

confidence: 99%

Identification of monocot flora using pollen features through scanning electron microscopy

Bahadur

Ahmad

Mir

et al. 2018

Microscopy Res & Technique

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Pollen used to track structural and functional evolution in plants as well as to investigate the problems relative to plant classification. Pollen characters including ornamentation, shape, apertural pattern, pollen symmetry, colpus length, width, and margins used to detect the similarities and dissimilarities between genera and also species of the same genus. In this study pollen features of 20 monocot species belonging to 15 genera of the Amaryllidaceae, Asparagaceae, Iridaceae, Ixioliriaceae, Liliaceae, and Xanthorrhoeaceae were studied using scanning electron microscopy (SEM) and light microscopy (LM). In this study two species that is Zephyranthes citrina and Tulbaghia violacea were reported for the first time from Pakistan. Pollen grains were visualized with LM. Non-acetolyzed and acetolyzed pollen were examined using SEM. A taxonomic key was developed to highlight the variation in pollen features in order to make their systematic application for correct species identification.

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“…Pollen morphology plays an important role in the taxonomy and phylogenetic history of plants. Research in the field of palynology provides valuable information for the identification of closely related and complicated classifications as well as taxa whose taxonomy is contested (Jafar and Karm, 2007; Quamar et al ., 2017). In the process of generational transmission, pollen ornamentation, shape, surface, symmetry, colpus length, width and wall structure basically maintained their original morphological characteristics.…”

Section: Discussionmentioning

confidence: 99%

Scanning electron microscopy observations of pollen morphology in common vetch (Vicia sativa) subspecies

Dong

Yang

et al. 2020

J. Agric. Sci.

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Common vetch (Vicia sativa) is an important forage and green manure crop that is widely cultivated around the world. However, the large number of subspecies and accessions of common vetch has made taxonomic research on this species difficult. Pollen morphology data can provide important evidence in the study of plant phylogeny. Therefore, in this research, light microscopy and scanning electron microscopy were used to observe seven morphological traits of pollens from 22 common vetch accessions, and residual maximum likelihood and pattern analysis was conducted. The results showed that the pollen grains of the 22 accessions were all monad pollen and the polar view revealed three-lobed circular and triangular shapes, while the equatorial view mainly revealed an oblate shape; only one accession showed an oblate spherical shape. All accessions were 3-zonocolporate and the colpus length extended close to the poles. The polar axis length was (19.39 ± 0.97)–(42.12 ± 0.76) μm and the equatorial axis length was (35.97 ± 1.27)–(45.25 ± 0.81) μm. We found that qualitative traits of pollen shape, aperture polar view and ornamentation were highly stable. Among them, polar axis length, equatorial axis length and colpus length and width had significant differences among the accessions. The ratios of the equatorial and polar axes had significant differences among the subspecies. This trait information could be used for the classification and identification of common vetch accessions and subspecies.

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Modern pollen rain from Udhampur (Jammu and Kashmir), India: insights into pollen production, dispersal, transport and preservation

Cited by 20 publications

References 68 publications

Palyno‐morphological investigations of halophytic taxa of Amaranthaceae through SEM from Salt range of Northern Punjab, Pakistan

Palyno‐morphological investigations of halophytic taxa of Amaranthaceae through SEM from Salt range of Northern Punjab, Pakistan

Identification of monocot flora using pollen features through scanning electron microscopy

Scanning electron microscopy observations of pollen morphology in common vetch (Vicia sativa) subspecies

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