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ZmMYB31 directly represses maize lignin genes and redirects the phenylpropanoid metabolic flux.
Few regulators of phenylpropanoids have been identified in monocots having potential as biofuel crops. Here we demonstrate the role of the maize (Zea mays) R2R3-MYB factor ZmMYB31 in the control ofExpand
The maize ZmMYB42 represses the phenylpropanoid pathway and affects the cell wall structure, composition and degradability in Arabidopsis thaliana
The results suggest that ZmMYB42 may be part of the regulatory network controlling the phenylpropanoid biosynthetic pathway and affects the cell wall structure and degradability, and its polysaccharide composition. Expand
Altered lignin biosynthesis improves cellulosic bioethanol production in transgenic maize plants down-regulated for cinnamyl alcohol dehydrogenase.
In vitro degradability assays showed that the changes induced by the repression of CAD activity produced midribs and stems more degradable than wild-type plants, making CAD a good target to improve both the nutritional and energetic values of maize lignocellulosic biomass. Expand
Cell wall modifications of bean (Phaseolus vulgaris) cell suspensions during habituation and dehabituation to dichlobenil.
Analysis of habituated cell walls by Fourier transform infrared spectroscopy and cell wall fractionation revealed a reduced amount of cellulose and hemicelluloses, mainly xyloglucan, qualitative and quantitative differences in pectin levels, and a non-crystalline and soluble beta-1,4-glucan. Expand
FTIR spectroscopy monitoring of cell wall modifications during the habituation of bean (Phaseolus vulgaris L.) callus cultures to dichlobenil
FTIR spectroscopy associated with a set of statistical tools is a powerful method for analyzing in muro–and more rapidly–the changes in polysaccharides related to dichlobenil habituation, and that it could be used in the future to identify cell wall changes related to habituation to other herbicides or stress factors. Expand
The use of FTIR spectroscopy to monitor modifications in plant cell wall architecture caused by cellulose biosynthesis inhibitors
This mini-review examines the use of FTIR spectroscopy in conjunction with multivariate analyses to monitor cell wall changes related to the exposure of diverse plant materials to cellulose biosynthesis inhibitors (CBIs) and the habituation/dehabituation of plant cell cultures to this kind of herbicides. Expand
Histological aspects of three Pistacia terebinthus galls induced by three different aphids: Paracletus cimiciformis, Forda marginata and Forda formicaria
The microscopic anatomy of three galls located on Pistacia terebinthus leaflets, induced by three species of gallicolous aphids, is studied and hypertrophy and hyperplasia of parenchyma cells are observed. Expand
Characterization of cell walls in bean (Phaseolus vulgaris L.) callus cultures tolerant to dichlobenil.
Cell wall fractionation showed that in tolerant cell walls the xyloglucan-cellulose network of non-tolerant cell walls was partly replaced by a pectin-rich network mainly formed of cross-linked polyuronides with a large proportion of homogalacturonan. Expand
ZmXTH1, a new xyloglucan endotransglucosylase/hydrolase in maize, affects cell wall structure and composition in Arabidopsis thaliana.
Xyloglucan endotransglucosylase/hydrolases (XTHs; EC and/or EC are enzymes involved in the modification of cell wall structure by cleaving and, often, also re-joining xyloglucanExpand
Novel type II cell wall architecture in dichlobenil-habituated maize calluses
The results prove that the architecture of type II cell walls is able to compensate for deficiencies in cellulose content with a more extensive and phenolic cross-linked network of arabinoxylans, without necessitating β-glucan or other polymer enhancement. Expand