Corn Gluten: Natural Herbicide Potential?

Corn Gluten: Natural Herbicide Potential?

Corn Gluten: Natural Herbicide Potential?

Emerson da Silva Portes 2 Weed control is usually done through the chemical method, that is, with herbicides. However, with the repetitive use of herbicides with the same mechanism of action in an area, it provides high selection pressure in weeds, thus selecting resistant biotypes. To avoid the emergence of other resistant biotypes, more options are needed for the producer. However, in the last decades, the launch of herbicides with new mechanisms of action is being scarce. In addition, there is great demand from society for natural herbicides. The objective of this seminar is to present chemical compounds derived from corn grain with herbicide potential. Corn gluten (GM) is used as a herbicide of natural origin for the control of weeds mono and dicotyledons, in pre-emergence. GM reduces the size of roots and the development of seedlings. But, corn gluten is insoluble in water, damaging its performance. From GM, hydrolyzed maize gluten (GMH) was obtained, which has high solubility in water and good herbicidal efficiency. Investigation of the active ingredients present in the GMH indicated five potential herbicidal candidates: glutaminyl glutamine, alaninyl aspararagine, alaninyl glutamine, glycinyl alanine and alaninyl alanine (Ala-Ala). Further analysis shows that the Ala-Ala dipeptide is the most promising herbicidal action. This dipepitídeo has activity in the cellular wall of the roots of the seedlings. Ala-Ala has been investigated as an inhibitor of bacterial cell wall constituents. It is concluded that GM and its derivatives can serve as herbicides and allow the discovery of new mechanisms of action.

Corn Gluten: Natural Herbicide Potential?

Summary of the seminar presented in the discipline FIT 00001 - Seminar, 06/23/2004. Engº Agrº, student of the Post-Graduation Program in Plant Science, UFRGS, under the guidance of Prof. Ribas Antonio Vidal

Consultancy and Environmental Education: The seven-point ladybug
A liquid that many people associate with that ladybug has "done their needs", but that really expels to try to defend themselves. They are excellent planters at the service of humans and play a very important biological control function in certain crops.