The Lichen Genus Parmotrema in South Korea

Abstract

Parmotrema A. Massal. is a common lichen genus scattered throughout the Korean Peninsula; however, no detailed taxonomic or revisionary study of this genus has been conducted for nearly two decades. Therefore, this study revised the taxonomy of this genus based on specimens deposited in the lichen herbarium at the Korean Lichen Research Institute and samples wereidentified using recent literature. In this revisionary study, a total of eighteen species of Parmotrema including eight new records [Parmotrema cetratum (Ach.) Hale, Parmotrema cristiferum (Taylor) Hale, Parmotrema grayanum (Hue) Hale, Parmotrema defectum (Hale) Hale, Parmotrema dilatatum (Vain.) Hale, Parmotrema margaritatum (Hue) Hale, Parmotrema pseudocrinitum (Abbayes) Hale, and Parmotrema subsumptum (Nyl.) Hale] are documented. Detailed descriptions of each species with their morphological, anatomical and chemical characteristics are also given and a key to the known Parmotrema species of the Korean Peninsula is presented.

New meta -depsidones and diphenyl ethers from the lichen Parmotrema tsavoense (Krog & Swinscow) Krog & Swinscow, Parmeliaceae

“…This aldehydic substituent was replaced by a hydroxyl group which was supported by HR-ESI-MS analysis of 2 having one carbon less than that of 1. Comparing to 1, the oxygenated carbon C-3 of 2 was strongly deshielded [δ C 132.4 (2) vs. 111.6 (1)] and its two adjacent carbons were shielded [C-2/C-4: 150.7/150.7 (2) vs. 161.9/164.1 (1)]. It was further confirmed by the HMBC correlations ( Fig.…”

“…These compounds have attracted much attention in investigations because of their antibiotic and antitumor properties… 1 Parmotrema, one of the largest genera of parmelioid core in the family Parmeliaceae, is a genus of c. 350 species which has a widespread distribution in the world, especially in tropical regions. 2 Lichens in tropical Vietnamese habitats have not been well studied chemically. In the course of our systematic research on lichen substances from the Vietnamese flora, we have examined Parmotrema tsavoense (Krog & Swinscow) Krog & Swinscow, which is widely distributed in the southern part of the central of Vietnam and has not yet been chemically and biologically studied.…”

Effect of UV‐B radiation on the content of UV‐B absorbing compounds and photosynthetic parameters in Parmotrema austrosinense from two contrasting habitats

“…The species is reported (Jayalal et al . ) to have several secondary metabolites: upper cortex with atranorin and chloroatranorin; medulla with lecanoric acid (http://lichenportal.org/).…”

“…Jayalal et al . ; Perez & Guzmán ). In Argentina, lichens of the genus Parmotrema are quite frequent also in mountainous (Estrabou ) and central parts of Argentina (Rodriguez et al .…”

Antifungal activity of <i>Parmotrema tinctorum</i> (Delise ex Nyl.) hale and <i>Parmotrema cristiferum</i> (Taylor) hale against seed mycoflora - A comparative study

“…The genus name Parmotrema literally means perforate apothecia (Greek parmos -cup; tremaperforation). It belongs to the family Parmeliaceae and the species are characterized by large foliose thalli with broad lobes (Divakar and Upreti, 2005;Jayalal et al, 2013;Michlig et al, 2014;Vivek et al, 2014). In the present study, we evaluated antifungal activity of two Parmotrema species viz.…”