90 results about "Biotic stress" patented technology

The present disclosure provides compositions, kits, and systems comprising engineered bacteria and agricultural biologics, and methods of using the same to treat plants and improve one or more plant beneficial traits, such as plant yield, nutrient uptake, and resistance to abiotic or biological stress. Using the compositions, kits, and systems disclosed herein can further 5 reduce fertilizer usage. The present disclosure also proposes methods of treating plants using the engineered bacteria with agricultural biologics.

The invention discloses a small peptide for improving abiotic stress of tartary buckwheat and application of the small peptide, and relates to the technical field of biotechnology and botany, the small peptide is FtRALF6, and the amino acid sequence of the FtRALF6 is as shown in SEQ ID No.1. By exogenous application of the FtRALF6 small peptide, salt stress resistance, heavy metal stress resistance, cold stress resistance and heat stress resistance of the tartary buckwheat can be remarkably improved, normal growth and physiological functions of the tartary buckwheat under adversity are effectively maintained, and yield and quality are improved. The small peptide is small in molecular weight, easy to absorb, environment-friendly and large in application potential, the tartary buckwheat planting range can be expanded, the planting economic benefits are improved, and a new thought is provided for crop stress resistance research and technical development.

The invention relates to the technical field of marine ecological environment monitoring, in particular to a marine ecological environment assessment early warning system based on big data and AI, which comprises a multi-source data fusion module, a dynamic feature extraction module, a meteorological disturbance coefficient calculation module, an ecological index generation module and a coupling early warning generation module. Wherein the multi-source data fusion module is used for collecting multi-source data in real time; the dynamic feature extraction module is used for extracting 72-hour change gradients of the three types of core parameters; the meteorological disturbance coefficient calculation module is used for calculating and outputting a meteorological disturbance coefficient; the ecological index generation module is used for generating a water quality deterioration index and a biological stress index; and the coupling early warning generation module is used for outputting an ecological risk level signal. According to the method, meteorological interference is reduced in real time, water quality deterioration and biological stress indexes are subjected to weighted fusion, the marine ecological environment risk is accurately evaluated, and scientific support is provided for ecological protection and pollution early warning.

The invention provides a sugarcane ScGSTU10 gene with a stress resistance function, a protein and application, belongs to the technical field of biology, and particularly discloses application of the sugarcane ScGSTU10 gene in disease resistance, drought resistance, salt resistance and low temperature resistance. According to the invention, the biological stress and abiotic stress response of the ScGSTU10 are preliminarily explored, and a solid foundation is laid for deeply researching the function and the action mechanism of the gene in the process that the sugarcane responds to pathogenic bacteria stress and abiotic stress.

The invention provides a sugarcane ScGSTU8 gene with a stress resistance function, a protein and application, belongs to the technical field of biology, and particularly discloses application of the sugarcane ScGSTU8 gene in disease resistance, drought resistance, salt resistance and low temperature resistance. According to the invention, the biological stress and abiotic stress response of the ScGSTU8 are preliminarily explored, and a solid foundation is laid for deeply researching the function and the action mechanism of the gene in the pathogenic bacteria stress and abiotic stress response process of the sugarcane.

The invention belongs to the technical field of plant genetic engineering and molecular breeding, and particularly relates to application of a soybean GmUGT72E1 gene in regulation and control of soybean plant height and enhancement of resistance of soybeans to drought and alkali stress. Plant height is a key agronomic character influencing lodging resistance and photosynthetic efficiency of soybeans, drought and alkali stress are core abiotic stress factors restricting yield and quality of the soybeans, and the three factors jointly lead to remarkable global soybean yield reduction loss. Gene cloning, vector construction and transgenic function verification prove that overexpression of the GmUGT72E1 gene can reduce the plant height of soybeans by 15%-25%, meanwhile, the tolerance of the soybeans to drought and alkali stress is remarkably improved, the relative water content of leaves under the drought stress is increased by 25%-30% compared with that of wild type leaves, and chlorophyll under the alkali stress is increased by 40%-50% compared with that of the wild type leaves. According to the application disclosed by the invention, the dual regulation and control functions of the GmUGT72E1 gene are defined, key gene resources and technical support are provided for soybean dwarf stress-resistant collaborative improvement, dwarf stress-resistant soybean varieties can be cultivated by means of transgenosis, gene editing and the like, and the application has important agricultural application value.

The present invention relates to a method of preventing or alleviating the effect of abiotic stress in a plant, which involves applying to the plant, including plant seeds or to a plant growth medium, an effective amount of phenylalanine and / or any salt or solvate thereof and a seaweed extract.

