Pollen morphology of Polygonatae and its systematic significance

Wang, Liu; Gu, Lei; Zhao, Chun-Hai; Liu, Jiaxi

doi:10.1080/01916122.2017.1339217

Cited by 11 publications

(15 citation statements)

References 22 publications

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“…Additionally, the P. odoratum pollen shape was observed under LM and SEM in the previous studies and it has been reported that pollen was long elliptic which is acute at the end, the exine ornamentation was observed as regulate‐perforate (Wang et al, 2018). Interestingly our current study has similar finding as reported in previous investigations perforate (Wang et al, 2018).…”

Section: Resultsmentioning

confidence: 93%

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Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Ali

Liu

Xia

et al. 2021

Microscopy Res & Technique

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Although considerable progress has recently been made in the taxonomic study of Asparagaceae, but the Polygonatum remains one of the most poorly investigated genus. Therefore, the present study was designed with the aim, to document the pollen micromorphology of closely related Polygonatum taxa and its taxonomic significance. Pollen micro‐morphological features were observed using scanning electron microscopy—SEM). The pollen grains are monad, navicular, monocolpate, and radially symmetrical. A significant variation was observed in the exine sculpturing. Moreover, most of the Polygonatum taxa have perforate pollen while some of them were mixed with psilate to perforate, perforate to microreticulate, sometimes scabrate, gemmate with baculate. Hence, this study documented the pollen morphology of Polygonatum taxa and strengthens the taxonomic identification of the genus Polygonatum based on pollen characters, which helps and can be used as an additional tool for the correct identification and discrimination of the species of Polygonatum at generic and species level.

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Section: Resultsmentioning

confidence: 93%

“…Therefore, they have taxonomic significance. They described that pollen micromorphology is an essential tool to identify the closely related species of Polygonatum correctly (Wang, Gu, Zhao, & Liu, 2018).…”

Section: Introductionmentioning

confidence: 99%

Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Ali

Liu

Xia

et al. 2021

Microscopy Res & Technique

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“…The prolate-spheroidal shape of the pollen grain is found in S. indica, but in S. declinata pollen grains are sub-prolate and in S. thaipingensis the shape varies from prolate to prolate spheroidal. It was reported that P/E values and morphological features in polar view are relatively stable in each group in polygonate [24]. Pollen grains of different samples collected from different localities of Saraca also showed relative stability of P/E ratio but morphological features obtained from polar view varies considerably.…”

Section: Discussionmentioning

confidence: 93%

Pollen Morphology of Indian Species of Saraca L. (Leguminosae)-A Threatened and Legendary Medicinal Tree

Sil¹,

Mallick²,

Pal³

et al. 2019

Phyton

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The genus Saraca L. (Leguminosae) is a universal panacea in herbal medicine. The present study investigates the comparative pollen morphology of four species of Saraca viz. S. asoca (Roxb.) de Wilde, S. declinata (Jack) Miq., S. indica L., and S. thaipingensis Cantley ex Prain growing in India to reveal differences of their pollen structures to aid taxonomic and evolutionary values. The detailed morphology and surface structure of pollen grains were studied and described using light microscopy and scanning electron microscopy. The pollen grains of Saraca showed isopolar, para-syncolporate, tricolporate, with radially symmetric, prolate and prolate-spheroidal structure. The surface of pollen of S. indica is rugulate with large lirae but in S. declinata, the surface is micro-rugulate to vermiculate with relatively thin lirae and that of S. thaipingensis is indistinct as the psilate surface with a frequent protuberance and fewer perforations were observed along with the gemmae like structure. Exine ornamentation helped to separate S. indica and S. asoca. Exine thickness varies from 3-4 μm. Presence of protuberance and exine thickness varies among individuals of the species spread over different locations. Present work also provides a unique palynological identity and interrelationship of these four species based on cluster analysis taking 23 pollen characters with the help of statistical method like the plotting of ternary graph. Ternary plots also helped to calculate the level of plasticity of each character in the intra-and inter-specific level.

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“…The pollen morphological characteristics provide an important basis for phylogenetic relationships and taxonomy of plants (Du, Zhao, & Liu, ; Gul et al, ; Liu, Zhao, Liu, Xi, & Zhang, ; Ullah et al, ; L. Wang, Gu, Zhao, & Liu, ). The pollen morphological features of Caryophyllaceae, for example, the pores number, microechini density, and surface ornamentation have been generally used in different classification levels, such as intergeneric, intrageneric, interspecific, and intraspecies levels (Aktaş, Altan, Ozdemir, Baran, & Garnatje, ; Ataşlar, Potoglu Erkara, & Tokur, ; Barkoudah, ; Chanda, ; Cui, Wang, Gu, & Liu, ; Erdtman, ; Iwarsson, ; Kızılpınar, Özüdoğru, Özmen, Erik, & Doğan, ; Mačukanović‐Jocić, Jarić, & Mladenović, ; McNeill & Basset, ; Nejad Falatoury, Assadi, & Ghahremaninejad, ; Nejad Falatoury, Ghahremaninejad, & Assadi, ; Parent & Richard, ; Perveen & Qaiser, ; Skvarla & Nowicke, ; Yıldız, ).…”

Section: Introductionmentioning

confidence: 99%

Pollen morphology of Chinese Pseudostellaria (Caryophyllaceae) and its systematic significance

Cui

Ren

et al. 2020

Microscopy Res & Technique

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Using light and scanning electron microscopy, we studied the pollen morphology of six species (one of which are endemic) of Chinese Pseudostellaria. All species were studied for the first time. Results of this study indicated that pollen grains of Pseudostellaria are spheroidal or spheroidal-polyhedral in shape and small or medium in size and pantoporate. Each pollen grain has 12-16 round pores. These pores are apart from each other by 5.77-7.73 μm and each has 7-13 granules in the operculum region. These features have important taxonomic significance. In addition, their pollen grains have thin exine with microechinate-punctate-perforate surface ornamentation. Pollen features do not support the traditional infrageneric classification of Pseudostellaria into two sections, but support that Pseudostellaria is closely related to other species of the Odontostemma clade. K E Y W O R D S palynological, pollen morphology, Pseudostellaria, systematics

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Pollen morphology of Polygonatae and its systematic significance

Cited by 11 publications

References 22 publications

Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Pollen Morphology of Indian Species of Saraca L. (Leguminosae)-A Threatened and Legendary Medicinal Tree

Pollen morphology of Chinese Pseudostellaria (Caryophyllaceae) and its systematic significance

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