| 21 matches found in 10 documents. Search time: 0.65 seconds. |
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Score: 8.00 |
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| Title: The COP1 ortholog PPS regulates the juvenile-adult and vegetative-reproductive phase changes in rice .
| | Author: Tanaka N Itoh H Sentoku N Kojima M Sakakibara H Izawa T Itoh J Nagato Y | | Journal: Plant Cell Citation: V : 23 P : 2143-54 Year: 2011 Type: In-Process | | Literature: oryza Field: abstract Doc ID: pub21705640 Accession (PMID): 21705640 | | Abstract: Because plant reproductive development occurs only in adult plants , the juvenile-to-adult phase change is an indispensable part of the plant life cycle .
We identified two allelic mutants , peter pan syndrome-1 ( pps-1 ) and pps-2 , that prolong the juvenile phase in rice ( Oryza sativa ) and showed that rice PPS is an ortholog of Arabidopsis thaliana CONSTITUTIVE PHOTOMORPHOGENIC1 .
The pps-1 mutant exhibits delayed expression of miR156 and miR172 and the suppression of GA biosynthetic genes , reducing the GA ( 3 ) content in this mutant .
In spite of its prolonged juvenile phase , the pps-1 mutant flowers early , and this is associated with derepression of RAP1B expression in pps-1 plants independently of the Hd1-Hd3a/RFT1 photoperiodic pathway .
PPS is strongly expressed in the fourth and fifth leaves , suggesting that it regulates the onset of the adult phase downstream of MORI1 and upstream of miR156 and miR172 .
Its ability to regulate the vegetative phase change and the time of flowering suggests that rice PPS acquired novel functions during the evolution of rice/monocots .
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[ Sen. 2, subscore: 3.00 ]: We identified two allelic mutants , peter pan syndrome-1 ( pps-1 ) and pps-2 , that prolong the juvenile phase in rice ( Oryza sativa ) and showed that rice PPS is an ortholog of Arabidopsis thaliana CONSTITUTIVE PHOTOMORPHOGENIC1 .
[ Sen. 4, subscore: 2.00 ]: In spite of its prolonged juvenile phase , the pps-1 mutant flowers early , and this is associated with derepression of RAP1B expression in pps-1 plants independently of the Hd1-Hd3a/RFT1 photoperiodic pathway .
[ Sen. 3, subscore: 1.00 ]: The pps-1 mutant exhibits delayed expression of miR156 and miR172 and the suppression of GA biosynthetic genes , reducing the GA ( 3 ) content in this mutant .
[ Sen. 5, subscore: 1.00 ]: PPS is strongly expressed in the fourth and fifth leaves , suggesting that it regulates the onset of the adult phase downstream of MORI1 and upstream of miR156 and miR172 .
[ Sen. 6, subscore: 1.00 ]: Its ability to regulate the vegetative phase change and the time of flowering suggests that rice PPS acquired novel functions during the evolution of rice/monocots .
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Score: 7.00 |
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| Title: A pathogenic picorna-like virus from the endoparasitoid wasp , Pteromalus puparum : initial discovery and partial genomic characterization .
| | Author: Zhu JY Ye GY Fang Q Wu ML Hu C | | Journal: Virus Res Citation: V : 138 P : 144-9 Year: 2008 Type: In-Process | | Literature: oryza Field: abstract Doc ID: pub18831994 Accession (PMID): 18831994 | | Abstract: Using electron microscopy , we demonstrated the presence of a novel small RNA-containing virus in the venom apparatus of an endoparasitic wasp , Pteromalus puparum , designated as PpSRV .
Morphologically , PpSRV has classical features of picorna-like viruses .
It caused the development deterioration and it issue destruction of P puparum venom apparatus .
The laboratory colony of P puparum was infectious with PpSRV at a low level .
Partial genomic sequence analysis indicated that PpSRV 3-proximal genome was characteristically similar to most dicistroviruses containing an internal ribosome entry site ( IRES ) for facilitating cap-independent translation and a 3 ORF encoding a structural protein with three major capsid polyproteins ( 28 , 31 and 28 kDa ) and a minor one ( 9 . 6 kDa ) .
