Plant root secreta continuous collection device

Abstract

Provided is a plant root secreta continuous collection device; a culture solution drainage cavity and a culture solution inlet cavity are formed in the two sides of a root incubator respectively, a plant cultivation groove used for planting plants is formed in the top of the root incubator, and a plurality of secreta collection columns are distributed in root culture soil of the root incubator; and two ends of each secreta collection column respectively penetrate through the side wall of the root system incubator and then extend into the culture solution drainage cavity and the culture solution inlet cavity, so that the culture solution drainage cavity is communicated with the culture solution inlet cavity. According to the device, root systems can be stabbed into the secreta collecting columns, and then the two peristaltic pumps drive a culture solution to flow in the secreta collecting columns; in the process, root system secreta can be dissolved and taken away by the culture solution and then adsorbed by adsorption resin in a secreta adsorption structure, and thus continuous collection of the root system secreta is completed; the growth of plant root systems is not influenced, the plant roots do not need to be dug out, the roots are prevented from being damaged, and the collection method is relatively simple and convenient.

Description

technical field [0001] The invention relates to the research of plant root exudates in the field of agricultural production, in particular to a device for continuously collecting plant root exudates. Background technique [0002] Root exudates refer to a wide variety of substances secreted or released from different parts of the root system into the growth medium during plant growth, including organic substances with low molecular weight, high-molecular glue substances, root cell sheds and their decomposition. Products and gases, protons and nutrient ions, etc. Root exudates are not only a considerable amount, but also have a great effect. It is a key factor to maintain the vitality of the rhizosphere micro-ecosystem and an important part of the rhizosphere material cycle. Root exudates significantly change the physical, chemical and biological properties of the root-soil interface, and play an important role in the formation of soil structure, soil nutrient activation, pla...

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Problems solved by technology

[0006] In order to solve the problem that the traditional soil cultivation method collects plant root exudates with a small amount of extraction at one time and cannot be obtained continuously, the present invention provides a continuous collection device for plant root exudates. In this way, the roots will naturally grow into the secretion collection column during the growth process, and the secretion collection column has a special structure, and its two ends are respectively connected to the culture solution drainage chamber and the culture solution inlet. In the liquid chamber, the peristaltic pump drives the culture liquid from the culture liquid inlet chamber along the secretion collection column into the culture liquid discharge chamber. During this process, the root exudates will be dissolved and taken away by the culture liquid, and then secreted Adsorbed by the adsorption resin in the material adsorption structure, so as to complete the continuous collection of root exudates. During the process of collecting root exudates, the device does not affect the growth of plant roots, and does not need to dig out the plant roots, avoiding damage to the roots. The collection method is relatively simple and convenient, and can be collected continuously over a period of time

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