Provided herein are compositions and methods to improve plant resistance to abiotic and biotic stress, thereby improving crop yield. Provided herein are compositions including zinc, copper, and an acid, where the acid is selected from citric acid, sulfuric acid, oxalic acid, humic acid, fulvic acid, boric acid, acetic acid, and a combination thereof. Certain embodiments optionally include ammonium sulfate. Compositions described herein have plant priming activity where the plant's defenses against abiotic and biotic stress are boosted.

Disclosed herein is a method of using resin acids as defense gene inducers for biotic stress in a plant. Also disclosed herein are a composition including rosin and a method of using the composition as a defense gene inducer for biotic stress in a plant.

The application belongs to the technical field of molecular plant pathology, and particularly relates to a peanut disease-resistant gene AhNHL24 and application thereof. Through whole genome identification and bioinformatics analysis, 45 NHL family genes (AhNHL) are identified in peanuts, and gene expression analysis shows that most of the AhNHL genes can respond to the induction of biological stress and abiotic stress. Gene disease resistance identification finds that transient overexpression of AhNHL14, AhNHL24 and AhNHL31 can significantly improve the resistance of tobacco and peanuts to Pseudomonas solanacearum, and the disease resistance of AhNHL24 is the strongest. Through transgenic tobacco heterologous overexpression of AhNHL24 and inoculation experiments, it is shown that the peanut and tobacco plants overexpressing AhNHL24 not only have significantly enhanced resistance to Pseudomonas solanacearum, but also have significantly enhanced resistance to Sclerotium rofsii. The application provides an important basis for the cultivation of plant (peanut and tobacco, etc.) broad-spectrum disease-resistant varieties.

The present invention relates to methods for improving plant growth, development and / or resistance to abiotic / biological stress.

The present application relates to the technical field of marine ecological environment monitoring, and particularly relates to a marine ecological environment assessment and early warning system based on big data and AI, comprising a multi-source data fusion module, a dynamic feature extraction module, a meteorological disturbance coefficient calculation module, an ecological index generation module and a coupling early warning generation module; wherein: the multi-source data fusion module is used for real-time collection of multi-source data; the dynamic feature extraction module is used for extraction of 72-hour change gradients of three types of core parameters; the meteorological disturbance coefficient calculation module is used for calculation and output of meteorological disturbance coefficients; the ecological index generation module is used for generation of water quality deterioration indexes and biological stress indexes; and the coupling early warning generation module is used for output of ecological risk grade signals. Through real-time reduction of meteorological interference and weighted fusion of water quality deterioration and biological stress indexes, the present application can accurately assess marine ecological environment risks and provide scientific support for ecological protection and pollution early warning.

The present invention relates to methods for improving plant growth, development and / or resistance to abiotic / biological stress.

Provided is an agent for improving abiotic stress tolerance in a plant, said agent being capable of further improving the effect of improving abiotic stress tolerance using a compound such as ergothioneine. The agent for improving abiotic stress tolerance of plants according to the present invention comprises: a first component that is a compound represented by formula (I), a tautomer thereof, or an agronomically acceptable salt thereof; and at least one second component selected from the group consisting of an amino acid, a peptide having a length of 2-10 amino acids, a betaine, an organic acid or a salt thereof, a nucleic acid base, a vitamin, and a sugar or a sugar alcohol. (In formula (I), R1 and R2 independently represent a hydrogen atom or an alkyl group having 1-4 carbon atoms, and R3, R4, and R5 independently represent an alkyl group having 1-4 carbon atoms)

The invention belongs to the technical field of molecular biotechnology and plant genetic engineering, and particularly relates to a grape MYB transcription factor VvMYB108 and application thereof. The invention provides an MYB transcription factor VvMYB108 for regulating and controlling biological stress in a postharvest storage process of grapes. An overexpression strain of the VvMYB108 in arabidopsis thaliana is utilized to find that the sensitivity of a VvMYB108 transgenic strain to botrytis cinerea is enhanced. By using an overexpression strain of the VvMYB108 in arabidopsis thaliana, it is found that the disease resistance of the VvMYB108 transgenic strain to Pst DC3000 is enhanced.

The present invention belongs to the field of biological genetic engineering and relates to the use of ginseng transcription factor PgERF2 in improving plant resistance to Alternaria alternata. The sequence of the ginseng transcription factor PgERF2 protein is shown in SEQ ID NO.1; the sequence of the ginseng transcription factor PgERF2 gene is shown in SEQ ID NO.2. The present invention clones the PgERF2 gene and constructs a corresponding plant expression vector, successfully transferring the gene into wild-type Arabidopsis thaliana. Transcriptomic analysis results show that the response to biotic stress is activated in the transgenic plants, and the expression level of the plant defense protein-related gene AtPDF1.2A is significantly increased. It is also demonstrated that PgERF2 can directly bind to the GCC-box element to activate the expression of the plant defense protein-related gene AtPDF1.2A, thereby significantly enhancing resistance to Alternaria alternata.

