Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Application of exogenous selenium-molybdenum composition in relieving chromium stress of tobacco

A technology of exogenous selenium and composition, applied in the field of agriculture, can solve the problems of cigarette product safety threats, harm to the health of smokers, and unclear mechanism, etc., to improve the antioxidant system, enhance the ability to resist heavy metal stress, and alleviate photosynthesis inhibitory effect

Active Publication Date: 2022-03-22
HENAN AGRICULTURAL UNIVERSITY +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the heavy metal chromium will also pose a threat to the safety of cigarette products. Tobacco is easy to accumulate chromium, and the chromium in cigarette leaves can enter the human body with the mainstream smoke during smoking, thereby endangering the health of smokers.
[0004] In existing studies, the response mechanism of exogenous selenium and molybdenum alone to alleviate tobacco heavy metal stress has been studied, but the mechanism of exogenous selenium and molybdenum combination to relieve chromium stress in tobacco seedlings is still unclear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of exogenous selenium-molybdenum composition in relieving chromium stress of tobacco
  • Application of exogenous selenium-molybdenum composition in relieving chromium stress of tobacco
  • Application of exogenous selenium-molybdenum composition in relieving chromium stress of tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0033] Selection of raw materials: Select Yunyan 87, a tobacco variety widely planted across the country. Potassium dichromate is used as chromium, and the concentration used is 50 μmol / L.

[0034] Sources of reagents: Sodium selenite, sodium molybdate, and potassium dichromate solid powders were purchased from Zhengzhou Acme Chemical Co., Ltd., with a content of 99% analytically pure reagents.

[0035] Cultivation method: (1) pre-treatment of tobacco seeds: first sterilize with 10% sodium hypochlorite solution for ten minutes, then rinse repeatedly with ultra-pure deionized water, and soak the seeds for 8 hours; (2) point the treated tobacco seeds into the containing net In the deionized water seedling tray of grid sponge, 2-3 seeds are placed on each grid, and then placed in an incubator at 28°C for dark germination; (3) About three weeks after the seeds germinate, use tweezers to germinate The tobacco seedlings of 2 cotyledons were transplanted into commercially available ...

Embodiment 1

[0050] The effect of the application of exogenous selenium and molybdenum composition on the biomass of tobacco seedlings under chromium stress, see figure 1 . The plant height, root length, leaf dry weight and root dry weight of the above five groups of tobacco seedlings were measured respectively by using the above-mentioned method of measuring agronomic traits and biomass and measuring the fresh weight of each part of the tobacco sample.

[0051] Depend on figure 1 It can be seen that Cr stress significantly reduced the plant height, root length, leaf dry weight and root dry weight, while the application of Se, Mo and Se+Mo all alleviated the inhibitory effect of Cr on the growth of tobacco seedlings. Compared with CK, Cr treatment significantly reduced the plant height and root length by 16.8% and 42.6%, and the dry weight of leaves and roots of tobacco seedlings decreased by 28.0% and 38.9%, respectively. The addition of Se and Mo significantly promoted the growth of to...

Embodiment 2

[0054] The effect of the application of exogenous selenium and molybdenum composition on the content of chlorophyll in tobacco seedlings under Cr stress, see figure 2 . Using the above physiological and biochemical assay methods, the chlorophyll content of the above five groups of tobacco was measured respectively.

[0055] Photosynthesis and other physiological processes are highly sensitive to heavy metals, and low concentrations of Cr can also inhibit plant photosynthesis. Such as figure 2 It was shown that chromium stress significantly reduced the chlorophyll content of tobacco seedlings by 41.0%, 30%, and 38%, respectively. Studies have shown that the addition of selenium and molybdenum alone can increase the content of chlorophyll under chromium stress. The addition of Se and Mo can significantly increase the content of chlorophyll a by 26.7%, 36.2%, and the content of chlorophyll b by 34.7% and 101.1%. The content of T increased significantly by 38.1% and 33.9%, re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses application of an exogenous selenium-molybdenum composition in relieving chromium stress of tobacco seedlings, and belongs to the technical field of agriculture. An indoor water culture experiment is carried out, and the influence of the selenium-molybdenum combination on biomass, chlorophyll content, antioxidant enzyme activity, rhizome ultrastructure, leaf tissue structure and subcellular distribution of Cr in tobacco seedlings under Cr stress is analyzed. The invention proves that the selenium-molybdenum composition can improve the growth condition of the tobacco under chromium stress, enhance the heavy metal stress resistance of the tobacco, and provide effective reference for exploring the safety production of the tobacco and other crops.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to the application of an exogenous selenium and molybdenum composition in alleviating tobacco chromium stress. Background technique [0002] Chromium (Cr) is a plant toxic metal. Excessive deposition of chromium in plant tissues can cause severe phytotoxicity, such as reduced growth and biomass, chlorophyll degradation, delayed nutrient uptake, overproduction of reactive oxidizing species (ROS), disturbance of antioxidant defense mechanisms and cellular ultrastructure Chromium toxicity can also inhibit the function and regulation of various proteins in plants and lead to chromosomal aberrations in plant tissues. [0003] Chromium is a heavy metal pollutant that can directly affect the migration of free water in tobacco cells, thereby causing tobacco plants to lose water and wilt. Effects on Tobacco Quality. At the same time, the heavy metal chromium will also pose a threat ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/00A01P21/00
CPCA01N59/00
Inventor 许嘉阳曲利利李翔郝浩浩韩丹贾玮许自成王迅唐培培汪雪雷
Owner HENAN AGRICULTURAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com