Results 11 to 20 of about 366 (153)

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

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

Phylogenetic Relatedness Determines Heterospecific Pollen-Pistil Compatibility and Reproductive Outcome in the Apocarpous Species <i>Sagittaria trifolia</i> (Alismataceae). [PDF]

Ecol Evol
This study investigates heterospecific pollen (HP) effects in Sagittaria trifolia, an apocarpous plant with an extragynoecial compitum. HP–pistil compatibility and resulting seed set reduction were greatest from phylogenetically close donors, not influenced by origin or pollen traits.
Zou SY, Lyu ST, Yu T, Zhang TY, Zan X, Wang XF.   +5 more
europepmc   +2 more sources

Elucidating the enzyme network driving Amaryllidaceae alkaloids biosynthesis in Leucojum aestivum. [PDF]

Plant Biotechnol J
Schematic representation of Amaryllidaceae alkaloid biosynthesis in Leucojum aestivum. Norbelladine synthase (LaNBS) and noroxomaritidine/norcraugsodine reductase (LaNRII) catalyze the condensation of tyramine and 3,4‐dihydroxybenzaldehyde to form norbelladine, which is subsequently O‐methylated by norbelladine‐4′‐O‐methyltransferase (LaN4′OMT ...
Lamichhane B, Gélinas SE, Merindol N, Koirala M, Dos Santos KCG, Germain H, Desgagné-Penix I.   +6 more
europepmc   +2 more sources

Methyl Jasmonate Elicitation for In Vitro Lycorine Accumulation in Three Zephyranthes Species and Comparative Analysis of Tissue-Cultured and Field Grown Plants

Horticulturae, 2023
Lycorine is an important Amaryllidaceae alkaloid showing anti-cancerous activity on numerous cell lines; and it also demonstrates antiviral activity against several viruses including SARS-CoV-2 responsible for COVID-19.
Rukaya Syeed, Abdul Mujib, Yaser Hassan Dewir, Moien Qadir Malik, Yashika Bansal, Bushra Ejaz, Jyoti Mamgain, Mansor Hakiman, Ali Alsughayyir   +8 more
doaj   +1 more source

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   +5 more sources

Anticoronavirus Isoquinoline Alkaloids: Unraveling the Secrets of Their Structure-Activity Relationship. [PDF]

Influenza Other Respir Viruses
ABSTRACT Background Natural alkaloids are a structurally diverse class of bioactive compounds with significant therapeutic potential. This study aimed to evaluate the in vitro antiviral activity of various natural alkaloids against coronaviruses, clarify molecular effects via bioassays and docking, and explore structure–activity relationships.
Safratova M, Chen YL, Hostalkova A, Chlebek J, Hsieh CF, Chen BH, Cahlikova L, Kosturko S, Backlund A, Horng JT, Hwang TL, Korinek M.   +11 more
europepmc   +2 more sources

A review on the chemical and biological properties of the Amaryllidaceae alkaloid, narciprimine (1968-2020) [PDF]

Journal of Advanced Biomedical and Pharmaceutical Sciences, 2021
Amaryllidaceae occupies a prominent position among the most important alkaloid-rich plant families in the globe. Plants of this family show an exceptional ability to produce a myriad of structurally diverse alkaloids with noteworthy pharmacological and ...
samar desouky, John Fahim, Yostina Boshra   +2 more
doaj   +1 more source

Rainlily, Zephyranthes and Habranthus spp.: Low Maintenance Flowering Bulbs for Florida Gardens

EDIS, 2010
ENH1151, a 12-page illustrated fact sheet by Gary W. Knox, describes these small flowing bulbs that flower within a few days after a rainfall — where to plant them, how to care for them, how to propagate them, and common species and selections.
Gary W. Knox
doaj   +5 more sources