Pollen morphology of the tribe Pterostegieae (Polygonaceae: Eriogonoideae)

Hong, Suk‐Pyo; Oh, Il-Chan; Son, Se‐hee

doi:10.1080/00173139809362634

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…The results obtained for the pollen grains of Polygonaceae species showed similarities and dissimilarities with the previous reports. Hong et al (1998) studied 30 taxa of Polygonella and Polygonum and observed pollens prolate to spheroidal. Yang et al (2001) analyzed 40 species of Rheum of family Polygonaceae in which R. australe and R. webbianum had sub-spheroidal pollen.…”

Section: Discussion Discussion Discussionmentioning

confidence: 99%

Palynological diversity of highly medicinal rare, endangered, and threatened plants from Western Himalaya, India

Kumar

Singh

Kumar

et al. 2022

Not Bot Horti Agrobo

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The present study investigated the palynological diversity of highly medicinal Rare, Endangered, and Threatened (RET) plant species dwelling in higher altitudes of Western Himalaya, India. The pollen morphology of 32 plant species covering 29 genera, 23 families, and 18 orders of Angiosperms was analyzed by Light Microscopy (LM) and Scanning Electron Microscopy (SEM). The families of the studied plant species have been arranged and discussed following the evolutionary sequence as per the updated version of Angiosperm Phylogeny Group ІV. The studied pollen characters were found to be helpful in the delimitation of taxa at the species level. In the studied monocots, the species belonging to order Zingiberales, Asparagales, and Liliales followed the general trend of having primitive inaperturate to advance monosulcate pollen except for Alismatales which had inaperturate pollen and placed after the orders mentioned above in the APG ІV classification system. The pollen aperture of the eudicot group in the present study followed the evolutionary pattern from tricolpate to tricolporate and triporate, which corroborated previous reports. All the investigated species of both monocot and eudicot groups had monad pollen units suggesting their primitiveness on the evolutionary scale except for the Rhododendron companulatum (Ericales), having evolutionarily advanced tetrad arrangement. The current study found primitive exine ornamentation in Ranunculales to advance in Asterales, Lamiales, Gentianales, and Boraginales and confirms the results of the previous studies. The data on the pollen morphological features of the studied species generated in the present study will help understand these important high-altitude plant species' reproductive biology and conservation aspects.

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Section: Discussion Discussion Discussionmentioning

confidence: 99%