Composition for improving cadmium tolerance of kenaf in seedling stage

A composition and a technology at the seedling stage, applied in the field of compositions for improving the cadmium-resistant performance of kenaf at the seedling stage, can solve problems such as little effect, and achieve the effect of returning to normal leaf development and weakening the degree of yellowing of leaves

Inactive Publication Date: 2017-05-24
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the cadmium-resistant characteristics of kenaf have been widely recognized, it has not been widely planted as a restoration plant. The inventors have found through in-depth research that there is still room for improvement in the potential of kenaf roots to absorb heavy metal cadmium in soil. Phytoremediation The key part of the root system is the root system, Cd enters the root tip as a symplast and deposits in the epidermal cells, and then transports to other parts throu...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1GSNO mother liquor preparation

[0020] Preparation of GSNO mother liquor: equal volume of 10mmol / L NaNO 2 (in 100mmol / LHCl) and an equal volume of 10mmol / LGSH (in 100mmol / LpH7. Na 2 HPO 4 -NaH 2 PO 4 Phosphate buffer) reaction, can form 5mmol / LGSNO (the mixture contains 5mmol / LGSNO).

Embodiment 2

[0021] Embodiment 2GSNO diluent preparation

[0022] The GSNO stock solution was stored on ice and diluted tenfold (500 μmol / L) before use. At room temperature, in 100mmol / L pH7.4 phosphate buffer (containing 50μmol / LDTT), GSNO can release NO, and 500μmol / L GSNO releases about 3.25μmol / L NO in 30min.

[0023] In the composition except GSNO, all other compounds are commercially available.

Embodiment 3

[0024] The preparation of embodiment 3 compositions

[0025] Dissolve 78.5 g of hydroxymethylcellulose (HMc), 7.5 g of gallocatechin, 10.5 g of sodium 2-naphthalenesulfonate, and 2.5 g of aminotriacetic acid in 200 mL of ethanol, and add 1 g of GSNO diluent (concentration of 500 μmol / L), the resulting solution is the composition provided by the invention.

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PUM

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Abstract

The invention provides a composition for improving cadmium tolerance of kenaf in a seedling stage, belonging to the field of plant cultivation. The kenaf has the characteristics of short growth cycle, high biomass (three to four times that of trees), strong heavy metal tolerance, wide applicability and the like, the kenaf is fiber crop, and heavy metal is hardly taken into a food chain, so that the kenaf is hopeful to be used for treating large-area heavy metal-polluted soil, soil pollution can be treated, and higher economic benefit also can be obtained. The invention aims at improving tolerance of the kenaf in the seedling stage to soil cadmium stress, and the composition for improving the cadmium tolerance of the kenaf in the seedling stage is provided for achieving the aim.

Description

technical field [0001] The invention belongs to the field of plant cultivation, and in particular relates to a composition for improving the cadmium-resistant performance of kenaf seedlings. Background technique [0002] Kenaf has the characteristics of short growth cycle, large biomass (three to four times that of trees), strong resistance to heavy metals, and wide adaptability. Because it is a fiber crop, it is not easy to bring heavy metals into the food chain. Therefore, kenaf is expected to be used to treat large areas of soil polluted by heavy metals, not only to control soil pollution, but also to obtain higher economic benefits. Qi Jianmin and others studied the absorption characteristics of kenaf to heavy metals, screened out kenaf varieties with high tolerance and high cadmium enrichment, studied the absorption and accumulation characteristics of kenaf to heavy metal cadmium and the differences between varieties; compared the high tolerance varieties Differences i...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N37/46A01P21/00
CPCA01N43/16A01N37/46A01N2300/00
Inventor 郭媛王玉富龙松华邱财生王慧郝冬梅
Owner INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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