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45 results about "Piriformospora" patented technology

Piriformospora is a fungal genus of the order Sebacinales. It is a monotypic genus, containing the single endophytic root-colonising species Piriformospora indica, discovered from orchid plants in the Thar desert in Rajasthan, India by Prof. Ajit Verma and group, School of Life Sciences, Jawaharlal Nehru University, New Delhi. The fungus has typical pear-shaped chlamydospores, and thus, named as P. indica . Unlike mycorrhizal fungi, which cannot be cultured axenically, P. indica can be easily grown on various substrates. It has been found to promote plant growth during its mutualistic symbiotic relationship with a wide variety of plants. Experiments have shown that P. indica increases the resistance of colonized plants against fungal pathogens. It has also been found in experiments with barley that P. indica-inoculated plants are tolerant to salt stress and more resistant to root pathogens. P. indica-infested roots also show antioxidant capacity. The fungus also induces systemic disease resistance in plants. P. indica was found to require host cell death for proliferation during mutualistic symbiosis in barley. Its genome has been sequenced and was published in 2011.

Method for producing biological bacterial fertilizer by taking waste substances as raw material

The invention discloses a method for producing a biological bacterial fertilizer by taking waste substances as a raw material, belongs to the technical field of biological bacterial fertilizers, and aims to develop a biological bacterial fertilizer which has the effects of resisting cold, drought, waterlogging and diseases and increasing yield by decomposing and fermenting paper mill garbage and urban domestic garbage through the specific functions of a piriformospora indica bacterial strain and bacillus subtilis serving as natural plant growth regulating agents. The technical route comprises the following steps: treating waste rice hull produced in a paper mill and cellulose substances such as straw, and preparing a culture medium together with leftover dry powder; inoculating a fermentation liquor mixture of cellulose degradation bacteria, such as trichoderma, bacillus megaterium, potassium bacteria and the piriformospora indica bacterial strain; fermenting to obtain the liquid bacterial fertilizer. By adopting the method, the current three problems of effective utilization of recyclable resources such as straw and rice hull, pollution abatement of paper mills and urban domestic garbage disposal are solved; meanwhile, the biological bacterial fertilizer has the advantages of improvement on the yield and quality of various crops, low production cost, remarkable fertilizer effect, improvement on the stress resistance of the crops, and very remarkable economic benefit.
Owner:XINZHOU TEACHERS UNIV

Method for reducing lead content of tobacco leaves

The invention provides a method for reducing lead content of tobacco leaves. According to the method, parasitic piriformospora indica at the root of tobacco is utilized to reduce heavy metal lead residues in tobacco. The method comprises the following specific steps: (1) by use of utilizing nano material ZnO to replace ZnSO4.7H2O in an original Kafer culture medium, adding 10mg of nano material ZnO into per litre of the culture medium; (2) inoculating the activated piriformospora indica into the liquid Kafer culture medium obtained in the step (1) for culturing, then collecting mycelia, preparing a piriformospora indica mycelium solution, then pouring the piriformospora indica mycelium solution to the root of a tobacco seedling, and performing root-irrigation treatment so as to colonize the piriformospora indica at the root of the tobacco seedling; (3) after performing piriformospora indica colonization, transplanting the tobacco seedling into a large field, and then performing routine water and fertilizer management so as to enable the tobacco to grow normally. The method can be used for improving the tobacco growth condition, reducing the transfer of the heavy metal lead from a root system to the overground part of the tobacco and reducing the heavy metal lead residues, and is easy to master, relatively low in cost, simple and practical, environment-friendly, and incapable of causing secondary pollution.
Owner:CHINA TOBACCO GUIZHOU IND

