scholarly journals The Growth Reduction Associated with Repressed Lignin Biosynthesis in Arabidopsis thaliana Is Independent of Flavonoids

2010 ◽  
Vol 22 (5) ◽  
pp. 1620-1632 ◽  
Author(s):  
Xu Li ◽  
Nicholas D. Bonawitz ◽  
Jing-Ke Weng ◽  
Clint Chapple
Keyword(s):  
Arabidopsis Thaliana ◽  
Lignin Biosynthesis ◽  
Growth Reduction

Effects of Polychlorinated Biphenyls on Lignin Biosynthesis in Arabidopsis thaliana

2021 ◽  
Author(s):  
Fanella Zamcho ◽  
Aaron Newborn ◽  
Ayesha Karamat ◽  
Rouzbeh Tehrani ◽  
Nancy Pleshko ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Polychlorinated Biphenyls ◽  
Lignin Biosynthesis

Bioinformatic and functional characterization of the basic peroxidase 72 from Arabidopsis thaliana involved in lignin biosynthesis

Planta ◽  
2013 ◽  
Vol 237 (6) ◽  
pp. 1599-1612 ◽  
Author(s):  
Joaquín Herrero ◽  
Francisco Fernández-Pérez ◽  
Tatiana Yebra ◽  
Esther Novo-Uzal ◽  
Federico Pomar ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Functional Characterization ◽  
Lignin Biosynthesis

Looking for Arabidopsis thaliana peroxidases involved in lignin biosynthesis

2013 ◽  
Vol 67 ◽  
pp. 77-86 ◽  
Author(s):  
Joaquín Herrero ◽  
Alberto Esteban-Carrasco ◽  
José Miguel Zapata
Keyword(s):  
Arabidopsis Thaliana ◽  
Lignin Biosynthesis

scholarly journals Prediction of some peroxidase functions in Arabidopsis thaliana L. by bioinformatic search

2019 ◽  
Vol 23 (5) ◽  
pp. 615-623
Author(s):  
A. S. Tugbaeva ◽  
A. A. Ermoshin ◽  
I. S. Kiseleva
Keyword(s):  
Arabidopsis Thaliana ◽  
Amino Acid ◽  
Functional Organization ◽  
Plant Protection ◽  
Lignin Biosynthesis ◽  
Amino Acid Sequences ◽  
Published Data ◽  
Class Iii ◽  
Molecular Weights ◽  
Isoelectric Points

Peroxidases of class III are common in various organisms. They are involved in lignin biosynthesis and plant protection against stressors. Peroxidases are presented in many isoforms, whose role is not always clear. The aim of this study is to analyze the amino acid sequences of reference peroxidases with known functions and peroxidases from Arabidopsis thaliana L. whose functions are unknown and to consider their putative roles in lignin biosynthesis. The structural and functional organization of peroxidases was analyzed by bioinformatical methods applied to open Internet sources. Seven reference peroxidases were chosen from four plant species: Zinnia sp., Armoracia rusticana P.G. Gaertn., Lycopersicon esculentum L. и Populus alba L. Twenty-four amino acid sequences of homologous peroxidases from A. thaliana were selected for the analyses with the BLAST service. Their molecular weights and isoelectric points were calculated. Multiple alignments of amino acid sequences and phylogenetic analysis were done. Sites of binding to monolignol substrates were identified in seven peroxidases from A. thaliana, and the enzymes were assigned to the groups of Sor G-peroxidases. Amino acid replacements in the primary structures of peroxidases were analyzed. Peroxidases from A. thaliana were clustered with reference peroxidases. They formed six clusters on the phylogenetic tree, three of which contained only A. thaliana peroxidases. Peroxidases within each cluster had similar molecular weights and isoelectric points, common localization of expression, and similar functions. Thus, the use of bioinformatics, databases, and published data bring us to assumptions as to the functions of several A. thaliana class III peroxidases. AtPrx39 peroxidase was shown to be affine to sinapyl alcohol; AtPrx54, to p-coumaryl and coniferyl alcohols. They are likely to participate in lignin biosynthesis.

scholarly journals Omeprazole Enhances Mechanical Stress-Induced Root Growth Reduction in Arabidopsis thaliana

2018 ◽  
Vol 59 (8) ◽  
pp. 1581-1591 ◽  
Author(s):  
Takashi Okamoto ◽  
Shogo Takatani ◽  
Yoshiteru Noutoshi ◽  
Hiroyasu Motose ◽  
Taku Takahashi
Keyword(s):  
Arabidopsis Thaliana ◽  
Root Growth ◽  
Mechanical Stress ◽  
Growth Reduction ◽  
Root Growth Reduction

Characterization of vascular lignification in Arabidopsis thaliana

1992 ◽  
Vol 70 (11) ◽  
pp. 2238-2244 ◽  
Author(s):  
D. P. Dharmawardhana ◽  
B. E. Ellis ◽  
J. E. Carlson
Keyword(s):  
Arabidopsis Thaliana ◽  
Laser Scanning ◽  
Secondary Growth ◽  
Lignin Biosynthesis ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Serial Sectioning ◽  
Basic Fuchsin ◽  
Histological Techniques

The developmental timing of lignin biosynthesis and the nature of the polymer have been studied in Arabidopsis thaliana using biochemical and histological techniques. Embryos and developing seedlings were stained with basic fuchsin, and the internal vascular strands were imaged by the optical serial sectioning capability of confocal laser scanning microscopy. Lignin could not be detected in seedlings until approximately 36 h after germination. As the radicle, hypocotyl, and cotyledon expanded, lignification proceeded as a temporally coordinated event closely linked to appearance of spiral or annular thickenings in the developing vasculature. Although A. thaliana does not undergo secondary growth, the plants were extensively lignified by the bolting stage. Chemical analysis demonstrated that Arabidopsis lignin contains primarily guaiacyl units, accompanied by lesser amounts of syringyl structures. Key words: Arabidopsis, lignin, development, confocal microscopy.

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