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Method for improving photosynthetic organisms

A technology of photosynthetic cells and carbohydrates, applied in biochemical equipment and methods, botany equipment and methods, chemical instruments and methods, etc., can solve expensive and time-consuming problems

Pending Publication Date: 2022-07-29
AGRESEARCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods are time-consuming, may require extensive training or expertise, and often require the use of expensive equipment and / or consumables

Method used

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  • Method for improving photosynthetic organisms
  • Method for improving photosynthetic organisms
  • Method for improving photosynthetic organisms

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Embodiment Construction

[0231] In this specification, where reference is made to patent specifications, other external documents, or other sources of information, this is generally done to provide a context for discussing the features of the invention. Unless specifically stated otherwise, references to these external documents should not be construed as an admission that these documents or these sources of information are prior art under any authority or form part of the common general knowledge in the field.

[0232] As used in this specification, the term "comprising" means "consisting at least in part". When interpreting each statement in this specification that includes the term "comprising", features other than the one or those features prefixed by the term may also be present. Related terms such as "comprising" and "including" are to be interpreted in the same manner.

[0233] water soluble carbohydrates

[0234] The term "water soluble carbohydrate" (WSC) includes, but is not limited to, mo...

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Abstract

The present invention provides a method for reducing water soluble carbohydrates (WSCs) in photosynthetic cells and plants, the method comprising the step of genetically modifying photosynthetic cells and plants to express modified oleaginous proteins comprising at least one artificially introduced cysteine to reduce WSC. The applicant has shown that in such cells and plants, WSC reduction and photosynthesis increase have very strong correlation. Furthermore, the measurement of WSC is much simpler than other usual measurements in selecting cells or plants with the most advantageous characteristics.

Description

technical field [0001] The present invention relates to enhancing CO in photosynthetic cells and plants 2 Methods for assimilation and other growth / yield traits. Background technique [0002] The growing global population places demands on high-yielding crops with increased yield (photosynthetic carbon assimilation). [0003] Ribulose diphosphate carboxylase (Rubisco) is a key enzyme responsible for photosynthetic carbon assimilation. in O 2 When present, Rubisco also undergoes an oxygenase reaction that initiates the photorespiration cycle, resulting in fixed nitrogen and CO that need to be recovered from the cell 2 indirect losses. Increase Rubisco to CO 2 relative to O 2 The specificity and genetic modification of Rubisco to increase the catalytic rate of Rubisco in crops would be of great agronomic value. Parry et al. (2003) reviewed progress to date and concluded that there are still many technical hurdles to overcome and that all engineering attempts to date hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N15/82A01H13/00A01H1/00A23D9/00C07K14/415A01H5/00
CPCC12N15/8245C12N15/8247C12N15/8261C12Y203/0102C07K14/415C12N9/1029C12N15/8269C12N15/8273
Inventor N·J·罗伯茨S·维尼查亚库尔Z·D·比奇-格拉德韦尔L·J·库尼
Owner AGRESEARCH LTD