Results 171 to 180 of about 8,159 (207)

Expression of Arabidopsis callose synthase 5 results in callose accumulation and cell wall permeability alteration

Plant Science, 2012
Callose is the major polysaccharide present in the callose wall of developing microspores and the growing pollen tube wall. It is also an essential component of other specialized cell walls and its synthesis can be induced by pathogen infection, wounding and environmental cues.
Bo, Xie, Yunfei, Deng, Masahiro M, Kanaoka, Kiyotaka, Okada, Zonglie, Hong   +4 more
openaire   +2 more sources

Arabidopsis callose synthases CalS1/8 regulate plasmodesmal permeability during stress

Nature Plants, 2016
Plants need to cope with biotic and abiotic stress through well-coordinated cell-to-cell communication to survive as sedentary organisms. Environmental challenges such as wounding, low temperature, oxidative states and pathogen infection are known to affect the symplasmic molecular exchange between plant cells determined by plasmodesmal permeability ...
Weier, Cui, Jung-Youn, Lee
openaire   +2 more sources

PbrCalS5, a callose synthase protein, is involved in pollen tube growth in Pyrus bretschneideri

Planta, 2022
Identification of CalS genes in seven Rosaceae species and functional characterization of PbrCalS5 in pear pollen tube growth by regulating callose deposition. Callose exists widely in angiosperms and has significant functions in a range of developmental processes. Callose is synthesized by callose synthase (CalS).
Peng Cao, Chao Tang, Xiao Wu, Ming Qian, Shouzheng Lv, Hongru Gao, Xin Qiao, Guodong Chen, Peng Wang, Shaoling Zhang, Juyou Wu   +10 more
openaire   +2 more sources

Epigenetic silencing of callose synthase by VIL1 promotes bud-growth transition in lily bulbs

Nature Plants, 2023
In plants, restoring intercellular communication is required for cell activity in buds during the growth transition from slow to fast growth after dormancy release. However, the epigenetic regulation of this phenomenon is far from understood. Here we demonstrate that lily VERNALIZATION INSENSITIVE 3-LIKE 1 (LoVIL1) confers growth transition by ...
Wenqiang Pan, Jingru Li, Yunpeng Du, Yajie Zhao, Yin Xin, Shaokun Wang, Chang Liu, Zhimin Lin, Shaozhong Fang, Yingdong Yang, Michele Zaccai, Xiuhai Zhang, Mingfang Yi, Sonia Gazzarrini, Jian Wu   +14 more
openaire   +2 more sources

A novel callose synthase from pollen tubes of Nicotiana

Planta, 1993
Pollen-tube cell walls are unusual in that they are composed almost entirely of callose, a (1,3)-β-linked glucan with a few 6-linked branches. Regulation of callose synthesis in pollen tubes is under developmental control, and this contrasts with the deposition of callose in the walls of somatic plant cells which generally occurs only in response to ...
Henriette Schl�pmann, Antony Bacic, SteveM. Read   +2 more
openaire   +1 more source

Loss of a Callose Synthase Results in Salicylic Acid-Dependent Disease Resistance

Science, 2003
Plants attacked by pathogens rapidly deposit callose, a β-1,3-glucan, at wound sites. Traditionally, this deposition is thought to reinforce the cell wall and is regarded as a defense response. Surprisingly, here we found that powdery mildew resistant 4 ( pmr4
Marc T, Nishimura, Monica, Stein, Bi-Huei, Hou, John P, Vogel, Herb, Edwards, Shauna C, Somerville   +5 more
openaire   +2 more sources

Characterization and Expression Analyses of Callose Synthase Enzyme (Cals) Family Genes in Maize (Zea mays L.)

Biochemical Genetics, 2021
The callose synthase enzyme genes (Cals) generally plays an important role in resisting to environmental stresses as well as in regulating the microspore development of higher plant. However till now, few researches about ZmCals genes have been reported in maize.
Qunkai Niu, Peng Zhang, Shuai Su, Bin Jiang, Xiaowei Liu, Chuan Li, Tao Yu, Hongyang Yi, Jin Tang, Moju Cao   +9 more
openaire   +2 more sources

Callose and Callose Synthase

1992
Abstract Over the past century numerous cytochemical studies have shown that after various types of stress the polysaccharide callose is deposited, at selected sites, on to the plant cell wall. Callose mainly consists of linear 13-1, 3-glucanase (1-4), and one of its functions is to close the connections that unite protoplasts of ...
openaire   +1 more source

Localization of sucrose synthase and callose in freeze-substituted secondary-wall-stage cotton fibers

Protoplasma, 2003
Methods for cryogenic fixation, freeze substitution, and embedding were developed to preserve the cellular structure and protein localization of secondary-wall-stage cotton (Gossypium hirsutum L.) fibers accurately for the first time. Perturbation by specimen handling was minimized by freezing fibers still attached to a seed fragment within 2 min after
Vadim V, Salnikov, Mark J, Grimson, Robert W, Seagull, Candace H, Haigler   +3 more
openaire   +2 more sources

Expression of callose synthase genes and its connection with Npr1 signaling pathway during pathogen infection

Planta, 2008
Callose synthesis occurs at specific stages of plant cell wall development in all cell types, and in response to pathogen attack, wounding and physiological stresses. We determined the expression pattern of "upstream regulatory sequence" of 12 Arabidopsis callose synthase genes (CalS1-12) genes and demonstrated that different callose synthases are ...
Xiaoyun, Dong, Zonglie, Hong, Jayanta, Chatterjee, Sunghan, Kim, Desh Pal S, Verma   +4 more
openaire   +2 more sources