Abstract: There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.

Abstract: A plurality of access points configured to communicate with a subordinate wireless LAN terminal, an information collecting device configured to collect a frame respectively transmitted and received between the plurality of access points and the wireless LAN terminal, and extract information on communication quality of an access point of the plurality of access points from a header of the frame, and an information collecting server configured to acquire the information on the communication quality of the access point from the information collecting device, analyze the information to determine whether the communication quality is good or bad for each of the plurality of access points, and execute processing of externally displaying or notifying a result that is determined are included.

Abstract: A fermentation state monitoring apparatus includes: a terahertz wave generation element that outputs inspection light using a terahertz wave to a fermented food under fermentation in a sealed product container; a terahertz wave detection element that detects return light of the inspection light reflected by the fermented food in the product container; and a determination unit that determines a fermentation progress of the fermented food based on an index value including a reflectance of the return light with respect to the inspection light or an absorption coefficient of the return light with respect to the inspection light.

Abstract: A fermentation state monitoring apparatus includes: a terahertz wave generation element that outputs inspection light using a terahertz wave to a fermented food under fermentation in a sealed product container; a terahertz wave detection element that detects return light of the inspection light reflected by the fermented food in the product container; and a determination unit that determines a fermentation progress of the fermented food based on an index value including a reflectance of the return light with respect to the inspection light or an absorption coefficient of the return light with respect to the inspection light.

Abstract: A method of producing a modified monocotyledonous plant having a desired character is provided. The method comprises isolating a gene containing a nucleic acid hybridizable to a nucleic acid indicated by SEQ ID NO. 1 under stringent conditions, and inhibiting expression of the isolated gene.

Abstract: DNA having promoter activity for strongly expressing an exogenous gene specifically in plant tissue (particularly, tissue having active cell prolifaration) is provided. The DNA is a rice OsEF1?1 gene promoter which has a sequence indicated by SEQ ID NO. 1, or a portion of said sequence whose promoter activity is equivalent to that of said sequence indicated by SEQ ID No. 1. An expression vector containing the promoter and an exogenous gene expressibly linked to the promoter is also provided. A plant cell transformed with the expression vector, a plant regenerated from the plant cell, a progeny of the plant, a propagator of the plant, and a seed obtained from the progeny are also provided. A method for introducing an exogenous gene into plants using an expression vector is also provided.

Abstract: DNA having promoter activity for expressing an exogenous gene specifically in vegetative growth tissue (particularly, stems and/or leaves) is provided. The DNA is a rice OsGA3ox2 gene promoter which has a sequence indicated by SEQ ID NO. 1, or a portion of said sequence whose promoter activity is equivalent to that of said sequence indicated by SEQ ID No. 1. An expression vector containing an exogenous gene expressibly linked to the promoter is also provided. A plant cell transformed with the expression vector, a plant regenerated from the plant cell, a progeny of the plant, a propagator of the plant, and a seed obtained from the progeny are also provided. A method for introducing an exogenous gene into plants using an expression vector is also provided.

Abstract: An objective of the present invention is to provide DNAs encoding novel plant proteins having a gibberellin (GA) 2-oxidation activity. Another objective is to modify plant height by utilizing these DNAs for regulating the gibberellin content. PCR was performed using degenerate primers, and novel OsGA2ox2 and OsGA2ox3 genes were obtained. The present inventors discovered that unlike products of other GA2-oxidases such as OsGA2ox1, the product of OsGA2ox3 catalyzes the two-step oxidation of GA20 to GA29 and then of GA29 to GA29-catabolite. In addition, the present inventors also found that the growth of the transgenic rice plants expressing OsGA2ox3 was suppressed as compared to control plants.

Abstract: DNA having promoter activity for strongly expressing an exogenous gene specifically in plant tissue (particularly, tissue having active cell prolifaration) is provided. The DNA is a rice OsEF1&bgr;1 gene promoter which has a sequence indicated by SEQ ID NO. 1, or a portion of said sequence whose promoter activity is equivalent to that of said sequence indicated by SEQ ID No. 1. An expression vector containing the promoter and an exogenous gene expressibly linked to the promoter is also provided. A plant cell transformed with the expression vector, a plant regenerated from the plant cell, a progeny of the plant, a propagator of the plant, and a seed obtained from the progeny are also provided. A method for introducing an exogenous gene into plants using an expression vector is also provided.

Abstract: DNA having promoter activity for expressing an exogenous gene specifically in vegetative growth tissue (particularly, stems and/or leaves) is provided. The DNA is a rice OsGA3ox2 gene promoter which has a sequence indicated by SEQ ID NO. 1, or a portion of said sequence whose promoter activity is equivalent to that of said sequence indicated by SEQ ID No. 1. An expression vector containing an exogenous gene expressibly linked to the promoter is also provided. A plant cell transformed with the expression vector, a plant regenerated from the plant cell, a progeny of the plant, a propagator of the plant, and a seed obtained from the progeny are also provided. A method for introducing an exogenous gene into plants using an expression vector is also provided.

Abstract: A method of producing a modified monocotyledonous plant having a desired character is provided. The method comprises isolating a gene containing a nucleic acid hybridizable to a nucleic acid indicated by SEQ ID NO. 1 under stringent conditions, and inhibiting expression of the isolated gene.

Abstract: An objective of the present invention is to provide DNAs encoding novel plant proteins having a gibberellin (GA) 2-oxidation activity. Another objective is to modify plant height by utilizing these DNAs for regulating the gibberellin content.