The suppressed telomere clustering in homologous pairing aberration in rice meiosis 1 (pair1) zygo1 and rice completion of meiotic recombination (Oscom1) zygo1 double mutants, together with the altered localization of OsSAD1 (a SUN protein associated with the nuclear envelope) in zygo1 showed that ZYGO1 has a significant function in bouquet formation
Therefore, we propose that ZYGO1 mediates bouquet formation to efficiently promote homolog pairing, synapsis, and CO formation in rice meiosis
Furthermore, crossover (CO) formation was disturbed, and foci of Human enhancer of invasion 10 (HEI10) were restricted to the partially-synapsed chromosome regions, indicating that CO reduction might be caused by the failure of full-length chromosome alignment in zygo1
Virus-induced gene silencing of a ZN homolog in Nicotiana benthamiana causes leaf variegation with sporadic green/yellow sectors, indicating that ZN is essential for chloroplast biogenesis during early leaf development
Together, we propose that ZN is required for protecting developing chloroplasts, especially during the assembly of thylakoid protein complexes, from incidental light after darkness
OsMTP11, ZN, Identification of a rice metal tolerance protein OsMTP11 as a manganese transporter., DNA methylation assays of genomic DNA in rice treated with Cd, Zn, Ni, and Mn revealed that decreased DNA methylation levels were present in the OsMTP11 promoter region, which was consistent with OsMTP11 induced-expression patterns resulting from heavy metal stress
MER3~RCK, ZIP4~SPO22, ZIP4 in homologous chromosome synapsis and crossover formation in rice meiosis, Double-mutant analyses show that zip4 mer3 displays a greater decrease in the mean number of chiasmata than either of the zip4 or mer3 single mutants, suggesting that ZIP4 and MER3 work cooperatively to promote CO formation but their individual contributions are not completely identical in rice
We previously identified a salt and drought stress-responsive TFIIIA-type zinc finger protein gene ZFP252 from rice
We found that overexpression of ZFP252 in rice increased the amount of free proline and soluble sugars, elevated the expression of stress defense genes and enhanced rice tolerance to salt and drought stresses, as compared with ZFP252 antisense and non-transgenic plants
Our findings suggest that ZFP252 plays an important role in rice response to salt and drought stresses and is useful in engineering crop plants with enhanced tolerance to salt and drought stresses
Overexpression of a TFIIIA-type zinc finger protein gene ZFP252 enhances drought and salt tolerance in rice (Oryza sativa L.)
These results indicated that the RZF71 may play an important role in rice responses to salt and osmotic stresses as a transcription factor
The semi-quantitative RT-PCR assay showed RZF71 was strongly induced by high-salinity and 20% PEG6000 treatments, but not regulated by low temperature and ABA (abscisic acid) treatments
The expression profiling showed that RZF71 was constitutively expressed in roots, culms, leaves, and flowering spikes
A rice zinc-finger protein gene, RZF71, encoding the C2H2-type zinc-finger transcription factor was isolated from rice
Overproduction of ZFP245 enhanced the activities of reactive oxygen species-scavenging enzymes under stress conditions and increased the tolerance of rice seedlings to oxidative stress
However, ZFP245 was not regulated by high salt or abscisic acid treatment
The semi-quantitative-RT-PCR assay revealed ZFP245 was strongly induced after 6 h exposure to cold and drought stresses, and then reduced to the baseline
Taken together, ZFP245, as the first identified C2H2-type zinc finger protein involved in stress response in monocots probably plays a role as a transcription regulator in plant cold and drought responses through an ABA-independent pathway
A C2H2-type zinc finger protein gene ZFP245 was cloned by RT-PCR approach from cold treated rice seedlings
Our data suggest that ZFP245 may contribute to the tolerance of rice plants to cold and drought stresses by regulating proline levels and reactive oxygen species-scavenging activities, and therefore may be useful for developing transgenic crops with enhanced tolerance to abiotic stress
ZFP245 is a cold- and drought-responsive gene that encodes a zinc finger protein in rice