The invention discloses application of a nifU2 gene in inhibition of plant cell ferroptosis, and belongs to the technical field of gene engineering. The invention provides an effect of a plant iron-sulfur cluster transporter nifU2 in regulation and control of plant iron-sulfur clusters, and solves the problem of the effect of the plant iron-sulfur cluster transporter in ferroptosis in the prior art. The nifU2 participates in the process of plant ferroptosis, and participates in plant antiviral response by inhibiting ferroptosis. According to the application, nifU2 is identified as a regulatory factor of ferroptosis in plant cells for the first time, and subsequent exploration of ferroptosis related host factors and regulatory mechanisms thereof under other biological stress conditions is facilitated.

Disclosed herein are plant-modifying compositions including a plurality of plant messenger packs (PMPs) (e.g., including a plant extracellular vesicle (EV), or segment, portion, or extract thereof), wherein the PMPs include a plant-modifying agent, and wherein the plant-modifying agent comprising the heterologous RNA. The compositions herein are useful in methods for modifying plants such as to increase plant fitness, wherein the increase in plant fitness comprising an increase in development, growth, yield, resistance to abiotic stressors, or resistance to biotic stressors.

This invention discloses an early detection and evaluation method and system for the abiotic stress tolerance of new forest tree germplasm. The method includes: collecting chlorophyll fluorescence indicators, phenotypic indicators, and physiological and biochemical indicators of forest trees under abiotic stress conditions, and performing data cleaning and standardization; performing principal component analysis on the multi-source standardized dataset to screen candidate indicators; performing grey relational analysis using the comprehensive score of forest tree stress tolerance as a reference sequence and the candidate indicators as a comparison sequence; determining the core indicators and their weights based on the variance contribution rate of the principal component analysis and the correlation degree of the grey relational analysis; obtaining the abiotic stress assessment index from the core indicators using a membership function; and classifying the tolerance level of forest tree germplasm using a clustering algorithm based on this index. This invention achieves early, rapid, and accurate evaluation of the abiotic stress tolerance of forest tree germplasm, and can effectively guide forest tree stress resistance breeding work.

This disclosure relates to alloploidy plants and hybrid alloploidy plants having desirable properties such as resistance to abiotic or biological stressors, which can be used as rootstock for cultivated tomato varieties. This disclosure further relates to composite plants that include the alloploidy plants described herein as rootstock. This disclosure further relates to methods for producing alloploidy plants and plant parts, as well as hybrid alloploidy plants and plant parts. In some embodiments, the techniques described herein relate to methods for producing unnatural stress-tolerant composite tomato plants, comprising providing a stress-tolerant allotetraploid tomato plant as rootstock, providing a Solanum lycopersicum variety as scion, grafting the scion onto the rootstock, thereby producing an unnatural stress-tolerant composite tomato plant.

The invention discloses an application of corn E3 ubiquitinase in enhancing the resistance of corn to corn stem rot and drought. The name of the corn E3 ubiquitinating enzyme is ZmWIPF2, and the corn E3 ubiquitinating enzyme is shown as a sequence 2 in a sequence table. When the corn is subjected to abiotic stress such as drought and biological stress such as stem rot, the ZmWIPF2 cooperates with related genes to regulate and control the corn to resist the stem rot and drought and respond to pathogenic bacterium infection and drought stress. The ZmWIPF2 gene contains a zinc finger structural domain and an RING-H2 structural domain, wherein RING-Ubox is an E3 ubiquitin ligase. Transgenic material verification proves that the gene can improve the stress resistance of corn, has important significance for breeding stress-resistant corn varieties, and is suitable for wide popularization.

The present disclosure relates to Cucurbitaceae allotetraploid plants and hybrid allopolyploid plants having desirable traits, such as resistance to an abiotic or biotic stressor, which may be used as rootstock for cultivated varieties. The disclosure further relates to composite Cucurbitaceae plants comprising the allopoly ploid plants described herein as the rootstock. The disclosure further relates to methods of producing Cucurbitaceae allopolyploid plants and hybrid allopolyploid plants.

