Results 51 to 60 of about 10,623 (232)

Morphological and ultrastructural variations in Scliizjaea pectinata (Schizaeaceae: Pteridophyta)

Bothalia: African Biodiversity & Conservation, 1994
Schizaea pectinata (L.) Sw. was collected from the extreme ends of its geographical range in South Africa for a study of sporangial development, sporogenesis and tapetal organisation.
B. M. Parkinson
doaj   +1 more source

FlowerNet: a gene expression correlation metwork for anther and pollen development [PDF]

, 2015
Floral formation, in particular anther and pollen development, is a complex biological process with critical importance for seed set and for targeted plant breeding.
Ferguson, Alison, King, John, Pearce, Simon, Wilson, Zoe A.   +3 more
core   +4 more sources

The Maize ZmbHLH118 Transcription Factor Regulates Vacuolar Nitrate Loading by the NO3− Transporter ZmCLCa

Advanced Science, EarlyView.
In maize, the bHLH transcription factor ZmbHLH118 directly binds to the promoter of ZmCLCa and inhibits its expression. Tonoplast‐localized ZmCLCa mediates NO3− influx into the vacuole to regulate intracellular NO3− homeostasis, modulating nitrate uptake and metabolism, plant growth, and grain yield.
Chaonan Zhang, Elsa Demes‐Causse, Xujian Li, Zhenhui Guo, Hanshu Zhao, Huairong Cao, Yajing Song, Lijun Mu, Kaikai Zhang, Jing Zhang, Zhongtao Jia, Lixing Yuan, Alexis De Angeli, Jingbo Zhang   +13 more
wiley   +1 more source

Salicylic acid reverses pollen abortion of rice caused by heat stress

BMC Plant Biology, 2018
Background Extremely high temperatures are becoming an increasingly severe threat to crop yields. It is well documented that salicylic acid (SA) can enhance the stress tolerance of plants; however, its effect on the reproductive organs of rice plants has
Baohua Feng, Caixia Zhang, Tingting Chen, Xiufu Zhang, Longxing Tao, Guanfu Fu   +5 more
doaj   +1 more source

A Rapid Alkalinization Factor-like Peptide EaF82 Impairs Tapetum Degeneration during Pollen Development through Induced ATP Deficiency

Cells, 2023
In plants, the timely degeneration of tapetal cells is essential for providing nutrients and other substances to support pollen development. Rapid alkalinization factors (RALFs) are small, cysteine-rich peptides known to be involved in various aspects of
Chiu-Yueh Hung, Farooqahmed S. Kittur, Keely N. Wharton, Makendra L. Umstead, D’Shawna B. Burwell, Martinique Thomas, Qi Qi, Jianhui Zhang, Carla E. Oldham, Kent O. Burkey, Jianjun Chen, Jiahua Xie   +11 more
doaj   +1 more source

Maize Anther Development Involves Translated Open Reading Frames From 3′ Untranslated Regions

Advanced Science, EarlyView.
This study examined the translation activity across ten stages of maize anther development, integrating transcriptome and small‐peptide data. It linked mutations in translated 3' ORFs to anther sterility, exemplified by Zm00001eb417050_3' ORF (known as APV1). In addition, the data indicated that maize anthers could assimilate CO2 through the stomata in
Chunyu Wang, Yuechao Wu, Shunxi Wang, Han Liu, Siqi Jiang, Yingjia Han, Liuji Wu, Tao Zhang, Mei Zhang   +8 more
wiley   +1 more source

OsMS188 Is a Key Regulator of Tapetum Development and Sporopollenin Synthesis in Rice

Rice, 2021
Background During anther development, the tapetum provides essential nutrients and materials for pollen development. In rice, multiple transcription factors and enzymes essential for tapetum development and pollen wall formation have been cloned from ...
Yu Han, Si-Da Zhou, Jiong-Jiong Fan, Lei Zhou, Qiang-Sheng Shi, Yan-Fei Zhang, Xing-Lu Liu, Xing Chen, Jun Zhu, Zhong-Nan Yang   +9 more
doaj   +1 more source

“Hands‐On” white matter anatomy: Using Air Anatomy gestures and tractography on simple brain sections to enhance teaching of white matter directions

Anatomical Sciences Education, EarlyView.
Abstract Teaching white matter (WM) anatomy to undergraduates is challenging. This is partly because WM fibers are oriented intricately and Klingler's dissection, the gold standard method used to demonstrate it, often requires time, advanced anatomical knowledge, and refined dissection skills.
Doris George Yohannan, Rohini Punja, Thomas Iype, Chandrasekharan Kesavadas, Bejoy Thomas, Kannanvilakom Govindapillai Umesan, Aswathy Maria Oommen, Usha Devi Keezhathil Bhargavi   +7 more
wiley   +1 more source

Embryological studies inMecardonia procumbens (Miller) small [PDF]

, 1983
Sporogeneses, development of gametophytes, endosperm and embryo ofMecardonia procumbens (Miller) Small have been described. The wall of the microsporangium consists of an epidermis, an endothecium, a middle layer and a glandular tapetum.
Krishne Gowda, ., Magaraj, M.
core   +1 more source

Associations of Vestibular Disorders With Risk of All‐Cause and Cause‐Specific Dementia: A Longitudinal Cohort Study in UK Biobank

Sensory Neuroscience, EarlyView.
ABSTRACT To explore associations of vestibular disorders with all‐cause and cause‐specific dementia and underlying biological mechanisms/neuroimaging changes. A population‐based cohort study of 406,348 UK Biobank participants was conducted. Inverse probability of treatment weighting (IPTW) balanced baseline covariates, and Cox proportional hazards ...
Xiaofei Li, Fan Jiang, Qiuyue Dong, Hao Chen, Hanbing Ji, Alimu Dayimu, Yifan Yu, Guorong Li, Na Li, Peipei Fu, Qi Jing, Maoli Duan, Hongkai Li, Shanquan Chen, Daogong Zhang, Haibo Wang   +15 more
wiley   +1 more source