Results 71 to 80 of about 22,795 (293)

Antibacterial Effect of Aqueous and Alcoholic Extracts from Petal of Saffron (Crocus sativus L.) on some Foodborne Bacterial Pathogens

Journal of Medicinal Plants, 2012
Background: Health concerns due to adverse effects of chemical preservatives have increased public interest to consuming preservative-free products or product containing natural preservatives such as plant extract and their essential oils.
H Gandomi Nasrabadi, L Azami Sarokelaei, A Misaghi, S Abbaszadeh, N Shariatifar, N Tayyar Hashtjin   +5 more
doaj  

A petal breakstrength meter for Arabidopsis abscission studies

Plant Methods, 2006
Background Abscission is the regulated dropping of plant organs, such as leaves or flower petals. This process involves a break down of the cell wall between layers of cells in the abscission zone, causing the organ to become detached.
Walker John C, Cho Sung Ki, Lease Kevin A   +2 more
doaj   +1 more source

Programmable and Reversible 3D‐to‐3D Shape Transformation: Hierarchical Multimodal Morphing Based on Liquid Crystal Elastomers

Advanced Science, EarlyView.
Hierarchical multimodal 3D‐to‐3D shape morphing is achieved in liquid crystal elastomer‐elastomer bilayers via programmable mismatch strains. Combining pre‐stretch and thermal actuation enables reversible transformations with non‐zero Gaussian curvature, empowering over 30 complex configurations for biomimetic camouflage, adaptive robotics, and dynamic
Jiayu Tian, Chuanqian Shi, Guohua Nie, Chenzhe Li, Ying Zhao   +4 more
wiley   +1 more source

Anti-tumor and cytotoxic evaluation of Crocus sativus L. stigma and petal extracts using brine shrimp and potato disc assays

Journal of Medicinal Plants, 2005
Background: A growing body of research has confirmed that saffron stigma extract and its main constituents have anticancer properties. Objective: The aim of the present study was to evaluate the possible cytotoxic and anti-tumor activities of the ...
H Hosseinzadeh, J Behravan, M Ramezani, Kh Ajgan   +3 more
doaj  

The Molecular Mechanism of Interaction Between SEPALLATA3 and APETALA1 in Arabidopsis thaliana

Plant Direct
Flower formation has been a primary focus in botanical research, leading to the identification of multiple factors regulating flowering over the past 30 years.
Xiao‐Min Tan, Ya‐Ru Li, Man‐Ru Song, Ling‐Na Yuan, Zi‐Xin Zhao, Ye Liu, Qi Meng, Xuan Huang, Ye‐Ye Ma, Zi‐Qin Xu   +9 more
doaj   +1 more source

Light induces petal color change in Quisqualis indica (Combretaceae)

Plant Diversity, 2018
Petal color change, a common phenomenon in angiosperms, is induced by various environmental and endogenous factors. Interestingly, this phenomenon is important for attracting pollinators and further reproductive success.
Juan Yan, Menglin Wang, Ling Zhang
doaj   +1 more source

Understanding the petal effect: Wetting properties and surface structure of natural rose petals and rose petal-derived surfaces

Colloids and Surfaces B: Biointerfaces
The petal effect is identified as a non-wetting state with high drop adhesion. The wetting behavior of petal surfaces is attributed to the papillose structure of their epidermis, which leads to a Cassie-Baxter regime combined with strong pinning sites. Under this scenario, sessile drops are pearl shaped and, unlike lotus-like surfaces, firmly attached ...
Sergio Parra-Vicente, Pablo F. Ibáñez-Ibáñez, Miguel Cabrerizo-Vílchez, Isabel Sánchez-Almazo, Miguel Ángel Rodríguez-Valverde, Francisco Javier Montes Ruiz-Cabello   +5 more
openaire   +3 more sources

Origin and evolution of petals in angiosperms

Plant Ecology and Evolution, 2013
Background and aims – The term ‘petal’ is loosely applied to a variety of showy non-homologous structures, generally situated in the second whorl of a differentiated perianth. Petaloid organs are extremely diverse throughout angiosperms with repeated derivations of petals, either by differentiation of a perianth, or derived from staminodes.
Ronse De Craene, Louis, Brockington, Samuel   +1 more
openaire   +2 more sources

Facile Single‐Nanocomposite 4D Bioprinting of Dynamic Hydrogel Constructs with Thickness‐Controlled Gradient

Advanced Science, EarlyView.
This study presents a novel and facile thickness‐modulated 4D bioprinting approach using a smart bioink made of gelatin, GelMA, and MXene. Leveraging computational models, it creates living constructs with programmable unidirectional and bidirectional curvatures under a single UV exposure.
Jiahui Lai, Tiandi Xiong, Shangsi Chen, Zhilong Zhou, Jun Liu, Boguang Yang, Rocky S. Tuan, Zhong Alan Li   +7 more
wiley   +1 more source

Transcriptome profiling of petal abscission zone and functional analysis of an Aux/IAA family gene RhIAA16 involved in petal shedding in rose

Frontiers in Plant Science, 2016
Roses are one of the most important cut flowers among ornamental plants. Rose flower longevity is largely dependent on the timing of petal shedding occurrence.
Yuerong Gao, Chun Liu, Xiaodong Li, Haiqian Xu, Yue Liang, Nan Ma, Zhangjun Fei, Junping Gao, Cai-Zhong Jiang, Cai-Zhong Jiang, Chao Ma   +10 more
doaj   +1 more source