摘要:
This invention is about the functionally hyperactive light signal related molecule, HFR1-ΔN105, of which the nucleic acids that encode N-terminal 105 amino acid residues were deleted. HFR1 as a bHLH transcription factor functions in a subset of phytochrome A signaling cascade and it was reported to be regulated negatively by COP1. Experiments with a HFR1-ΔN105 overexpressing plant revealed that the deletion of N-terminal amino acids makes the HFR1 more active in photomorphogenic development such as germination and de-etiolation. In addition, the transgenic plants showed hypersensitive photo-responses in the inhibition of hypocotyl elongation, dependently on another positive element of light signaling, a bZIP protein, HY5. The end-of-day far-red light response and petiole elongation were suppressed in the HFR1-ΔN105 overexpressing plants. These results suggest that N-terminal region of HFR1 negatively regulate HFR1 function and that HFR1-ΔN105 is hyperactive.
摘要:
The present invention provides a nucleic acid molecule isolated from the 5′ untranscribed region of a translationally controlled tumor protein (TCTP) gene from Arabidopsis. The nucleic acid molecule, referred to as TCTP promoter in the present invention, directs the high-level expression of a reporter gene that is properly placed under its control. The TCTP promoter initiates and regulates the gene expression to a level that is comparable to those by the currently available promoters in plant genetic engineering. A minimum of 300-bp region is enough for fill regulatory activity. The TCTP promoter is functional in all plant tissues tested with the highest activity in the meristem tissue of root tip. The present invention can be utilized to express useful genes to a high level in agronomically important plants.
摘要:
The present invention provides transgenic plants and plant cells thereof which have been transformed with the soybean calmodulin isoform (SCaM5) gene to exhibit greatly enhanced resistance to a wide spectrum of plant pathogens. The present invention also provides the expression vector containing SCaM5 gene and to host cells into which the gene in the expression vector has been introduced to plant pathogens-resistant plants. Transgenic plants expressing a heterologous SCaM5 gene show increased resistance to fungi, bacteria and viruses which normally infect the plants.
摘要:
A stable pepper transformation was established using Agrobacterium mediated method. Pepper plants were transformed with PepEST or PepDef gene, where the expression of the nucleic acid sequence in the plant resulted in increased resistance to fungal infection as compared to the wild type plant. Provided are agricultural products including seeds produced by the transgenic plants. Also provided are vectors and host cells containing the nucleic acids coding PepEST and PepDef, respectively.
摘要:
This invention relates to dual roles of the pepper esterase protein as a biocontrol agent that can elicit defense reactions in plant cells and as direct fungal inhibitor that can block fungal penetration into plant cells. The possible enzymatic actions of the PepEST protein were elucidated in both fungus and plant to gain insight into the molecular mechanisms involved in the fungal resistance. Exogenously treated PepEST protein on the unripe pepper fruits decomposed the cuticles of the fruits and released glycerol and 9-octadecenamide. The treatment resulted in the massive generation of hydrogen peroxide in the unripe pepper fruit and simultaneously elicited the expression of defense-related genes in both absence and presence of the fungus.
摘要:
This invention relates to dual roles of the pepper esterase protein as a biocontrol agent that can elicit defense reactions in plant cells and as direct fungal inhibitor that can block fungal penetration into plant cells. The possible enzymatic actions of the PepEST protein were elucidated in both fungus and plant to gain insight into the molecular mechanisms involved in the fungal resistance. Exogenously treated PepEST protein on the unripe pepper fruits decomposed the cuticles of the fruits and released glycerol and 9-octadecenamide. The treatment resulted in the massive generation of hydrogen peroxide in the unripe pepper fruit and simultaneously elicited the expression of defense-related genes in both absence and presence of the fungus.
摘要:
This invention relates to a nucleic acid molecule encoding the catalytic subunit of a protein phosphatase (PP2AC-JD) that belongs to the PP2A family. The PP2AC-JD interacts with the phytochrome A, a primary photoreceptor in the light signal transduction in plants, in the photoperiodic control of flowering. The present invention also provides the methods and processes for generating transgenic higher plants transformed with said nucleic acid molecule to engineer flowing time of economically important crop plants.
摘要:
The present invention provides transgenic higher plants and transgenic plant cells thereof which have been transformed with a plant translationally controlled tumor protein (TCTP) gene to improve growth rate in a growth stage-dependent manner, especially in the earlier vegetative growth stage from seedlings to young plants. Also, the invention provides methods for engineering higher plants so that they can be more efficiently transformed with other transforming vector constructs. Further, provided are TCTP expression vectors which contain an uninterrupted coding region for the TCTP protein used to generate transgenic plants and cells thereof.