Update info.Tools - Reference - Detail
Reference Detail
| Reference | ||
|---|---|---|
| Author | Lee,Y. and Kende,H. | |
| Title | Expression of alpha-Expansin and Expansin-Like Genes in Deepwater Rice. | |
|
Abstract: Previously, we have studied the expression and regulation of four alpha- and 14 beta-expansin genes in deepwater rice (Oryza sativa). We now report on the structure, expression, and regulation of 22 additional alpha-expansin (Os-EXP) genes, four expansin-like (Os-EXPL) genes, and one expansin-related (Os-EXPR) gene, which have recently been identified in the expressed sequence tag and genomic databases of rice. Alpha-expansins are characterized by a series of conserved Cys residues in the N-terminal half of the protein, a histidine-phenylalanine-aspartate (HFD) motif in the central region, and a series of tryptophan residues near the carboxyl terminus. Of the 22 additional alpha-expansin genes, five are expressed in internodes and leaves, three in coleoptiles, and nine in roots, with high transcript levels in the growing regions of these organs. Transcripts of five alpha-expansin genes were found in roots only. Expression of five alpha-expansin genes was induced in the internode by treatment with gibberellin (GA) and by wounding. The wound response resulted from excising stem sections or from piercing pinholes into the stem of intact plants. EXPL proteins lack the HFD motif and have two additional Cys residues in their C- and N-terminal regions. The positions of conserved tryptophan residues at the C-terminal region are different from those of alpha- and beta-expansins. Expression of the Os-EXPL3 gene is correlated with elongation and slightly induced by applied GA. However, the expression of the Os-EXPL1 and Os-EXPL2 genes showed limited correlation with cell elongation and was not induced by GA. We found no expression of the Os-EXPR1 gene in the organs examined. |
||
| Journal | Plant Physiol. | |
| Country | USA | |
| Volume | 130(3) | |
| Pages | 1396-1405 | |
| Year | 2002 | |
| PubMed ID | 12428004 | |
| PubMed Central ID | - | |
| DOI | 10.1104/pp.008888 | |
| URL | - | |
| Relation | ||
| Gene | EXPA1 EXPA10 EXPA11 EXPA12 EXPA13 EXPA14 EXPA15 EXPA16 EXPA17 EXPA18 EXPA19 EXPA2 EXPA20 EXPA21 EXPA22 EXPA23 EXPA24 EXPA25 EXPA26 EXPA3 EXPA4 EXPA5 EXPA6 EXPA7 EXPA8 EXPA9 EXPL1 EXPL2 EXPL3 EXPR1 | |
| INSD | AF394561 AF394560 AF394559 AF394558 AF394557 AF394556 AF394555 AF394554 AF394553 AF394552 AF394551 AF394550 AF394549 AF394548 AF394547 AF394546 AF394545 AF394544 AF394543 AY039022 AY046929 AY100692 AY100693 AY100694 | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
|
Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
