2 Xyloglucan
Mostrando 1-12 de 51 artigos, teses e dissertações.
-
1. Expression of genes related to soil flooding tolerance in soybeans
ABSTRACT. The flooded environment brings about injuries to soybeans that vary depending on the adaptation ability of the genotype. Oxygen deprivation promotes the induction of the expression of genes related to glycolysis and fermentation pathways to maintain energy metabolism and, in addition to reducing-power consuming processes, act in the formation of ad
Acta Sci., Agron.. Publicado em: 23/09/2019
-
2. Expression analysis of cell wall assembly and remodelling-related genes in Arabidopsis roots subjected to boron stress and brassinosteroid at different developmental stages
ABSTRACT Plant cell walls are affected by many biotic and abiotic stress conditions. The aim of this study is to determine the effects of 24-Epibrassinolide (EBL) on some cell wall-related genes in root tissue of five- and ten-week-old Arabidopsis thaliana plants exposed to boron (B) deficiency (0 µM) or toxicity (3000 µM) at the transcriptional level. Exp
Acta Bot. Bras.. Publicado em: 09/04/2018
-
3. Synthesis and characterization of a cysteine xyloglucan conjugate as mucoadhesive polymer
O objetivo deste estudo foi melhorar o potencial mucoadesivo do polímero xiloglicano pela ligação covalente de cisteína como unidade de tiol. O polímero xiloglicano foi quimicamente modificado pela introdução de cloridrato de cisteína como grupo contendo sulfidrila. Prepararam-se diferentes lotes de conjugados cisteína-xiloglicano em pH variando de
Braz. J. Pharm. Sci.. Publicado em: 2013-06
-
4. Caracterização estrutural das hemiceluloses de paredes celulares de cana-de-açúcar / Characterization of the sugarcane cell wall hemicelluloses
O Brasil, segundo maior produtor mundial de biocombustíveis, produz etanol a partir da extração e fermentação de sacarose de colmos de cana-de-açúcar. A utilização da energia presente nas ligações químicas entre os carboidratos da parede celular (celulose, hemiceluloses e pectina), das biomassas de folha e bagaço (hoje ambos considerados resídu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/06/2012
-
5. Phytotoxic and antifungal compunds from legume seeds that accumulate glactomannan and xyloglucan as cell wall storage polysacharides / Substancias fitotoxicas e antifungicas em sementes de leguminosas que acumulam gelactomanano e xiloglucano como carboidratos de reservas de parede celular
Sesbania virgata (Cav.) Pers. and Hymenaea courbaril L. var. stilbocarpa (Fabaceae) are two tropical legume species with seeds that contain galactomannan and xyloglucan, respectively, as seed storage polysaccharides, which are broken down after germination, generating large amounts of monosaccharides and oligosaccharides. Part of these sugars is released to
Publicado em: 2008
-
6. Analise filogenetica das enzimas hidroliticas de Xiloglucano no reino Viridiplantae e construção de bibliotecas de cDNA de Jatoba (Hymenaea courbaril) / Phylogenetic analysis of Xyloglucan s hydrolytic enzymes in the Viridiplantae kingdom and construction of cDNA libraries from Jatoba (Hymenaea courbaril)
Introdução: Os xiloglucanos são os polímeros de açúcar mais abundantes na hemicelulose da maioria das espécies de plantas terrestres, em especial nas eudicotiledôneas. Possuem papel estrutural na parede celular vegetal, interagindo com os filamentos de celulose, e podem ser utilizados como reserva em sementes de várias espécies de eudicotiledôneas
Publicado em: 2008
-
7. O efeito da temperatura na ação da xiloglucano endo-beta-transglicosilase sobre xiloglucanos de reserva
Xyloglucan is a cell wall polysaccharide structurally based on a backbone of p-1,4 linked glucosyl residues (similar to cellulose), which is branched with xylose (at a0-6 position) in a fairly regular formo Xyloses at certain positions are branched with galactosyl residues at p-0-2 positions and further with fucosyl or arabinosyl residues are attached to cer
Publicado em: 2002
-
8. Importancia ecofisiologica da reserva de xiloglucano e o controle de sua mobilização em cotiledones de Hymenaea courbaril L
Hymenaea courbarí/ is a climax leguminous tree species considered to be shade tolerant with wide neotropical geographic distribution. Seed cotyledons are rich in xyloglucan (XG), which is the main carbon reserve for the seedling growth. This polymer is a cell wall polysaccharide and its mobilisation mechanism, based on the co-ordinated action of four enzyme
Publicado em: 2002
-
9. Mobilização de xiloglucano de reserva em sementes de Hymenaea courbaril L
Some species of Leguminosae accumulate high amounts of polysaccharides in the seed. These polysaccharides are translocated to the embryo after the germination, being an important source of carbon and energy to the developing plantlet. Seeds of Hymenaea courbaril L. store up to 40% of the seed mass in the form of xyloglucan deposited in the walls of parenchym
Publicado em: 1997
-
10. The mur2 mutant of Arabidopsis thaliana lacks fucosylated xyloglucan because of a lesion in fucosyltransferase AtFUT1
Cell walls of the Arabidopsis mutant mur2 contain less than 2% of the wild-type amount of fucosylated xyloglucan because of a point mutation in the fucosyltransferase AtFUT1. The mur2 mutation eliminates xyloglucan fucosylation in all major plant organs, indicating that Arabidopsis thaliana fucosyltransferase 1 (AtFUT1) accounts for all of the xyloglucan fuc
The National Academy of Sciences.
-
11. Pea Xyloglucan and Cellulose: VI. Xyloglucan-Cellulose Interactions in Vitro and in Vivo
Since xyloglucan is believed to bind to cellulose microfibrils in the primary cell walls of higher plants and, when isolated from the walls, can also bind to cellulose in vitro, the binding mechanism of xyloglucan to cellulose was further investigated using radioiodinated pea xyloglucan. A time course for the binding showed that the radioiodinated xyloglucan
-
12. Characterization of a Tomato Xyloglucan Endotransglycosylase Gene That Is Down-Regulated by Auxin in Etiolated Hypocotyls1
The reorganization of the cellulose-xyloglucan matrix is proposed to serve as an important mechanism in the control of strength and extensibility of the plant primary cell wall. One of the key enzymes associated with xyloglucan metabolism is xyloglucan endotransglycosylase (XET), which catalyzes the endocleavage and religation of xyloglucan molecules. As wit
American Society of Plant Physiologists.