Results 21 to 30 of about 742 (186)

Caracterization of seed germination of Zephyranthes sylvatica (Mart.) Baker (Amarilidacea) [PDF]

Journal of Seed Science, 2014
Zephyranthes sylvatica is a beautiful lily, endemic from the Brazilian Caatinga. Although it has a great ornamental potential, little is known about this species, especially regarding its seeds germination process.
Mayara Wesley da Silva, Laise Guerra Barbosa, José Eduardo Santos Barboza da Silva, Keylan Silva Guirra, Diego Rangel da Silva Gama, Gilmara Moreira de Oliveira, Bárbara França Dantas   +6 more
doaj   +3 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

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

Karakterisasi Morfologi dan Hibridisasi Rain Lily (Zephyranthes sp.) [PDF]

, 2022
Rain lily (Zephyranthes sp) merupakan tanaman hias yang umumnya dibudidayakan sebagai tanaman hias pot dan lanskap. Warna dan bentuk serta ukuran tanaman hias ini masih terbatas.
Ridho Kurniati, Fibrianty, Eka
core   +1 more source

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

ERK Inhibition Promotes Engraftment of Allografts by Reprogramming T‐Cell Metabolism

Advanced Science, Volume 10, Issue 16, June 2, 2023., 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.
Xiaosheng Tan, Changxing Qi, Xiangli Zhao, Lingjuan Sun, Mi Wu, Weiguang Sun, Lianghu Gu, Fengqing Wang, Hao Feng, Xia Huang, Bin Xie, Zhengyi Shi, Peiling Xie, Meng Wu, Yonghui Zhang, Gang Chen   +15 more
wiley   +1 more source

Potential Therapeutic Applications of Plant‐Derived Alkaloids against Inflammatory and Neurodegenerative Diseases

Evidence-Based Complementary and Alternative Medicine, Volume 2022, Issue 1, 2022., 2022
Alkaloids are a type of natural compound possessing different pharmacological activities. Natural products, including alkaloids, which originate from plants, have emerged as potential protective agents against neurodegenerative disorders (NDDs) and chronic inflammations. A wide array of prescription drugs are used against these conditions, however, not
Babita Aryal, Bimal Kumar Raut, Salyan Bhattarai, Sobika Bhandari, Parbati Tandan, Kabita Gyawali, Kabita Sharma, Deepa Ranabhat, Ranjita Thapa, Dipa Aryal, Atul Ojha, Hari Prasad Devkota, Niranjan Parajuli, Weidong Pan   +13 more
wiley   +1 more source

Stress Response and Nutrient Homeostasis in Lettuce (Lactuca sativa) Exposed to Graphene Quantum Dots Are Modulated by Particle Surface Functionalization

Advanced Biology, Volume 5, Issue 4, April 2021., 2021
Graphene quantum dots (GQDs) induce antioxidative damage, alteration of phytohormone levels and mineral homeostasis, which eventually cause impaired photosynthesis and plant growth. Surface functionalization determines the reactive oxygen species generation and antioxidants oxidation capacity, which leads to different phytotoxicity of GQDs.
Peng Zhang, Xinyue Wu, Zhiling Guo, Xiaonan Yang, Xiangang Hu, Iseult Lynch   +5 more
wiley   +1 more source

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

Generation of Oxidoreductases with Dual Alcohol Dehydrogenase and Amine Dehydrogenase Activity

Chemistry – A European Journal, Volume 27, Issue 10, Page 3315-3325, February 15, 2021., 2021
Lend me your hydrogen: Starting from an ϵ‐deaminating l‐lysine dehydrogenase, we created new variants that perform the reduction of aldehydes to alcohols and the reductive amination of aldehydes and ketones to amines. The reductive amination of ketones proceeded with excellent stereoselectivity.
Vasilis Tseliou, Don Schilder, Marcelo F. Masman, Tanja Knaus, Francesco G. Mutti   +4 more
wiley   +1 more source