Phylogenetic evolution analysis of PpSRV structural protein with the counterparts of other dicistroviruses exhibited that PpSRV belonged to the Cripavirus genus and fell into same clade with Black queen cell virus ( BQCV ) , an infectious virus to honey bee , suggesting that PpSRV might be pathogenic to P puparum .
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[ Sen. 6, subscore: 3.00 ]: Phylogenetic evolution analysis of PpSRV structural protein with the counterparts of other dicistroviruses exhibited that PpSRV belonged to the Cripavirus genus and fell into same clade with Black queen cell virus ( BQCV ) , an infectious virus to honey bee , suggesting that PpSRV might be pathogenic to P puparum .
[ Sen. 1, subscore: 1.00 ]: Using electron microscopy , we demonstrated the presence of a novel small RNA-containing virus in the venom apparatus of an endoparasitic wasp , Pteromalus puparum , designated as PpSRV .
[ Sen. 2, subscore: 1.00 ]: Morphologically , PpSRV has classical features of picorna-like viruses .
[ Sen. 4, subscore: 1.00 ]: The laboratory colony of P puparum was infectious with PpSRV at a low level .
[ Sen. 5, subscore: 1.00 ]: Partial genomic sequence analysis indicated that PpSRV 3-proximal genome was characteristically similar to most dicistroviruses containing an internal ribosome entry site ( IRES ) for facilitating cap-independent translation and a 3 ORF encoding a structural protein with three major capsid polyproteins ( 28 , 31 and 28 kDa ) and a minor one ( 9 . 6 kDa ) .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 4.00 |
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| Title: Tall fescue genomic SSR markers : development and transferability across multiple grass species .
| | Author: Saha MC Cooper JD Mian MA Chekhovskiy K May GD .
| | Journal: Theor . Appl . Genet . Citation: V : 113 ( 8 ) P : 1449-58 Year: 2006 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub16947059 Accession (PMID): 16947059 | | Abstract: Simple sequence repeat ( SSR ) markers are highly informative and widely used for genetic and breeding studies .
Currently , a very limited number of SSR markers are available for tall fescue ( Festuca arundinacea Schreb . ) and other forage grass species .
A tall fescue genomic library enriched in ( GA/CT ) ( n ) repeats was used to develop primer pairs ( PPs ) flanking SSRs and assess PP functionality across different forage , cereal , and turf grass species .
A total of 511 PPs were developed and assessed for their utility in six different grass species .
The parents and a subset of a tall fescue mapping population were used to select PPs for mapping in tall fescue .
Survey results revealed that 48% ( in rice ) to 66% ( in tall fescue ) of the PPs produced clean SSR-type amplification products in different grass species .
Polymorphism rates were higher in tall fescue ( 68% ) compared to other species ( 46% ryegrass , 39% wheat , and 34% rice ) .
A set of 194 SSR loci ( 38% ) were identified which amplified across all six species .
Loci segregating in the tall fescue mapping population were grouped as loci segregating from the female parent ( HD28-56 , 37% ) , the male parent ( R43-64 , 37% ) , and both parents ( 26% ) .
Three percent of the loci that were polymorphic between parents were monomorphic in the pseudo F1 mapping population and the remaining loci segregated .
Sequencing of amplified products obtained from PP NFFAG428 revealed a very high level of sequence similarity among the grass species under study .
Our results are the first report of genomic SSR marker development from tall fescue and they demonstrate the usefulness of these SSRs for genetic linkage mapping in tall fescue and cross-species amplification .
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[ Sen. 3, subscore: 1.00 ]: A tall fescue genomic library enriched in ( GA/CT ) ( n ) repeats was used to develop primer pairs ( PPs ) flanking SSRs and assess PP functionality across different forage , cereal , and turf grass species .
[ Sen. 4, subscore: 1.00 ]: A total of 511 PPs were developed and assessed for their utility in six different grass species .
[ Sen. 5, subscore: 1.00 ]: The parents and a subset of a tall fescue mapping population were used to select PPs for mapping in tall fescue .
