8 results about "Photorespiration" patented technology

Presented herein are plants with altered photorespiratory characteristics. Disruption of transport proteins involved in shuttling glycolate and / or glycerate results in reductions in photosynthetic rates, reduced plant growth and alterations in gene expression and photosynthetic metabolite profiles. Such disruptions are also combined with introduced genes expressing components of alternate photorespiratory enzyme pathways to increase photosynthetic efficiency.

Presented herein are plants with altered photorespiratory characteristics. Disruption of transport proteins involved in shuttling glycolate and / or glycerate results in reductions in photosynthetic rates, reduced plant growth and alterations in gene expression and photosynthetic metabolite profiles. Such disruptions are also combined with introduced genes expressing components of alternate photorespiratory enzyme pathways to increase photosynthetic efficiency.

The invention relates to the technical field of agricultural biological agents and foliage dressing, in particular to a novel fertilizer which comprises the following components in percentage by mass: 30% of microalgae biogenic peptide, 10% of yeast sugar, 5% of an adsorbent, 1% of an activating agent, 1% of a colloidal agent, 2% of a water absorbent, 1% of a complexing agent and 50% of purified water. In an early rice test, the yield is increased by 19.3%-29.1% compared with that of CK after the photosynthetic carbon fertilizer is sprayed, the yield is superior to that of a conventional photosynthetic carbon fertilizer, the CO2 concentration around crops is increased to 580-1000 ppm, photosynthesis is enhanced in the daytime, light breathing is inhibited at night, more carbohydrates are accumulated, chemical fertilizer application can be reduced, the pesticide residue and heavy metal content can be reduced, the quality of agricultural products is improved, pest reproduction is inhibited through the high CO2 concentration, the stress resistance of the crops is enhanced, and the yield of the crops is increased. And the fertilizer can be used for planting, livestock raising and aquatic products, so that multiple purposes of one fertilizer are realized.

The application discloses a rice large-scale metabolic regulation sub-DGP1 and crop metabolic quality design. The application finds that a rice DGP1 family protein TIGR01589 domain targets multiple metabolic enzymes and promotes the transport of the metabolic enzymes to the nucleus; the domain also interferes with the light respiration pathway by changing the composition of the glycine decarboxylase complex in mitochondria. Based on the molecular mechanism of DGP1, a chimeric protein ST containing the domain and coupled with a chloroplast localization signal is designed to realize the genetic engineering modification of Chinese cabbage. The modification strategy can not only guide the substrate flow of the central glycolytic pathway to flavonoid biosynthesis, but also promote the accumulation of photosynthetic product-derived sugars in leaves.

The application relates to an application of a rice Os-ER-ANT1 gene. The nucleotide sequence of the gene is shown in SEQ ID No. 1, the encoded amino acid sequence is shown in SEQ ID No. 2, the gene can regulate rice photorespiration amino acid metabolism, can be used for rice amino acid metabolism improvement breeding, and provides a new genetic resource for improving crop quality and yield.

This invention belongs to the fields of plant genetic engineering and crop genetic breeding technology, and discloses a NbPGLP1.2 gene, method, and the application of its encoded protein in regulating seed germination in *Nicotiana benthamiana*. The amino acid sequence of the NbPGLP1.2 protein is shown in SEQ ID NO.2, or is a derived protein with at least 90% sequence identity with SEQ ID NO.2 and possessing seed germination-promoting function. This invention reveals for the first time the important regulatory function of the key photorespiration enzyme gene NbPGLP1.2 in the seed germination stage, and its application in regulating plant seed germination and seedling establishment. This not only broadens our understanding of the biological functions of the PGLP1 family of genes, but also provides novel gene targets and germplasm resources for improving crop seed vigor and seedling establishment through molecular breeding methods, possessing significant theoretical value and broad application prospects.

The invention discloses a low-light respiratory metabolism module RBCS-NOX and an application of the low-light respiratory metabolism module RBCS-NOX in improving the photosynthetic efficiency of C3 plants. The low-light respiratory metabolism module RBCS-NOX is a fusion protein which is formed by carrying out fusion expression on a Rubisco small subunit RbcS protein and a water-producing type NAD (P) H oxidase (NOX). The module is introduced into C3 plant rice, and the result shows that the photosynthetic rate of an RBCS-NOX transgenic plant is improved, the light respiration rate is reduced, and the ratio of glycine to serine is reduced. The photosynthetic efficiency of the rice is expected to be improved, the correlation mechanism of the photosynthetic efficiency and photorespiration of C3 plants is further clarified, the research results of the gene can provide key technical reserve for high-photosynthetic-efficiency improvement of important crops in China, and the gene has far-reaching significance for deeply clarification of the high-photosynthetic-efficiency mechanism of the crops and crop production.

Presented herein are plants with altered photorespiratory characteristics. Disruption of transport proteins involved in shuttling glycolate and / or glycerate results in reductions in photosynthetic rates, reduced plant growth and alterations in gene expression and photosynthetic metabolite profiles. Such disruptions are also combined with introduced genes expressing components of alternate photorespiratory enzyme pathways to increase photosynthetic efficiency.