scholarly journals Disruption of both chloroplastic and cytosolic FBPase genes results in a dwarf phenotype and important starch and metabolite changes in Arabidopsis thaliana

2015 ◽  
Vol 66 (9) ◽  
pp. 2673-2689 ◽  
Author(s):  
José A. Rojas-González ◽  
Mauricio Soto-Súarez ◽  
Ángel García-Díaz ◽  
María C. Romero-Puertas ◽  
Luisa M. Sandalio ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Dwarf Phenotype ◽  
Cytosolic Fbpase

Overexpression of the TIR-X gene results in a dwarf phenotype and activation of defense-related gene expression in Arabidopsis thaliana

2014 ◽  
Vol 171 (6) ◽  
pp. 382-388 ◽  
Author(s):  
Hiroaki Kato ◽  
Tamao Saito ◽  
Hidetaka Ito ◽  
Yoshibumi Komeda ◽  
Atsushi Kato
Keyword(s):  
Gene Expression ◽  
Arabidopsis Thaliana ◽  
Related Gene ◽  
Dwarf Phenotype ◽  
Defense Related Gene ◽  
X Gene

scholarly journals Post-Synthetic Reduction of Pectin Methylesterification Causes Morphological Abnormalities and Alterations to Stress Response in Arabidopsis thaliana

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1558
Author(s):  
Nathan T. Reem ◽  
Lauran Chambers ◽  
Ning Zhang ◽  
Siti Farah Abdullah ◽  
Yintong Chen ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Wall ◽  
Plant Cell ◽  
Cell Walls ◽  
Plant Cell Wall ◽  
Normal Growth ◽  
Pectin Methylesterase ◽  
Dwarf Phenotype ◽  
Response To Stress ◽  
Defense Response Genes

Pectin is a critical component of the plant cell wall, supporting wall biomechanics and contributing to cell wall signaling in response to stress. The plant cell carefully regulates pectin methylesterification with endogenous pectin methylesterases (PMEs) and their inhibitors (PMEIs) to promote growth and protect against pathogens. We expressed Aspergillus nidulans pectin methylesterase (AnPME) in Arabidopsis thaliana plants to determine the impacts of methylesterification status on pectin function. Plants expressing AnPME had a roughly 50% reduction in methylester content compared with control plants. AnPME plants displayed a severe dwarf phenotype, including small, bushy rosettes and shorter roots. This phenotype was caused by a reduction in cell elongation. Cell wall composition was altered in AnPME plants, with significantly more arabinose and significantly less galacturonic acid, suggesting that plants actively monitor and compensate for altered pectin content. Cell walls of AnPME plants were more readily degraded by polygalacturonase (PG) alone but were less susceptible to treatment with a mixture of PG and PME. AnPME plants were insensitive to osmotic stress, and their susceptibility to Botrytis cinerea was comparable to wild type plants despite their compromised cell walls. This is likely due to upregulated expression of defense response genes observed in AnPME plants. These results demonstrate the importance of pectin in both normal growth and development, and in response to biotic and abiotic stresses.

Simultaneous suppression of three genes related to brassinosteroid (BR) biosynthesis altered campesterol and BR contents, and led to a dwarf phenotype in Arabidopsis thaliana

2010 ◽  
Vol 29 (4) ◽  
pp. 397-402 ◽  
Author(s):  
Ho Yong Chung ◽  
Shozo Fujioka ◽  
Sunghwa Choe ◽  
Soyoun Lee ◽  
Youn Hyung Lee ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Dwarf Phenotype

scholarly journals Identification of an Allele of VAM3/SYP22 that Confers a Semi-dwarf Phenotype in Arabidopsis thaliana

2005 ◽  
Vol 46 (8) ◽  
pp. 1358-1365 ◽  
Author(s):  
Ichiro Ohtomo ◽  
Haruko Ueda ◽  
Tomoo Shimada ◽  
Chiaki Nishiyama ◽  
Yasuko Komoto ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Dwarf Phenotype

scholarly journals Effect of Thermospermine on the Growth and Expression of Polyamine-Related Genes in Rice Seedlings

Plants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 269 ◽  
Author(s):  
Minaho Miyamoto ◽  
Satoshi Shimao ◽  
Wurina Tong ◽  
Hiroyasu Motose ◽  
Taku Takahashi
Keyword(s):  
Gene Expression ◽  
Arabidopsis Thaliana ◽  
Day Treatment ◽  
Polyamine Oxidase ◽  
Xylem Differentiation ◽  
Rice Seedlings ◽  
Dwarf Phenotype ◽  
Negative Feedback Control ◽  
Exogenous Supply

A mutant defective in the biosynthesis of thermospermine, acaulis5 (acl5), shows a dwarf phenotype with excess xylem vessels in Arabidopsis thaliana. Exogenous supply of thermospermine remarkably represses xylem differentiation in the root of seedlings, indicating the role of thermospermine in proper repression of xylem differentiation. However, the effect of thermospermine has rarely been investigated in other plant species. In this paper, we examined its effect on the growth and gene expression in rice seedlings. When grown with thermospermine, rice seedlings had no clearly enlarged metaxylem vessels in the root. Expression of OsACL5 was reduced in response to thermospermine, suggesting a negative feedback control of thermospermine biosynthesis like in Arabidopsis. Unlike Arabidopsis, however, rice showed up-regulation of phloem-expressed genes, OsHB5 and OsYSL16, by one-day treatment with thermospermine. Furthermore, expression of OsPAO2 and OsPAO6, encoding extracellular polyamine oxidase whose orthologs are not present in Arabidopsis, was induced by both thermospermine and spermine. These results suggest that thermospermine affects the expression of a subset of genes in rice different from those affected in Arabidopsis.

Stable genetic transformation of Arabidopsis thaliana by Agrobacterium inoculation in planta

1994 ◽  
Vol 5 (4) ◽  
pp. 551-558 ◽  
Author(s):  
Seok So Chang ◽  
Soon Ki Park ◽  
Byung Chul Kim ◽  
Bong Joong Kang ◽  
Dal Ung Kim ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Genetic Transformation ◽  
In Planta

The effect of daylength on the transition to flowering in phytochrome-deficient, late-flowering and double mutants of Arabidopsis thaliana

1995 ◽  
Vol 95 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Maarten Koornneef ◽  
Corrie Hanhart ◽  
Patty van Loenen-Martinet ◽  
Hetty Blankestijn de Vries
Keyword(s):  
Arabidopsis Thaliana ◽  
Late Flowering ◽  
Transition To Flowering
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