[ Sen. 6, subscore: 1.00 ]: Survey results revealed that 48% ( in rice ) to 66% ( in tall fescue ) of the PPs produced clean SSR-type amplification products in different grass species .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 1.00 |
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| Title: Effects of signaling molecules , protein phosphatase inhibitors and blast pathogen ( Magnaporthe grisea ) on the mRNA level of a rice ( Oryza sativa L ) phospholipid hydroperoxide glutathione peroxidase ( OsPHGPX ) gene in seedling leaves .
| | Author: Agrawal GK Rakwal R Jwa NS Agrawal VP .
| | Journal: Gene Citation: V : 283 ( 1-2 ) P : 227-36 Year: 2002 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11867229 Accession (PMID): 11867229 | | Abstract: With a specific focus on rice self-defense response ( s ) , the effects of global signaling molecules , jasmonic acid ( JA ) , salicylic acid ( SA ) , abscisic acid ( ABA ) , and ethylene ( using the ethylene generator , ethephon ) , and protein phosphatase ( PP ) inhibitors , cantharidin and endothall on expression of a rice phospholipid hydroperoxide glutathione peroxidase ( OsPHGPX ) gene in rice seedling leaves were investigated .
We provide first evidence for a potent up-regulation of the OsPHGPX mRNA accumulation by these signaling molecules and PP inhibitors that strongly suggest its potential role in defense/stress .
The OsPHGPX gene also showed a weak constitutive expression and responsiveness to cut .
These inductions were influenced by light signal ( s ) , and did not show a requirement for de novo synthesized protein factor ( s ) .
A potential interaction amongst these signaling molecules , especially JA , SA , ABA and kinetin , in modulating the OsPHGPX expression was found .
The blast pathogen , Magnaporthe grisea also elicited the accumulation of OsPHGPX mRNA in leaves .
This is a first systematic report in rice ( and in plants ) demonstrating the inducible nature ( and expression ) of the OsPHGPX gene by a variety of defense/stress-related stimuli , and modulation by the PPs of the kinase-signaling cascade ( s ) . | Matching Sentences:
[ Sen. 7, subscore: 1.00 ]: This is a first systematic report in rice ( and in plants ) demonstrating the inducible nature ( and expression ) of the OsPHGPX gene by a variety of defense/stress-related stimuli , and modulation by the PPs of the kinase-signaling cascade ( s ) .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 1.00 |
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| Title: [ Inducible expression of OsEBP-89 gene in rice . ] | | Author: Shen H Yang HJ Wang ZY .
| | Journal: Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao Citation: V : 30 ( 1 ) P : 87-93 Year: 2004 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub15583414 Accession (PMID): 15583414 | | Abstract: OsEBP-89 gene was an EREBP ( ethylene responsive elements binding protein ) transcription factor from rice ( Oryza sativa ) .
Northern blot analysis revealed that the expression of OsEBP-89 gene can be induced by ACC , 2 , 4-D , ABA , BR , JA , GA , 6-BA and salt .
We found an ethylene responsive element-like ERE ( ethylene responsive element ) , named IVC box , in the promoter region ( -552 to -510 ) of OsEBP-89 gene .
EMSA results showed the IVC box could specifically bind with nuclear proteins extracted from immature rice seeds .
When the rice suspension cell harboring IVC/35S mini-promoter ( -46 ) /GUS chimeric construct ( pIVC/GUS ) was treated by ACC , GUS activity could be induced .
However , two plasmids with OsEBP-89 promoter/GUS ( pPSG ) and IVC box-deleted OsEBP-89 promoter/GUS ( pSphSG ) were transformed to rice , when both transgenic suspension cell treated with ACC the GUS expression was also inducible .
This result indicated that there are more than one ethylene-responsive elements located in the promoter region of the OsEBP-89 gene . | Matching Sentences:
[ Sen. 6, subscore: 1.00 ]: However , two plasmids with OsEBP-89 promoter/GUS ( pPSG ) and IVC box-deleted OsEBP-89 promoter/GUS ( pSphSG ) were transformed to rice , when both transgenic suspension cell treated with ACC the GUS expression was also inducible .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
