Results 11 to 20 of about 654 (167)

Flavonoids and alkaloids from the rhizomes of Zephyranthes ajax Hort. and their cytotoxicity [PDF]

Scientific Reports, 2020
A new flavanol derivative, (2R,3R)-3-acetoxy-7-hydroxy-3′,4′-methylenedioxyflavan (1), was co-isolated from the rhizomes of Zephyranthes ajax Hort. with the following seven known compounds: 7-hydroxyflavan (2), 7,4′-dihydroxyflavan (3), 7,4′-dihydroxy-8 ...
Khan Viet Nguyen, Duc Viet Ho, Nhan Trong Le, Kiem Van Phan, Jyrki Heinämäki, Ain Raal, Hoai Thi Nguyen   +6 more
doaj   +2 more sources

Historia taxonómica de Zephyranthes bifida (Neorhodophiala, Amaryllidaceae)

Boletín de la Sociedad Argentina de Botánica, 2023
Introducción y objetivos: Zephyranthes bifida (Amaryllidaceae) fue incluida recientemente como única especie polimórfica del subgénero Neorhodophiala. Su historia taxonómica no ha sido reseñada, pudiendo tratarse de un aporte valioso para dilucidar el ...
Juan Manuel Goyenetche, Rosa Lourdes Scaramuzzino, Silvia Arroyo-Leuenberger   +2 more
doaj   +6 more sources

Megagametophyte Differentiation in Zephyranthes drummondii D. Don and Zephyranthes chlorosolen (Herb.) D. Dietr. (Amaryllidaceae)

Caryologia, 2019
Megagametophyte differentiation was examined in cleared ovules from emergent buds and open flowers of Zephyranthes drummondii D. Don and Z. chlorosolen (Herb.) D.
Charles F. Crane
doaj   +2 more sources

Sclerotinia rot of Zephyranthes candida caused by Sclerotinia sclerotiorum and Sclerotinia minor [PDF]

Frontiers in Microbiology
Sclerotinia rot is a serious disease that occurs on Zephyranthes candida. A thorough understanding of the pathogenic fungal species and understanding the biological characteristics are important for controlling sclerotinia.
Fuqiang Yin, Fuqiang Yin, Zhen Song, Lu Liu, Qin Xu, Jiamin Jiang, Zhien Xiao, Tiantian Guo, Yuxin Liu, Shaotian Zhang, Yue Yuan, Wanli Ma, Ming Liu, Ming Liu   +13 more
doaj   +2 more sources

Influence of Sucrose and Activated Charcoal on Phytochemistry and Vegetative Growth in Zephyranthes irwiniana (Ravenna) Nic. García (Amaryllidaceae) [PDF]

Plants
Zephyranthes irwiniana (Ravenna) Nic. García is an endemic, red list threatened species from the Brazilian savanna (Cerrado) with pharmacological potential to treat the symptoms of Alzheimer’s Disease (AD).
Bertholdo Dewes Neto, Kicia Karinne Pereira Gomes-Copeland, Dâmaris Silveira, Sueli Maria Gomes, Julia Marina Muller Craesmeyer, Daniela Aparecida de Castro Nizio, Christopher William Fagg   +6 more
doaj   +2 more sources

Undescribed Amaryllidaceae Alkaloids from Zephyranthes citrina and Their Cytotoxicity. [PDF]

J Nat Prod
This phytochemical study presents the isolation of eight alkaloids from Zephyranthes citrina Baker. The structures of the new alkaloids, zephycitrine (1) and 6-oxonarcissidine (2), were established by analysis of spectroscopic and spectrometric data. Processing the EtOH extract under acid-base conditions yielded the unreported isolation artifacts 3 and
Křoustková J, Kohelová E, Muthná D, Kuneš J, Havelek R, Vrabec R, Malaník M, Suchánková D, Chlebek J, Jenčo J, Kosturko Š, Cahlíková L.   +11 more
europepmc   +3 more sources

Green Synthesis of Nano‐Sized Metal Oxides (Ag2O, CuO, ZnO, MgO, CaO, and TiO2) Using Plant Extract for a Sustainable Environment

Nano Select
The demand for green synthesis of metal oxide nanomaterials is increasing tremendously to achieve sustainable development goals and for a clean environment. Simultaneously, metal oxides hold significant importance across various fields, such as catalysis,
Sanjana Afrin Disha, Md. Sahadat Hossain, Md. Lawshan Habib, Samina Ahmed   +3 more
doaj   +2 more sources

Phytochemistry and Pharmacology of Genus Zephyranthes

Medicinal & Aromatic Plants, 2015
The genus Zephyranthes belongs to family Amaryllidaceae, well known for its ornamental and medicinal values. The species of this genus are bulbous perennials having attractive flowers that generally bloom after heavy rains. The genus had been used traditionally by inhabitants of different countries like India, Peru, China and Africa for various ...
Katoch D Singh B
openalex   +2 more sources

The origin and diversification of Amaryllidaceae: A phylogenetic and biogeographic analysis. [PDF]

Am J Bot
Abstract Premise Previous angiosperm‐wide studies estimated that the geophytic family Amaryllidaceae diverged in Africa 87.00–46.77 million years ago (mya), spanning the Cretaceous and Palaeogene periods, including multiple important climatic and geological events.
Dennehy-Carr ZH, Könyves K, Yesson C, David JC, Culham A.   +4 more
europepmc   +2 more sources

ERK Inhibition Promotes Engraftment of Allografts by Reprogramming T-Cell Metabolism. [PDF]

Adv Sci (Weinh), 2023
Extracellular regulated protein kinases (ERK) pathway is highly activated in graft‐infiltrating T cells. Lycorine, an amaryllidaceae alkaloid extracted from the traditional Chinese medicine Zephyranthes candida, presents to be a novel ERK‐specific inhibitor and prolongs engraftment of allografts.
Tan X, Qi C, Zhao X, Sun L, Wu M, Sun W, Gu L, Wang F, Feng H, Huang X, Xie B, Shi Z, Xie P, Wu M, Zhang Y, Chen G.   +15 more
europepmc   +2 more sources