Method for lowering content of chromium in tobacco

The invention discloses a method for lowering the content of chromium in tobacco. According to the method for lowering the content of chromium in the tobacco, piriformospora indica is grown on the root of the tobacco in a parasitic manner so as to reduce heavy metal chromium residuals in the tobacco. The method for lowering the content of chromium in the tobacco specifically comprises the steps that (1) ZnSO4 7 H2O in an original Kafer culture medium is replaced by nanometer material zinc oxide, and 10 mg of nanometer material zinc oxide is added to each liter of culture medium; (2) activated Piriformospora indica is inoculated to the Kafer culture medium obtained in the step (1) to be cultured, then mycelia are collected, piriformospora indica hypha liquid is prepared, the prepared piriformospora indica hypha liquid is then poured to the root of a tobacco seedling, and root-irrigation treatment is conducted, so that the piriformospora indica is colonized on the root of the tobacco seedling; (3) after the piriformospora indica is colonized on the root of the tobacco seedling, the tobacco seedling is transplanted to a land, and then conventional water and fertilizer management is conducted to make the tobacco seedling grow normally. According to the method for lowering the content of chromium in the tobacco, the growth condition of the tobacco can be improved, the amount of heavy metal chromium which transfers from the root of the tobacco to the overground part of the tobacco is reduced, the heavy metal chromium residuals in the tobacco are reduced, the method is easy to master, the cost is low, the method is easy and practical, environmental friendliness is achieved, and secondary pollution can not be caused.
Owner:CHINA TOBACCO GUIZHOU IND

Piriformospora indica microbial agent and preparation method thereof

ActiveCN114107070ASolve the difficulty of sporulationSolve difficult-to-scale applicationsBiocidePlant growth regulatorsBiotechnologyPiriformospora
The invention discloses a piriformospora indica microbial inoculum and a preparation method thereof, the piriformospora indica microbial inoculum comprises a fermentation carrier containing piriformospora indica thalli as an active ingredient, a spore protective agent, a dispersing agent and a spreading agent, the content of piriformospora indica chlamydospore in the fermentation carrier is (1.0-20.0) * 10 < 6 > spores/g, the weight percentage of the dispersing agent and the spreading agent is 1-5%, and the weight percentage of the spreading agent is 1-5%. The weight percentage of the spore protective agent is 0.05 to 0.1 percent. The method successfully solves the problem that piriformospora indica is difficult in spore production, large-scale application and long-term storage, when the seed solution is prepared, soluble starch is adopted as a carbon source, compared with other carbon sources, the growth speed of piriformospora indica hyphae can be remarkably increased, the spore production time is remarkably shortened, the spore production quantity is increased, and the production cost is reduced. Through solid culture with sorghum and cane sugar as fermentation carriers, the storability is improved, the prepared microbial inoculum can be preserved for a long time, the spore activity can be kept, and possibility is provided for large-area production and application.
Owner:天津市农业科学院

A kind of method for improving the germination rate and strong seedling of tobacco floating seedlings

The invention relates to the field of tobacco floating seedling and aims to provide a method for improving the germination rate of tobacco floating seedling seeds and strengthening seedlings. According to the method, a thallus of plant root endophytic fungus piriformospora indica, which is cultured by using a liquid medium, and a culture filtrate are uniformly mixed with a tobacco seedling substrate, and the germination rate of the tobacco floating seedling seeds is improved and the growth and stress tolerance of tobacco seedlings are promoted by using the thallus of piriformospora indica and the substances released by the thallus in the culture filtrate. The method provided by the invention is simple, convenient and feasible, and according to the method, the piriformospora indica is cultured by using a conventional method, standard rules are used for performing substrate mixing, tray filling, sowing, floating seedling, seedling exercising and transplantation, and the manner of inoculating the piriformospora indica is matched with the rules for floating seedling. By using the method provided by the invention, the germination rate of the tobacco seeds can be improved; root systems of tobacco seedlings are assisted to tolerate low-oxygen stress, so that the root systems of the tobacco seedlings are developed and the root dry weight is increased; the roots are assisted to absorb nutrients, so that the growth of the tobacco seedlings is promoted, the stems of the tobacco seedlings are thickened, the diameter of the stems is increased, and the plant height is increased; and the survival rate of the tobacco seedlings after transplantation is improved.
Owner:ZHEJIANG UNIV +1
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