Transgenic rice plants overexpressing ZFP245 were generated and found to display high tolerance to cold and drought stresses
Increased tolerance of rice to cold, drought and oxidative stresses mediated by the overexpression of a gene that encodes the zinc finger protein ZFP245
Tissue expression analysis showed that ZFP245 was constitutively expressed in various rice tissues including roots, stems, leaves and spikes
Here we report a novel A20/AN1-type zinc finger protein ZFP185 involved in GA and ABA signaling in the regulation of growth and stress response
Our study suggests that ZFP185 regulates plant growth and stress responses by affecting GA and ABA biosynthesis in rice
Moreover, it was found that ZFP185, unlike previously known A20/AN1-type zinc finger genes, increases sensitivity to drought, cold, and salt stresses, implying the negative role of ZFP185 in stress tolerance
Besides GA, overexpression of ZFP185 decreased ABA content and expression of several ABA biosynthesis-related genes
The application of exogenous GA3 can fully rescue the semi-dwarfism phenotype of ZFP185 overexpressing plants, suggesting the negative role of ZFP185 in GA biosynthesis
ZFP185 was localized in the cytoplasm and lacked transcriptional activation potential
Overexpression of ZFP182 significantly enhanced multiple abiotic stress tolerances, including salt, cold and drought tolerances in transgenic rice
The expression analysis showed that ZFP182 gene was constitutively expressed in leaves, culms, roots and spikes at the adult rice plants, and markedly induced in the seedlings by cold (4 degrees C), 150 mM NaCl and 0
Nipponbare) C(2) H(2) -type ZFP ZFP182 in ABA-induced antioxidant defense and the relationship between ZFP182 and two rice MAPKs, OsMPK1 and OsMPK5 in ABA signaling were investigated
These results indicate that ZFP182 is required for ABA-induced antioxidant defense and the expression of ZFP182 is regulated by rice MAPKs in ABA signaling
The C2H2-type zinc finger protein ZFP182 is involved in abscisic acid-induced antioxidant defense in rice
Expression of ZFP182 in transgenic tobacco and overexpression in rice increased plant tolerance to salt stress
These results demonstrated that ZFP182 might be involved in plant responses to salt stress
ABA treatment induced the increases in the expression of ZFP182, OsMPK1 and OsMPK5, and the activities of superoxide dismutase (SOD) and ascorbate peroxidase (APX) in rice leaves
Besides, OsMPK1 and OsMPK5 were shown to be required for the up-regulation in the expression of ZFP182 in ABA signaling, but ZFP182 did not mediate the ABA-induced up-regulation in the expression of OsMPK1 and OsMPK5
The ZFP179 transgenic rice exhibited significantly increased tolerance to oxidative stress, the reactive oxygen species (ROS)-scavenging ability, and expression levels of a number of stress-related genes, including OsDREB2A, OsP5CS OsProT, and OsLea3 under salt stress
Our studies suggest that ZFP179 plays a crucial role in the plant response to salt stress, and is useful in developing transgenic crops with enhanced tolerance to salt stress
The real-time RT-PCR analysis showed that ZFP179 was highly expressed in immature spikes, and markedly induced in the seedlings by NaCl, PEG 6000, and ABA treatments
Through microarray analysis, a salt-responsive zinc finger protein gene ZFP179 was identified and subsequently cloned from rice seedlings
Overexpression of ZFP179 in rice increased salt tolerance and the transgenic seedlings showed hypersensitivity to exogenous ABA
These results suggested that ZFP177 might play crucial but differential roles in plant responses to various abiotic stresses
Through microarray analysis, it was found that four genes (ZFP177, ZFP181, ZFP176, ZFP173), two genes (ZFP181 and ZFP176) and one gene (ZFP157) were significantly induced by cold, drought and H(2)O(2) treatments, respectively
Overexpression of ZFP177 in tobacco conferred tolerance of transgenic plants to both low and high temperature stresses, but increased sensitivity to salt and drought stresses
Further expression analysis showed that ZFP177 was responsive to both cold and heat stresses, but down-regulated by salt
Expression analysis of rice A20/AN1-type zinc finger genes and characterization of ZFP177 that contributes to temperature stress tolerance
The subcellular localization assay indicated that ZFP177 was localized in cytoplasm in tobacco leaf and root cells