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Affecting of Glyphosate Tolerance and Metabolite Content in Transgenic Overexpressing Gene from .
Plants (Basel)
December 2024
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Long-term use of the global non-selective herbicide glyphosate for weed control has caused resistance in weeds. Overproducing of the target of glyphosate 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) is one of the resistance mechanisms in weeds. However, few studies have measured the effects on tolerance levels and metabolite content in model plant species overexpressing from weeds.
View Article and Find Full Text PDFUnraveling the mechanisms of multiple resistance across glyphosate and glufosinate in Eleusine indica.
Pestic Biochem Physiol
December 2024
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. Electronic address:
The herbicides glyphosate and glufosinate are commonly used in citrus and sugarcane orchards in Guangxi Province, China, wherein the C plant Eleusine indica (L.) Gaertn. is known to be a dominant weed species.
View Article and Find Full Text PDFMurA-catalyzed synthesis of 5-enolpyruvylshikimate-3-phosphate confers glyphosate tolerance in bryophytes.
Proc Natl Acad Sci U S A
November 2024
Gregor Mendel Institute, Vienna BioCenter, Vienna 1030, Austria.
Glyphosate is a broad-spectrum herbicide that kills most vascular plant weeds but is ineffective against many bryophytes. Glyphosate competitively inhibits the enolpyruvyl transferase enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). EPSPS catalyzes the production of 5-enolpyruvylshikimate-3-phosphate (EPSP)-an intermediate in the shikimate pathway-from shikimate-3-phosphate (S3P) and phosphoenolpyruvate (PEP) substrates.
View Article and Find Full Text PDFGlyphosate Resistance in : Involvement of in Addition to Gene Overexpression.
J Agric Food Chem
October 2024
College of Plant Protection, Hunan Agricultural University, Changsha 410128, China.
Article Synopsis
- Glyphosate use has led to the evolution of resistant weed populations, prompting a study focused on a glyphosate-resistant population (R-JX) from China.
- The R-JX population exhibited 8.5 times the resistance compared to a susceptible population, without mutations identified in the target gene; instead, increased expression and copy number of certain genes were detected.
- Pre-treatment with a P450 inhibitor reduced glyphosate resistance, while overexpressing the target gene in rice demonstrated that gene overexpression contributes to glyphosate resistance in these weed populations.
Bifunctional Phenylalanine/Tyrosine Ammonia-Lyase (PTAL) Enhances Lignin Biosynthesis: Implications in Carbon Fixation in Plants by Genetic Engineering.
Biology (Basel)
September 2024
Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Ecology and Evolutionary Biology, Fudan University, Songhu Road 2005, Shanghai 200438, China.
Lignin is a key metabolite for terrestrial plants. Two types of aromatic amino acids, phenylalanine (Phe) and tyrosine (Tyr), serve as the precursors for lignin biosynthesis. In most plant species, Phe is deaminated by Phe ammonia-lyase (PAL) to initiate lignin biosynthesis, but in grass species, Phe and Tyr are deaminated by Phe/Tyr ammonia-lyase (PTAL).
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