4 results about "Plant senescence" patented technology

The invention discloses an application of a broccoli BoCyt f gene in regulating and controlling plant senescence, and is characterized in that the nucleotide sequence of the BoCyt f gene is shown as SEQ ID NO.1. The function of BoCyt f is verified in a transgenic overexpression mode, and overexpression of the BoCyt f gene in arabidopsis thaliana can significantly promote leaf yellowing and senescence and accelerate chlorophyll degradation, so that the Broccoli BoCyt f gene can be used for regulating and controlling plant senescence. Active oxygen accumulation is induced, and PCD related gene expression is up-regulated; the invention has the advantages that the forward regulation effect of the BoCyt f gene in plant PCD and aging is defined for the first time, and a new target gene is provided for plant anti-aging breeding and postharvest preservation technology.

The invention provides a BrRAV8 gene for delaying flowering cabbage leaf senescence and application of the BrRAV8 gene. A nucleotide sequence of the BrRAV8 gene is shown as SEQ ID NO.1, or has a nucleotide sequence complementary with the sequence shown as SEQ ID NO.1, or has 75% or more homology with the nucleotide sequence shown as SEQ ID NO.1, and the BrRAV8 gene can also be coded to participate in plant senescence regulation and control, and can be applied to plant senescence regulation and control. The invention particularly relates to a DNA molecule for inhibiting leaf senescence protein. The gene BrRAV8 can participate in the senescence regulation and control process, the senescence of leaves of the flowering cabbage is inhibited, and the shelf life of the harvested flowering cabbage is prolonged.

The application belongs to the technical field of microorganisms, and specifically discloses a kind of Microbacterium arborescens QHHQ09-2, a microbial agent thereof and application. The Microbacterium arborescens QHHQ09-2 of the application has a preservation number of CGMCC No.33708. The Microbacterium arborescens has the functions of IAA production, nitrogen fixation and alkali tolerance, can promote plant growth and development, slow down the decomposition or transfer of chlorophyll in plant leaves, delay plant senescence, and effectively inhibit Gibberella zeae.

The application discloses application of a soybean GmBBX13b gene in delaying leaf and plant senescence, wherein a nucleotide sequence of the soybean GmBBX13b gene is shown as SEQ ID NO. 1, and an amino acid sequence of a soybean GmBBX13b protein is shown as SEQ ID NO. 2. The application creates a transgenic soybean strain with overexpression of the GmBBX13b gene, and finds that, compared with a wild type, the GmBBX13b transgenic soybean is significantly delayed in flowering time, leaf and plant senescence time, and the number of branches is obviously increased, and the plant height and the number of stem nodes are also significantly increased. Therefore, overexpression of the GmBBX13b gene in soybean is one of effective ways to change the plant type of soybean and delay the flowering time, leaf and plant senescence of soybean, and has important production and theoretical significance for breeding of superior soybean varieties and development of germplasm resources.