Photosynthesis regulatory protein LPE1 and application thereof

Abstract

The invention discloses a photosynthesis regulatory protein LPE1 and an application thereof. A photosynthesis regulatory protein mutant lpe1 is screened from an Arabidopsis thaliana mutant library by inventors, a gene LPE1 (AT3G46610), of which codes contain a chloroplast protein of a PPR (pentatricopeptide repeat) structure field, is cloned through molecular identification, and the condition that the LPE1 participates in the light effect regulation and control of Arabidopsis thaliana is confirmed; two LPE1 interference strain lines and one homozygous deletion mutant strain line are obtained by using a forward genetics method, and the condition that the afunction of the gene LPE1 causes the developmental retardation of plants and the decrease of maximum photosynthetic efficiency is discovered; and more importantly, the protein LPE1 has sequence conservation in other crops, and the condition that functions of the LPE1 in the other crops may also be of conservation is prompted, so that crops with high photosynthetic efficiency are advantageously obtained through regulating and controlling the LPE1 by means of genetic engineering.

Description

technical field [0001] The invention belongs to the technical field of plant genetic engineering, and more particularly, relates to a photosynthesis regulatory protein LPE1 and its application Background technique [0002] With the growth of the global population, the reduction of arable land, the abnormal weather caused by climate change and the consumption of biomass energy, the global food crisis has become increasingly severe. The process by which plants and bacteria absorb light energy and use inorganic substances such as carbon dioxide and water to synthesize organic substances such as sugars and release oxygen is called photosynthesis. Photosynthesis is considered to be the most important chemical reaction on the earth, and it is the basis for the survival of the biological world. 90% to 95% of the dry weight of plants comes from photosynthesis, and the efficiency of photosynthesis directly affects the yield of crops. Therefore, improving the efficiency of photosynth...

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Problems solved by technology

[0004] Nevertheless, so far, the methods for effectively improving photosynthesis efficiency are still very limited, so it is of practical significance to find a photosynthesis regulator and apply it to the cultivation and screening of high photosynthesis plants.

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