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Method for improving photosynthetic carbon assimilation capability of corns under high-temperature stress

A carbon assimilation ability, high temperature stress technology, applied in the field of biological sciences, can solve problems such as interference with the balance of different enzymes

Active Publication Date: 2020-08-25
EAST CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although their optimal balance is important for the proper function of photosynthesis, the balance between the different enzymes can also be disturbed under heat stress

Method used

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  • Method for improving photosynthetic carbon assimilation capability of corns under high-temperature stress
  • Method for improving photosynthetic carbon assimilation capability of corns under high-temperature stress
  • Method for improving photosynthetic carbon assimilation capability of corns under high-temperature stress

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Embodiment Construction

[0018] Various exemplary embodiments of the present invention will now be described in detail. The detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features and embodiments of the present invention.

[0019] It should be understood that the terminology described in the present invention is only used to describe specific embodiments, and is not used to limit the present invention. In addition, regarding the numerical ranges in the present invention, it should be understood that each intermediate value between the upper limit and the lower limit of the range is also specifically disclosed. Each smaller range between any stated value or intervening value in a stated range and any other stated value or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded from the range. ...

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Abstract

The invention discloses a method for improving the photosynthetic carbon assimilation capability of corns under high-temperature stress, belongs to the technical field of bioscience, and provides a method for improving the photosynthetic carbon assimilation capability of the corns under the high-temperature stress by using exogenous trehalose with the concentration of 0.5 mmol / L. It is found thatby up-regulating the transcriptional levels of phosphoenolpyruvate carboxylase, NADP-malate dehydrogenase, NADP-malic enzyme, pyruvate phosphate dikinase and Rubisco small subunits, and promoting theactivity of C4 pathway key enzymes including PEPC, NADP-MDH, NADP-ME, RUBPCase and the like, the exogenous trehalose can effectively improve the photosynthetic carbon assimilation capability and increase the content of carbohydrates in corn seedlings.

Description

technical field [0001] The invention relates to the technical field of biological sciences, in particular to a method for improving the photosynthetic carbon assimilation ability of maize under high temperature stress. Background technique [0002] In recent years, with the intensification of the greenhouse effect, the occurrence of abnormally high temperature weather has become more frequent, and it is estimated that the global temperature will rise by 1.8-4°C by 2100. High temperature is an important environmental factor affecting plant growth and development. It has been reported that for every 1°C increase in temperature, the yield of crops can be reduced by 17%. Photosynthesis is extremely sensitive to high temperature, which can destroy photosynthetic pigments, photosynthetic system, photosynthetic electron transport and photosynthetic carbon assimilation. The response of photosynthesis in C4 plants at normal temperature is similar to that in C3 plants, but the optim...

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Application Information

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IPC IPC(8): A01G22/20A01G7/06A01N43/16A01P21/00
CPCA01G7/06A01N43/16A01G22/20
Inventor 罗音何丹王悦樊艳珍韩俊艳
Owner EAST CHINA NORMAL UNIVERSITY
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