Application of Hydrogen Sulfide Donor Sodium Hydrosulfide in Inhibiting Plant Organ Abscission

A hydrogen sulfide donor, sodium hydrosulfide technology, applied in the application, plant growth regulator, plant growth regulator and other directions, can solve the problems of new varieties taking a long time, the expectation of the results cannot be controlled in time, and the research methods are complex, etc. To achieve the effect of delayed shedding

Active Publication Date: 2020-06-12
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research and development of improved varieties is the most common method to delay the shedding of plant organs, but the improvement of new varieties takes a long time, the research methods are also very complicated, and the expectation of the results cannot be controlled in time

Method used

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  • Application of Hydrogen Sulfide Donor Sodium Hydrosulfide in Inhibiting Plant Organ Abscission
  • Application of Hydrogen Sulfide Donor Sodium Hydrosulfide in Inhibiting Plant Organ Abscission
  • Application of Hydrogen Sulfide Donor Sodium Hydrosulfide in Inhibiting Plant Organ Abscission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Two groups of Arabidopsis plants in the flowering stage with the same growth state were taken, and one group was sprayed with 50 μm of H every day. 2 S (put a lid containing 350 μl of 1M NaHS liquid in a 7L hood) for 6 hours fumigation, and the other group was not treated (control group). The abscission of Arabidopsis flowers in the two groups was observed. The results showed that H 2 The abscission of Arabidopsis floral organs in the S treatment group was significantly later than that in the control group. Description In Arabidopsis, H 2 S can inhibit the abscission of floral organs.

[0017] Two groups of Arabidopsis thaliana plants with the same growth state were taken, and one group was sprayed with 50 μm of H every day. 2 S (put a lid containing 350 μl of 1M NaHS liquid in a 7L hood) for 6 hours fumigation, and the other group was not treated (control group). Observe the dehiscence of Arabidopsis pods in the two groups. The results showed that H 2 The dehisc...

Embodiment 2

[0019] Two groups of tomato plants in the reproductive growth period with the same growth state were taken, and one group was sprayed with 50 μm of H every day. 2 S (put a lid containing 350 μl of 1M NaHS liquid in a 7L hood) for 6 hours fumigation, and the other group was not treated (control group). Observation of tomato pedicels falling off, the results showed that H 2 The proportion of tomato flower stalk shedding in the S treatment group was significantly lower than that in the control group (see attached figure 2 ).

Embodiment 3

[0021] After removing the flower organs from the tomato pedicels, they were divided into four groups and inserted on 0.7% solid agar.

[0022] These four groups of pedicels were control, hydrogen sulfide treatment, hydroxylamine (HA) treatment and hypotaurine (HT) treatment.

[0023] Weigh sodium hydrosulfide and add water to prepare an aqueous solution with a concentration of 50 μmol / L, put it in the lid of the centrifuge tube, and place it in a petri dish filled with solid agar; at the same time, add 1ml HA (100 μm) and 1ml HT (100 μm) to the respective culture dishes On the agar, seal the lid of the petri dish and observe the detachment of the flower stalk.

[0024] The results showed that hydrogen sulfide could inhibit the abscission of tomato pedicels, and the untreated tomato pedicels began to fall off 12 hours after being picked off, while the pedicels treated with hydrogen sulfide did not begin to fall off after 24 hours; while the hydrogen sulfide production inhibitor...

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Abstract

The invention discloses an application of NaHS as a H2S donor to inhibition of abscission of plant organs. H2S gas prepared from a NaHS liquid by volatilization is used for fumigating arabidopsis thaliana and tomato plants, then abscission of flower organs and capsule cracking of arabidopsis thaliana can be delayed remarkably, and pedicel abscission of the tomatoes can be inhibited remarkably; an acceleration action of an abscission accelerator ethylene on abscission can be weakened by H2S; the expression level of marker protein (polygalacturonase, cellulase and cell wall expansion protein) encoding genes in an organ abscission process is detected in an H2S treating process, a result proves that the expression level is different from that of an untreated control group, and the expression quantity of related genes in pedicels treated with H2S rises slowly, which means H2S inhibits the abscission process on the molecular level. A reagent is single and easily available, the operation is simple, and one practical and effective method is provided for delaying abscission of the plant organs.

Description

technical field [0001] The present invention relates to a new application of sodium hydrosulfide, specifically a new application of hydrogen sulfide donor sodium hydrosulfide as an inhibitor to delay plant organ shedding. Background technique [0002] Organ shedding refers to the physiological process in which plant cells, tissues or organs are separated from the mother. It is an effective mechanism for plants to cope with the external environment (such as pathogens) or to abandon those superfluous organs that no longer have a purpose. Falling flowers, leaves, fruits, and pods cracking all belong to the category of organ shedding. At the same time, organ shedding is an important agronomic trait. In production, when crops are under stress such as drought, cold, and pests and diseases, in order to avoid the impact on yield caused by these unfavorable factors, people need to inhibit the occurrence of organ shedding. Therefore, controlling the timing of organ shedding has been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/02A01P21/00
CPCA01N59/02
Inventor 刘旦梅裴雁曦李娟
Owner SHANXI UNIV
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