49 results about "Plant senescence" patented technology

The invention relates to a plant growth regulation composition containing plant activator protein. The composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is selected from the plant activator protein; the active ingredient B is selected from any one of compounds as follows: benzyl aminopurine, brassinolide, indoleacetic acid, harpin protein and gibberellic acid. The composition is mainly used for increasing the plant chlorophyll content, keeping plants green, preventing plant senescence, promoting root development and effective absorption of crops on fertilizers, assisting in good growth of weak parts of the crops, enhancing the absorption of the plants on water and the fertilizers and regulating the balance of the water in the plants so as to improve the drought resistance and the cold resistance of the plants.

The invention belongs to the technical field of gene engineering and discloses a rice senescence control gene OsCKX11 and application thereof. An amino acid sequence of the rice leaf senescence control gene OsCKX11 and an amino acid sequence shown as SEQ ID NO.2 are homological by at least 70%. By site-directed mutagenesis of rice cytokinin oxidase coding gene OsCKX11 and mutant phenotypic changeanalysis, the fact that the gene functional deficiency results in rice leaf senescence delaying; in certain premature senescence cultivation varieties, knocking out OsCKX11 by the gene engineering technology enables purposive regulation of a plant senescence process, yield increasing is realized by regulation of a plant population development stage, and a significant application value is achieved.

The invention discloses application of melatonin in delaying paddy leaf senescence and tolerating salt. The invention sets forth application of melatonin in delaying plant senescence. The plant senescence specifically can be salt-induced plant senescence and / or dark-induced plant senescence and / or age-mediated plant senescence. The plant senescence specifically can be embodied by (a) and / or (b) and / or (c) and / or (d) and / or (e) below: (a) plant senescence; (b) leaf senescence; (c) cell death; (d) leaf cell death; and (e) leaf photosynthetic rate decline. The application is helpful to deeply understanding a melatonin-mediated senescence control signal network, meanwhile, provides effective reference and help for prevention and control of senescence in agriculture, horticulture and flowers, and has potential application value in high-yield molecular breeding and preservation and transportation of harvested vegetables and flowers.

The invention relates to a plant growth regulation composition containing triacontanol. The plant growth regulation composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is selected from triacontanol, and the active ingredient B is selected from any one of the following compounds: benzyl aminopurine, brassinolide, diethylaminoethyl hexanoate and humic acid. The composition is mainly used for increasing the plant chlorophyll content, keeping plants green, preventing plant senescence, promoting root development and effective absorption of crops on fertilizers, assisting in good growth of weak parts of the crops, enhancing the absorption of the plants on water and the fertilizers and regulating the balance of water in the plants so as to improve the drought resistance and the cold resistance of the plants.

The present invention relates to a novel SGR (STAY-GREEN) gene participating in chlorophyll catabolism during plant senescence, thereby causing leaf yellowing, a method for preparing stay-green transgenic plants maintaining greenness during leaf senescence, which being characterized by mutating the SGR gene, suppressing the expression of the SGR gene, or deactivating the SGR protein which is encoded by the SGR gene, and stay-green mutant plants produced by said method. According to the present invention, leaf greenness can be maintained for a long time by mutating the SGR gene, suppressing the expression of the SGR gene, or inactivating the protein encoded by the SGR gene, thereby preventing leaf yellowing of plants in yellowing plant caused by chlorophyll catabolism during leaf senescence.

Disclosed herein is a novel gene which is isolated from Arabidopsis thaliana and shows senescence-specific expression. The expression of the gene is under the regulation of a promoter which is also disclosed herein. The gene in combination with the promoter can be utilized at the molecular level to control plant senescence in an environmentally friendly manner.

The invention belongs to the technical field of plant genetic engineering and particularly relates to isolation and cloning, functional verification and application of a GhTZF1 gene separated from cotton. A cDAN (complementary Deoxyribonucleic acid) sequence of the cloned GhTZF1 disclosed by the invention is shown as SEQ ID NO:1; and an amino acid sequence of a coding gene of the GhTZF1 is shown as SEQ ID NO:2. The invention also discloses application of the gene to improvement on drought tolerance of arabidopsis thaliana and delay on plant senescence under the drought stress.

The present invention provides an application of a physcomitrella patens ATG3 gene in plant senescence and salt tolerance stress, and relates to the technical field of gene application. A nucleotide sequence of the physcomitrella patens ATG3 gene is shown in SEQ ID NO.1. Compared with wild type, the physcomitrella patens ATG3 gene mutant is accelerated in senescence under normal culture conditionsand reduced in salt tolerance stress, and can be used for research on physcomitrella patens in the plant senescence and salt tolerance traits.

