阅读说明：本技术 紫堇碱类物质在作为除草剂方面的应用 (Application of corydaline substances as herbicide ) 是由 周利娟 黄继光 田延琴 于 2017-11-20 设计创作，主要内容包括：本申请是申请号为201711158169.X、申请日为2017年11月20日、发明名称为“一类异喹啉类生物碱在作为除草剂方面的应用”的分案申请。本发明公开了紫堇碱类物质在作为除草剂方面的应用。本发明研究发现,所述紫堇碱类物质,具体是延胡索甲素或脱氢紫堇碱,对拟南芥、薇甘菊、牛筋草、马唐、三叶鬼针草、青葙、浮萍等多种常见杂草均具有显著的除草效果,而且对环境安全,对人畜低毒,可制备成除草剂使用,用于实际生产中进行杂草的防除,环保、安全。另外,该类物质除草作用的开发,可促进其资源植物的综合利用,发展前景广阔。(The application is a divisional application with the application number of 201711158169.X, the application date of 2017, 11 and 20 months, and the invention name of the application is 'application of isoquinoline alkaloids in the aspect of serving as herbicides'. The invention discloses application of corydaline substances as herbicides. The research of the invention finds that the corydaline substance, in particular the corydalis oridonin or dehydrocorydaline, has obvious weeding effect on a plurality of common weeds such as arabidopsis thaliana, mikania micrantha, eleusine indica, digitaria sanguinalis, bidens pilosa, feather cockscomb, duckweed and the like, is safe to the environment, has low toxicity to people and livestock, can be prepared into a herbicide for use, is used for preventing and removing weeds in actual production, and is environment-friendly and safe. In addition, the development of the weeding effect of the substances can promote the comprehensive utilization of resource plants, and the development prospect is wide.)

1. The application of the corydaline substances in the aspect of serving as or preparing herbicides is characterized in that the corydaline substances are corydalis A or dehydrocorydaline.

2. The use according to claim 1, wherein the herbicide acts on Arabidopsis thaliana, mikania micrantha, goosegrass, crab grass, Bidens pilosa, feather cockscomb, lemna minor, Echinochloa crusgalli, Aleurites communis, Poa pratensis, Cynodon dactylon, Cyperus rotundus, Cynara scolymus, Portulaca oleracea, Amaranthus retroflexus, Amaranthus hypochondriacus and/or Amaranthus pratense.

3. A herbicide is characterized by containing corydalis A and/or dehydrocorydaline.

4. A herbicide as claimed in claim 3, characterized in that it is a herbicide for arabidopsis thaliana, mikania micrantha, goosegrass, crab grass, bidens pilosa, celosia, lemna minor, barnyard grass, setaria viridis, alopecurus, poa pratensis, bermudagrass, cyperus rotundus, ageratum, purslane, amaranthus retroflexus, amaranthus deltoides and/or cardamine filiformis.

Technical Field

The invention belongs to the technical field of pesticide research and development. More particularly, relates to the application of the corydaline substances as herbicides.

Background

Herbicides (herbicide) refer to agents that cause complete or selective death of weeds, and are a class of substances used to destroy or inhibit plant growth. At present, the herbicide variety with high efficiency, low toxicity and broad spectrum plays an increasingly important role in agricultural production.

Alkaloids are a class of basic organic compounds containing nitrogen that are found in nature (mainly in plants, but sometimes also in animals). A great deal of literature reports the medical and agricultural effects of alkaloid compounds, and the alkaloid compounds have various functions, have wide application in daily life and play great roles in medicine and agriculture.

Further research and development of alkaloid substances have wide application prospect and obvious social significance. The research and development comprises two aspects, namely, the new application of the alkaloid substances with determined structures is further developed, the new alkaloid substances are researched and discovered, the physiological functions of the alkaloid substances are clarified, and good products for social production and people life service are developed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects and shortcomings of the prior art and provide a corydaline substance with herbicidal activity, in particular to corydaline or dehydrocorydaline; the alkaloids have good herbicidal activity for Arabidopsis thaliana, mikania micrantha, goosegrass, digitaria sanguinea, bidens pilosa, feather cockscomb, duckweed and the like, are safe to environment, have low toxicity to human and livestock, and can be prepared into herbicide for use.

The invention aims to provide application of corydaline substances as herbicides.

Another object of the present invention is to provide a herbicide.

The above purpose of the invention is realized by the following technical scheme:

application of corydaline substances in preparation of herbicide is provided.

The corydaline substance is corydalis yanhusuo A or dehydrocorydaline.

Preferably, in the application, the herbicide acts on common important weeds such as arabidopsis thaliana, mikania micrantha, eleusine indica, crabgrass, bidens pilosa, feather cockscomb, duckweed, barnyard grass, green bristlegrass, alopecurus, bluegrass, cyperus rotundus, ageratum, purslane, amaranthus retroflexus, amaranthus receptaculus and/or cardamine filiformis.

A herbicide containing the corydaline substances is also within the protection scope of the invention.

The corydaline substances are corydalis yanhusuo A and/or dehydrocorydaline.

Preferably, the herbicide is a herbicide for common important weeds such as arabidopsis thaliana, mikania micrantha, eleusine indica, crabgrass, bidens pilosa, feather cockscomb, lemna minor, barnyard grass, setaria viridis, alopecurus, poa pratensis, bermudagrass, cyperus rotundus, ageratum, purslane, amaranthus retroflexus, amaranthus pallidum and/or cardamine hirsutella.

The above summary and application are based on the following research results of the subject group of the present inventors: in the research process of the subject group, multiple tests show that various corydaline substances have remarkable weeding effect on various weeds (including various invasive weeds). The corydalis alkaloid substance comprises the corydalis A or dehydrocorydaline. Through tests, the substances have obvious herbicidal activity on arabidopsis thaliana (wild type), mikania micrantha, eleusine indica, digitaria sanguinea, bidens pilosa, feather cockscomb, duckweed, barnyard grass, setaria viridis, alopecurus, poa pratensis, cynodon dactylon, cyperus rotundus, ageratum, purslane, amaranthus retroflexus, amaranthus and/or cardamine hirsutella.

The invention has the following beneficial effects:

the invention discloses a novel application of violaceine substances as a herbicide, the substances can obviously inhibit root growth or plant growth of weeds such as arabidopsis thaliana, mikania micrantha, goosegrass herb, digitaria sanguinea, bidens pilosa, feather cockscomb, barnyard grass, setaria viridis, alopecurus, poa pratensis, bermudagrass, cyperus rotundus, ageratum, purslane, amaranthus retroflexus, amaranthus pallidus and/or cardamine hirsutum, and the weeding effect is obvious.

In addition, the substances have wide sources, easily obtained raw materials and natural sources, have smooth degradation ways in the nature, and have no pollution, no residue and no environmental pollution.

In addition, most of the corydaline substances have certain insecticidal and antibacterial effects, and have control effects on crop pests and diseases while preventing and removing weeds, so that the effect of one medicine for multiple purposes is achieved.

Fourthly, the research and development of the weeding effect of the substances can promote the comprehensive development and utilization of plant resources containing the substances.

Detailed Description

The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated. Unless otherwise indicated, reagents and materials used in the following examples are commercially available.

The following examples illustrate the herbicidal efficacy of several common weeds, and the data only show that the efficacy is significant.