Results 61 to 70 of about 284,770 (295)

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

Advanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi, Ashley Vazquez, Alexander J. Choi, Dimitrios Karamichos, Jayoung Kim   +4 more
wiley   +1 more source

Breeding systems in some representatives of the genus Lycium (Solanaceae)

Bothalia: African Biodiversity & Conservation, 1994
The development of the ovule and the embryo sac of five of the 17 species of Lycium and of one hybrid, recorded for southern Africa, was investigated.
L. Minne, J. J. Spies, H. J. T. Venter, A. M. Venter   +3 more
doaj   +1 more source

The Embryo Sac of Physostegia [PDF]

Botanical Gazette, 1911
1. The archesporium of Physostegia consists of a single hypodermal cell, which, without formation of parietals, functions as the megaspore mother cell. 2. The megaspore mother cell by two successive divisions gives rise to a row of four megaspores; the chalazal one enlarges and gives rise to the embryo sac, while the other three disorganize. 3.
openaire   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Ultrastructure of endothelium in ovules of Penstemon gentianoides poir. (scrophulariaceae) at mature embryo sac phase

, 2007
In this study ultrastructural differences between endothelial cells of different location in Penstemon gentianoides have been examined with electron microscope at mature embryo sac phase.
Nuran Ekici, Olgun, Goeksel, Dane, Feruzan, Ekici, Nuran, Feruzan Dane, Göksel Olgun   +5 more
core   +2 more sources

Three-dimensional label-free imaging of mammalian yolk sac vascular remodeling with optical resolution photoacoustic microscopy

Photoacoustics, 2020
Vessel development in the yolk sac is important for the embryo development and the malfunction of which can lead to cardiac dysfunction, embryonic malformation and miscarriage.
Doudou Huang, Yali Huang, Qi Qiu, Kai Wang, Zhihong Li, Youliang Yao, Gang Liu, Qingliang Zhao, Xiaoyuan Chen   +8 more
doaj   +1 more source

Embryo Sac of Pandanus [PDF]

Botanical Gazette, 1910
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Pollen and embryo sac development in neo-tetraploid rice lines.

, 2019
(a): Pollens of diploid rice (>95% pollen fertility). (b) and (c): Pollens of autotetraploid parents (T44 and T45), Arrows indicated abnormal pollens. (d), (e) and (f): Pollens of neo-tetraploid rice lines, and more than 92% pollens were normal.
Zhixiong Chen (3115491), Lan Wang (85307), Xiangdong Liu (79858), Jinwen Wu (3722080), Muhammad Qasim Shahid (840583), Xuejun Bei (6560333)   +5 more
core   +1 more source

Mr BMT Achieves Systemic Macrophage Replacement With Preservation of Tissue Homeostasis

Advanced Science, EarlyView.
Microglia replacement by bone marrow transplantation (Mr BMT) enables systemic replacement of tissue‐resident macrophages. Despite persistent macrophage and tissue remodeling across multiple organs, core biological functions and innate immune responses remain preserved, supporting long‐term maintenance of organismal homeostasis and the therapeutic ...
Yufei Xu, Miaozhan Zou, Yunshang Bai, Yang He, Zhihao Jin, Baozhi Yang, Jinjin Du, Pei Ouyang, Yuanyuan Cai, Yuheng Zhang, Bingying Du, Chengcheng Ge, Jian‐an Gong, Xiaoyu Li, Yuanyi Zheng, Jing Ding, Bo Peng, Yanxia Rao   +17 more
wiley   +1 more source

Longitudinal volumetric analysis of in ovo compartments in chicken eggs using ultra-high-field magnetic resonance imaging

Frontiers in Veterinary Science
IntroductionThe chicken egg, with its in ovo compartments, is a widely used and popular animal model in experimental studies. This study aimed to quantify the volumes of the yolk/yolk sac, amniotic fluid, and chicken embryo in ovo using non-invasive ...
Felix Streckenbach, Felix Streckenbach, Hanna Schön, Hanna Schön, Julia König, Marcus Frank, Marcus Frank, Inga Langner, Oliver Stachs, Oliver Stachs, Anika Jonitz-Heincke, Anika Jonitz-Heincke, Sönke Langner, Tobias Lindner, Tobias Lindner, Jana Schätzel   +15 more
doaj   +1 more source