Disclosed is a method for promoting lupin pod bearing and improving the seed yield.According to the method, the seed yield of lupin is improved through low-temperature vernalization and soil pH value adjustment with the combination of humic acid fertilizer application, light treatment, temperature adjustment and reagent application of a flowering phase and a pod bearing period.The method comprises the main steps that 1, seeds are soaked with distilled water for 6 h, and intermittent low-temperature treatment is performed for 15-20 d; 2, potted nutrition soil is mixed with sulfur powder to lower the pH value; 3, 4 g of compound fertilizer is applied five times in each pot within the growth period, and 3 g of humic acid fertilizer is applied three times in each pot; 4, 13.5 h of illumination is ensured every day on the last ten days of January; 5, temperature is increased in the earlier growth stage, and cooling is performed at the later stage; 6, 500 mg / L monopotassium phosphate and a 0.1% borax mixed solution are sprayed two times in the flowering stage; 7, after pod bearing, 300 mg / L monopotassium phosphate, 10 mg / L heteroauxin and a 0.1% borax mixed solution are applied five times.By adopting the method for lupin planting, flowering can be achieved ahead of time, plant senescence is slowed down, pod bearing is promoted, the seed yield is improved, and the technical problem that the seed yield of lupin is low is solved.

The invention belongs to the technical field of plant genetic engineering and particularly relates to isolation and cloning, functional verification and application of a GhTZF1 gene separated from cotton. A cDAN (complementary Deoxyribonucleic acid) sequence of the cloned GhTZF1 disclosed by the invention is shown as SEQ ID NO:1; and an amino acid sequence of a coding gene of the GhTZF1 is shown as SEQ ID NO:2. The invention also discloses application of the gene to improvement on drought tolerance of arabidopsis thaliana and delay on plant senescence under the drought stress.

The present invention proposes an AtPep1 mature polypeptide plant aging accelerator and its preparation method and application, belonging to the field of plant aging accelerators. The AtPep1 mature polypeptide plant aging accelerator uses AtPep1 mature polypeptide as the main functional component. The AtPep1 mature polypeptide has the following Amino acid sequence: A‑T‑K‑V‑K‑A‑K‑Q‑R‑G‑K‑E‑K‑V‑S‑S‑G‑R‑P‑G‑Q‑H‑N. The plant senescence accelerator provided by the invention can accelerate the senescence of leaves of plants and accelerate the senescence without other additional adverse performances, and has strong operability in the field.

The invention belongs to the technical field of gene engineering, and particularly discloses an application of an OsPSE1 gene in plant senescence regulation. According to the application of the OsPSE1 gene in plant senescence regulation, one premature aging rice plant is utilized, the OsPSE1 gene is cloned with a map-based cloning method, functional analysis is performed, and the result shows that the premature aging rice can return to normal through expression of the OsPSE1 gene in premature aging rice, and plant senescence can be further delayed and rice biomass accumulation is increased through overexpression of the OsPSE1 gene in normal rice; and the result proves that the OsPSE1 gene has better application potential in the aspect of increase of crop yield. The gene engineering means is utilized to regulate and control the expression level of the OsPSE1 gene for molecular breeding, and the OsPSE1 gene has potential application value in the aspect of increase of crop yield.

The present invention proposes an IDL7 mature polypeptide plant aging accelerator, its preparation method and application, and belongs to the field of plant aging accelerators. The IDL7 mature polypeptide plant aging accelerator uses IDL7 mature polypeptide as the main functional component. The IDL7 mature polypeptide has the following properties: Amino acid sequence: F‑G‑S‑L‑V‑L‑N‑A‑L‑P‑K‑G‑S‑R‑P‑G‑S‑G‑P‑S‑K‑K‑T‑N . The plant senescence accelerator provided by the invention can accelerate the senescence of leaves of plants and accelerate the senescence without other additional adverse performances, and has strong operability in the field.

The invention proposes an application of quercetin in a plant senescence accelerator, which belongs to the field of plant senescence accelerators and applications thereof. Quercetin can be prepared into a plant senescence accelerator and applied in actual production to accelerate the growth of plants, especially crop leaves. the aging process. The quercetin plant aging accelerator is prepared by mixing quercetin mother liquor and 1 / 2MS solution of 2-(N-morpholine)ethanesulfonic acid. The invention can adopt the application mode of direct spraying to accelerate the senescence process of plant leaves without causing additional adverse reactions to plants.