The invention belongs to the technical field of genetic engineering breeding, and discloses a wheat disease-resistant factor gene TaPsaF and application thereof. A TaPsaF gene sequence is analyzed, and a TaPsaF-GFP fusion protein is constructed, so that the localization of the TaPsaF-GFP fusion protein in cell chloroplast is determined. An overexpression and silence vector of the TaPsaF gene is successfully constructed by using a gene engineering technology, and wheat is transformed by using an agrobacterium-mediated method to obtain a transgenic wheat material. Functional verification shows that over-expression of the TaPsaF gene can significantly enhance the resistance of wheat to stripe rust, and silencing of the gene leads to reduction of the resistance. Gene resources and a technical path are provided for wheat stripe rust resistance molecular breeding, the blank of the TaPsaF protein in biological stress response mechanism research is filled up, and the TaPsaF protein has important significance for guaranteeing food safety.

The invention relates to aromatic carboxylic acid ionic derivatives, wherein anion is represented by a general formula (I) or (II), and cation is selected from cation M+ and a cation of general formula (III), wherein the formulae (I), (II) and (III) are defined in the description, for use as a plant stimulant in plant growth regulation and / or in regulation of plant metabolic processes, and also—in case of ionic derivatives, wherein the anion is defined by the general formula (II)—for preventing the effects of biotic stress caused by the activity of viruses, bacteria and / or fungi. The invention also relates to a plant stimulation method and use of aromatic carboxylic acid ionic derivatives as active compounds for the production of compositions for stimulating plants by regulating their growth and / or metabolic processes, and in case of derivatives, wherein the anion is defined by the general formula (II)—also for preventing the effects of biotic stress caused by the activity of viruses, bacteria and / or fungi.

Drought is one of the biggest problems in the world. Drought in agricultural production soils also increases the salinity of the soil. The plant is more than one abiotic in natüre encounters stress. In this process, if the plant reacts to the antioxidant enzymes and survives, it is called a resistant plant. The enzyme response is insufficient and the increase in the level of TBARS causes plant deaths. This invention organic fertilizer strengthens the plant antioxidant enzyme and protects the plant against drought and salt stress.

Aromatic alkyl carboxylic acids and ester derivatives thereof useful for promoting plant growth, yield, and protect against abiotic and biotic stresses. The present invention relates to the use of aromatic alkyl carboxylic acids and ester derivatives thereof, or an agriculturally acceptable salt thereof, to increase growth and / or yield of a plant, at any developmental stage, as compared to the non-treated plant of the same species and at the same developmental stage. It also relates to the use of the compound to further increase in the adaptability of the plant to biotic and abiotic stresses.

The present invention relates to a composition comprising (i) seaweed, (ii) oil, and (iii) at least two surfactants wherein the pH of the composition ranges from about 3 to about 6. Optionally, the composition further comprises at least one agriculturally acceptable carrier and / or additive, such as a chelating agent and / or a rheological aid. The invention also relates to a method and use of seed treatment of a plant biostimulant composition for mitigating abiotic stress or managing crop productivity.

The invention provides a sugarcane ScGSTU9 gene with a stress resistance function, a protein and application, belongs to the technical field of biology, and particularly discloses application of the sugarcane ScGSTU9 gene in disease resistance, drought resistance, salt resistance and low temperature resistance. According to the invention, the biological stress and abiotic stress response of the ScGSTU9 are preliminarily explored, and a solid foundation is laid for deeply researching the function and the action mechanism of the gene in the process that the sugarcane responds to pathogenic bacteria stress and abiotic stress.

The invention relates to a method for improving abiotic stress resistance of rice and the rice, and belongs to the technical field of biological gene engineering. According to the method for improving the abiotic stress resistance of the rice, an upstream open reading frame sequence SEQ ID NO.1 of a GGP gene of the rice is modified, so that the rice is resistant to salt stress. According to the invention, a conservative open reading frame (uORF) influencing the translation efficiency of the L-galactose synthesis key gene GGP upstream of the rice vitamin C is identified, and the function of the L-galactose synthesis key gene GGP is determined through a dual-luciferase reporter vector. GGPuORF of the rice is knocked out through a CRISPR / Cas9 technology, and the rice which is remarkably improved in the aspects of abiotic stress resistance such as saline-alkaline tolerance and the like is created.

The application discloses a caffeic acid-O-methyltransferase 2 gain-of-function mutant, a recombinant expression vector and application thereof, and belongs to the technical field of crop biological breeding. It is found for the first time that after the 344th amino acid of tomato caffeic acid-O-methyltransferase 2 is changed from cysteine (C) to tryptophan (W), the content of melatonin of the tomato can be increased, the tomato can be endowed with broad-spectrum resistance to abiotic and biotic stresses, and the tomato can be used as a key target point for resistance breeding.