ArticleJournal of experimental botany2022
Aspartic proteases modulate programmed cell death and secondary cell wall synthesis during wood formation in poplar.
Article in Journal of experimental botany, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 26 citations in OpenAlex.
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- The OsAP4-OsCATA/OsCATC Regulatory Module Orchestrates Drought Stress Adaptation in Rice Seedlings Through ROS Scavenging.Plants (Basel, Switzerland) · 2025Article
- Genome-Wide Identification and Expression Analysis ofPlants (Basel, Switzerland) · 2025Article
- GhWRKY40 Interacts with an Asparaginase GhAPGenes · 2024Article
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- Genome-Wide Identification ofInternational journal of molecular sciences · 2024Article
- Aspartyl proteases identified as candidate genes of a fiber length QTL, qFLTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Deciphering the intricate hierarchical gene regulatory network: unraveling multi-level regulation and modifications driving secondary cell wall formation.Horticulture research · 2024Article
- Transcriptome and miRNAs Profiles Reveal Regulatory Network and Key Regulators of Secondary Xylem Formation in "84K" Poplar.International journal of molecular sciences · 2023Article
- A method for analyzing programmed cell death in xylem development by flow cytometry.Frontiers in plant science · 2023Article
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
Abstract
Programmed cell death (PCD) is essential for wood development in trees. However, the determination of crucial factors involved in xylem PCD of wood development is still lacking. Here, two Populus trichocarpa typical aspartic protease (AP) genes, AP17 and AP45, modulate xylem maturation, especially fibre PCD, during wood formation. AP17 and AP45 were dominantly expressed in the fibres of secondary xylem, as suggested by GUS expression in APpro::GUS transgenic plants. Cas9/gRNA-induced AP17 or AP45 mutants delayed secondary xylem fibre PCD, and ap17ap45 double mutants showed more serious defects. Conversely, AP17 overexpression caused premature PCD in secondary xylem fibres, indicating a positive modulation in wood fibre PCD. Loss of AP17 and AP45 did not alter wood fibre wall thickness, whereas the ap17ap45 mutants showed a low lignin content in wood. However, AP17 overexpression led to a significant decrease in wood fibre wall thickness and lignin content, revealing the involvement in secondary cell wall synthesis during wood formation. In addition, the ap17ap45 mutant and AP17 overexpression plants resulted in a significant increase in saccharification yield in wood. Overall, AP17 and AP45 are crucial modulators in xylem maturation during wood development, providing potential candidate genes for engineering lignocellulosic wood for biofuel utilization.
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