Results 1 to 10 of about 248 (94)

Histological Diagnosis and Recovery Regulation of Gametophyte Developmental Disorders During In Vitro Propagation of the Medicinal Fern Cibotium barometz [PDF]

open access: yesPlants
Cibotium barometz (L.) J.Sm., a medicinal fern, relies on three interconnected processes for in vitro propagation: spore germination, ordered gametophyte development, and successful initiation and early establishment of the sporophyte generation. However,
Wumei Si   +6 more
doaj   +2 more sources

Three new sorediate species of Lecanora sensu lato (Ascomycota, Lecanoraceae) from Anhui Province, China [PDF]

open access: yesMycoKeys
In this study, three new sorediate species, Lecanora apicifarinacea Y. S. Feng & Y. Y. Zhang, L. pseudolayana Y. S. Feng & Y. Y. Zhang and Verseghya megasorediata Y. S. Feng & Y. Y.
Yi-Shan Feng, Li-Juan Li, Yan-Yun Zhang
doaj   +4 more sources

Quantitative live-imaging reveals the dynamics of apical cells during gametophyte development in ferns [PDF]

open access: yesQuantitative Plant Biology, 2022
Meristems in land plants share conserved functions but develop highly variable structures. Meristems in seed-free plants, including ferns, usually contain one or a few pyramid-/wedge-shaped apical cells (ACs) as initials, which are lacking in seed plants.
Xiao Wu   +4 more
doaj   +2 more sources

The development of gametophytes and oogenesis in the fern Pronephrium penangianum

open access: yes上海师范大学学报. 自然科学版, 2022
The development of gametophytes and oogenesis in the fern Pronephrium penangianum were investigated using microscopy technology. The results showed that the spores of P. penangianum were brown and dihedral and its spores germinated about 12 d after sowed.
GONG Xueyu   +4 more
doaj   +1 more source

Morphogenesis of the gametophyte of Physematium montevidensis (Woodsiaceae)

open access: yesRodriguésia, 2023
In vitro spore culture and gametophyte characteristics may contribute understanding the life cycle in different fern taxa and also to systematic and taxonomic studies. The family Woodsiaceae contains two genera: Physematium and Woodsia.
María Luz Martinenco   +2 more
doaj   +1 more source

Huperzine A and Huperzine B Production by Prothallus Cultures of Huperzia selago (L.) Bernh. ex Schrank et Mart

open access: yesMolecules, 2020
This is the first report of an efficient and effective procedure to optimize the biosynthesis of huperzine A (HupA) and huperzine B (HupB) in vitro from Huperzia selago gametophytes. Axenic tissue cultures were established using spores collected from the
Wojciech J. Szypuła   +3 more
doaj   +1 more source

Life history of an endemic and threatened species: Pteris congesta

open access: yesRodriguésia, 2023
Pteris congesta an endemic and endangered species was investigated to identify morphological differences between its sterile and fertile leaves. Our findings have unveiled, leaf dimorphism in both morphology and growth patterns between fertile and ...
Luiza Mendonça Bastos   +4 more
doaj   +1 more source

Nanoceria and bulk cerium oxide effects on the germination of asplenium adiantum-nigrum spores

open access: yesForest Systems, 2016
Aim of study: The effect of cerium oxide engineered nanoparticles on the spore germination of the fern. Asplenium adiantum-nigrum. Area of study: France, Britanny Region, Finistére Department, Plougonvelin, in rocks near the sea.
Aranzazu Gomez-Garay   +5 more
doaj   +1 more source

A New Lichen-Forming Fungus, Aspicilia humida, from a Forested Wetland in South Korea, with a Taxonomic Key for Aspicilioid Species of Korea

open access: yesMycobiology, 2022
Aspicilia humida Lee is described as a new lichen-forming fungus from a wetland forest, South Korea. The new species is distinguishable from Aspicilia aquatica (Fr.) Körb., the most similar species, by the absence of prothallus, black disk without green ...
Beeyoung Gun Lee   +2 more
doaj   +1 more source

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