J Integr Plant Biol

JIPB Board, supporting the plant science community through teamwork

Chun-Ming Liu

2015, 57(4): 326-327. doi:10.1111/jipb.12352

摘要 ( 1719 )

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The plant cell wall

Kurt Fagerstedt and Anna Kärkönen

2015, 57(4): 328-329. doi:10.1111/jipb.12351

摘要 ( 1757 )

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The connection of cytoskeletal network with plasma membrane and the cell wall

Zengyu Liu, Staffan Persson, and Yi Zhang

2015, 57(4): 330-340. doi:10.1111/jipb.12342

摘要 ( 2106 )

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In this review, we summarize the linking proteins involved in the association of the cytoskeletons and the plasma membrane, and/or the cell wall. The prospective roles of these proteins in cell wall biosynthesis and modifications are discussed, aiming to provide a platform for further studies in this field.

Norway spruce (Picea abies) laccases: Characterization of a laccase in a lignin-forming tissue culture

Sanna Koutaniemi, Heli A. Malmberg, Liisa K. Simola, Teemu H. Teeri, and Anna Kärkönen

2015, 57(4): 341-348. doi:10.1111/jipb.12333

摘要 ( 2102 )

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In order to resolve how lignin, an important cell wall component is synthesized in Norway spruce, we have studied laccases with biochemical, molecular biological and bioinformatic means. Laccases are enzymes that participate in the final stages of lignin biosynthesis in many species. Spruce contains numerous laccase genes in the genome.

Simultaneously disrupting AtPrx2, AtPrx25 and AtPrx71 alters lignin content and structure in Arabidopsis stem

Jun Shigeto, Yoshitaka Itoh, Sakie Hirao, Kaori Ohira, Koki Fujita and Yuji Tsutsumi

2015, 57(4): 349-356. doi:10.1111/jipb.12334

摘要 ( 2015 )

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This study showed that simultaneous deficiency of AtPrx2, AtPrx25, and AtPrx71 enhanced lignin decrease of each single mutant, suggesting that the effect on plants can be regulated stepwise by multiple knockouts of these peroxidases. Therefore, manipulation of peroxidase genes is an attractive strategy to improve lignin characteristics.

Ectopic lignification in primary cellulose-deficient cell walls of maize cell suspension cultures

Hugo Mélida, Asier Largo-Gosens, Esther Novo-Uzal, Rogelio Santiago, Federico Pomar, Pedro García, Penélope García-Angulo, José Luis Acebes, Jesús Álvarez, and Antonio Encina

2015, 57(4): 357-372. doi:10.1111/jipb.12346

摘要 ( 1640 )

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Despite their compositional and structural complexity, primary plant cell walls have revealed as highly dynamic compartments able to sense and adapt to different conditions. In this article we report how primary cell walls response to a reduction in cellulose, their major load-bearing component, accumulating a non-expected component, lignin.

The biosynthesis and wall-binding of hemicelluloses in cellulose-deficient maize cells: An example of metabolic plasticity

María de Castro, Janice G. Miller, José Luis Acebes, Antonio Encina, Penélope García-Angulo, and Stephen C. Fry

2015, 57(4): 373-387. doi:10.1111/jipb.12331

摘要 ( 1511 )

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"2,6-Dichlorobenzonitrile is a herbicide that blocks cellulose synthesis. Maize cell-cultures can ‘habituate’, becoming tolerant of moderate 2,6-dichlorobenzonitrile concentrations. Although these cells produce cellulose-poor walls, they compensate by modifying how they integrate non-cellulosic polysaccharides (hemicelluloses) into the cell-wall architecture — an excellent example of the tremendous plasticity of plant metabolism."

Cellulose structure and lignin distribution in normal and compression wood of the Maidenhair tree (Ginkgo biloba L.)

Seppo Andersson, Yurong Wang, Raili Pönni, Tuomas Hänninen, Marko Mononen, Haiqing Ren, Ritva Serimaa, and Pekka Saranpää

2015, 57(4): 388-395. doi:10.1111/jipb.12349

摘要 ( 1900 )

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Maidenhair tree has been described as a living fossil. We studied its cellulose structure and lignin distribution in the cell wall of normal and reaction wood. The properties of juvenile and compression wood as well as the cellulose orientation and crystalline size are similar to modern conifers like Norway spruce.

Endo-β-1,4-glucanases impact plant cell wall development by influencing cellulose crystallization

Magdalena Glass, Sarah Barkwill, Faride Unda and Shawn D. Mansfield

2015, 57(4): 396-410. doi:10.1111/jipb.12353

摘要 ( 1551 )

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The current architecture of proteins and cellular processes thought to be involved in, or influence cellulose biosynthesis are rapidly being elucidated. Among the gene families putatively involved are endoglucanases, and here we characterize two endoglucanase (among 25 in Arabidopsis) and demonstrate that they impact cellulose crystallization and plant development.

A general method for assaying homo- and hetero-transglycanase activities that act on plant cell-wall polysaccharides

Lenka Franková and Stephen C. Fry

2015, 57(4): 411-428. doi:10.1111/jipb.12337

摘要 ( 1562 )

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We demonstrate a novel glass fiber blotting method for assaying transglycanases – enzymes that cut and paste polysaccharides. Compared with conventional methods, also discussed in this paper, it allows screening of non-desalted enzyme extracts for multiple proposed enzyme activities utilizing a wide range of qualitatively different polysaccharide and oligosaccharide substrates.

Distribution, structure and biosynthetic gene families of (1,3;1,4)-β-glucan in Sorghum bicolor

Riksfardini A. Ermawar, Helen M. Collins, Caitlin S. Byrt, Natalie S. Betts, Marilyn Henderson, Neil J. Shirley, Julian Schwerdt, Jelle Lahnstein, Geoffrey B. Fincher and Rachel A. Burton

2015, 57(4): 429-445. doi:10.1111/jipb.12338

摘要 ( 1767 )

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Sorghum is an important emerging cereal that has been relatively neglected. Mixed-linkage glucan is a plant polysaccharide, valuable for human health and to biofuel industries, that has been well studied in barley and wheat. Here we characterise mixed-linkage glucan in parts of the sorghum plant, including the grain.

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