Results 171 to 180 of about 468,603 (207)

New molecular probes reveal callose structural diversity in plant cell wall microdomains

Benitez-Alfonso Y, Amsbury S, Yeshvekar R, Marcus S, Barber J, German L, Ross J, Manfield I, Knox JP, Willats W, Lelenaite  , Bayer E, Moraes T, Reagan B, Czymmek K, Wickramanayake J, Klebanovych A, Burch-Smith T.   +17 more
europepmc   +1 more source

An Arabidopsis callose synthase

Plant Molecular Biology, 2002
Beta-1,3-glucan polymers are major structural components of fungal cell walls, while cellulosic beta-1,4-glucan is the predominant polysaccharide in plant cell walls. Plant beta-1,3-glucan, called callose, is produced in pollen and in response to pathogen attack and wounding, but it has been unclear whether callose synthases can also produce cellulose ...
John Mundy, Morten Petersen, Ole Mattsson   +2 more
exaly   +5 more sources

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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-Rong Tang, Xiao Wu, Ming Qian, Shouzheng Lv, Hongru Gao, X. Qiao, Guodong Chen, Peng Wang, Shaoling Zhang, Ju-You Wu   +10 more
semanticscholar   +3 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, Yun-Peng Du, Ya-Jie Zhao, Yin Xin, Shaokun Wang, Chang Liu, Zhimin Lin, Shao-Zhong Fang, Yingdong Yang, M. Zaccai, Xiu-Hai Zhang, M. Yi, Sonia Gazzarrini, Jian Wu   +14 more
semanticscholar   +3 more sources

Plant callose synthase complexes

Plant Molecular Biology, 2001
Synthesis of callose (beta-1,3-glucan) in plants has been a topic of much debate over the past several decades. Callose synthase could not be purified to homogeneity and most partially purified cellulose synthase preparations yielded beta-1,3-glucan in vitro, leading to the interpretation that cellulose synthase might be able to synthesize callose ...
Zonglie Hong, Desh Pal S. Verma
exaly   +3 more sources

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, M. Kanaoka, K. Okada, Z. Hong   +4 more
semanticscholar   +3 more sources

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
M. Nishimura, Monica Stein, Bi-Huei Hou, J. Vogel, Herb Edwards, S. Somerville   +5 more
semanticscholar   +3 more sources

Callose synthase (CalS5) is required for exine formation during microgametogenesis and for pollen viability in Arabidopsis [PDF]

Plant Journal, 2005
SummaryCallose (β‐1,3‐glucan) is produced at different locations in response to biotic and abiotic cues. Arabidopsis contains 12 genes encoding callose synthase (CalS). We demonstrate that one of these genes, CalS5, encodes a callose synthase which is responsible for the synthesis of callose deposited at the primary cell wall of meiocytes, tetrads and ...
Zonglie Hong, Magdy M. Mahfouz, Desh Pal S. Verma   +2 more
exaly   +3 more sources

A comprehensive view on organ-specific callose synthesis in wheat (Triticum aestivum L.): glucan synthase-like gene expression, callose synthase activity, callose quantification and deposition

Plant Physiology and Biochemistry, 2006
Callose ((1,3)-beta-glucan) is important during basic developmental processes of plants, but only little is known about the regulation of callose biosynthesis on molecular level. Growing evidence indicates that glucan synthase-like (GSL) genes in higher plants are involved in callose synthesis.
C A, Voigt, W, Schäfer, S, Salomon
openaire   +2 more sources

N-Hydroxypipecolic acid and salicylic acid play key roles in autoimmunity induced by loss of the callose synthase PMR4.

Plant Physiology
In Arabidopsis thaliana, the POWDERY MILDEW RESISTANT4 (PMR4)/GLUCAN SYNTHASE LIKE5 (GSL5) callose synthase is required for pathogen-induced callose deposition in cell wall defense.
B. Fan, Zizhang Li, Amber S. Jannasch, Shunyuan Xiao, Zhi-Xiang Chen   +4 more
semanticscholar   +1 more source