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Lygodium

About: Lygodium is a research topic. Over the lifetime, 89 publications have been published within this topic receiving 1408 citations. The topic is also known as: Hagnaya.


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Journal ArticleDOI
TL;DR: In its native Japan Neomusotima fuscolinealis Yoshiyasu feeds on and damages the leaves of Lygodium japonicum (Thunberg ex Murray) Swartz, an invasive weed in Florida and the southeastern U.S.
Abstract: In its native Japan Neomusotima fuscolinealis Yoshiyasu feeds on and damages the leaves of Lygodium japonicum (Thunberg ex Murray) Swartz, an invasive weed in Florida and the southeastern U.S. Larvae and pupae of the moth were imported into the quarantine facility at the Florida Biological Control Laboratory, Gainesville, Florida, to establish a colony for preliminary host range studies and to define its lifecycle and reproduction parameters. Larvae of the moth did not feed significantly nor develop on 5 tested rare, native Florida ferns. The rare North American native climbing fern, Lygodium palmatum (Bernhardi) Swartz, however, supported complete development of N. fuscolinealis, and 6 continuous generations of the moth were reared on the fern. Because the rare L. palmatum and the invasive L. japonicum co-occur in the US, the release of N. fuscolinealis could result in the harm to L. palmatum, a risk that makes the moth unsuitable as a potential biological control of L. japonicum.

6 citations

Journal Article
TL;DR: Column chromatographic techniques were used for isolation and purification of chemical constituents of Lygodium japonicum and their structures were identified by spectroscopic analysis.
Abstract: OBJECTIVE To study the chemical constituents of Lygodium japonicum. METHOD Column chromatographic techniques were used for isolation and purification of chemical constituents of this plant and their structures were identified by spectroscopic analysis. RESULT Eight compounds were isolated and identified as tilianin (I), kaempferol-7-O-alpha-L-rhamnopyranoside (II), kaempferol (III), p-coumaric acid (IV), hexadecanoic acid 2, 3-dihydroxy-propyl ester (V), daucosterol (VI), beta-sitosterol (VII, and 1-hentriacontanol (VIII) respectively. CONCLUSION Compounds I, II, V, VI, VII, VIII were isolated from L. japonicum for the first time, compounds I, II, V were isolated from genus Lygodium for the first time.

6 citations

Journal ArticleDOI
TL;DR: Lygodium hazaricum a climbing fern was collected from Nandiar valley western Himalayas during 2016 and is a new contribution to the fern flora of Pakistan.
Abstract: Lygodium hazaricum a climbing fern was collected from Nandiar valley western Himalayas during 2016. The rhizome is widely creeping, dichotomously branched and densely clothed with dark brown hairs. The epidermal layer of rhizome is covered with dark brown hairs, which is sheeting at base and acute at tip. Roots arise opposite to fronds and root branches are bulbous. Rachis is with solid oval protostele. The cells of phloem are smaller than xylem cells. The sporangia are 600 μm long and 500 μm wide, globular in cross section. Sporangium is very short stalked and placed horizontally. The mature sporangium has upto 256 spores. Spores are subtriangular. Sporangium also contains few red spores. L. hazaricum is used for the treatment of diarrhea, dysentery and hepatitis. It is a new contribution to the fern flora of Pakistan.

5 citations

Journal ArticleDOI
TL;DR: A molecular phylogenetic analysis using nuclear large subunit ribosomal DNA sequence revealed that the Lygodium rust fungus was grouped in a paraphyletic Milesina clade.
Abstract: A new rust fungus was found on Lygodium flexuosum at Doi Suthep-Pui National Park in Chiang Mai Province, Thailand. Puccinia lygodii was the only rust fungus currently known on Lygodium spp. (Lygodioideae, Schizaeaceae, Schizaeales) from southern North America through northern South America. The new fungus produced uredinia linearly between veins, causing yellowish streaks, on the abaxial frond surface. The sori were covered with a layer of thin-walled fungal cells beneath the host epidermis and surrounded by thin-walled paraphyses. The sori did not have a distinct central aperture with ostiolar cells but ruptured irregularly to release urediniospores. Urediniospores were obovoid, obovoid-ellipsoid, or pyriform. The wall was thin, colorless, and completely echinulate. Neither amphispores nor teliospores were observed. The sorus and spore morphology indicated the taxonomic affinity of the fungus to the fern rust genera Hyalopsora and Milesina. A molecular phylogenetic analysis using nuclear large subunit ribosomal DNA sequence revealed that the Lygodium rust fungus was grouped in a paraphyletic Milesina clade. From the putative host preference, morphology, and estimated phylogenetic relationships, it was concluded that the fungus was a new species of Milesina.

5 citations

Journal ArticleDOI
TL;DR: In this article, a new record of Lygodium based on a well-preserved fertile pinnule from the middle Miocene Zhangpu biota is described, which is the first record of a fertile frond in China.

5 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20221
20213
20202
20193
20182
20174