ArticleProtoplasma2024
Differential expression of genes potentially related to the callogenesis and in situ hybridization of SERK gene in macaw palm (Acrocomia aculeata Jacq.) Lodd. ex Mart.
Article in Protoplasma, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 5 citations in OpenAlex.
- Conserved stress-responsive genes involved in the early development of Euterpe Edulis.Scientific reports · 2025Article
- Macaw palm is a harbor of new non-grass species of dark septate endophytes belonging to the genus Pseudophialophora (Magnaporthaceae).Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025Article
- Unraveling the occurrence of hyperhydricity in oil palm somatic embryos during somatic embryogenesis process.Protoplasma · 2025Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
For the purpose of understanding the molecular processes triggered during callus formation in macaw palm, the expression of seven genes potentially involved in this process, identified in previous studies and from the literature, was investigated by RT-qPCR. In addition, in situ hybridization of the SERK gene was performed. Leaf tissues from adult plants from two macaw palm accession were inoculated in a medium combined with Picloram at a concentration of 450 μM to induce callus. The expression analysis was performed from leaf samples from two accessions of different origins (Municipalities of Tiros, MG, and Buriti Vermelho, DF, Brazil), which are characterized as non-responsive (NR) and responsive (R), respectively. The material was collected before callus induction (0 DAI, initial day) and 120 days after callus induction (120 DAI). Genes related to development (SERK, OASA, EF1, ANN1) and stress (LEA, CAT2, and MDAR5) were evaluated. The results obtained showed that all the genes involved with the development had their expressions downregulated at 0 DAI when the accession R was compared with the accession NR. On the other hand, it was possible to observe that these genes were upregulated at 120 DAI. The LEA stress gene showed a tendency to increase expression in the NR accession, while the R accession showed decreased expression and the CAT2 and MDAR5 genes showed upregulation in both accessions. In situ hybridization showed SERK transcripts in the vascular bundles, indicating the expression of SERK in this region, in addition to its expression in calluses. The results obtained in this study support our hypothesis that the regulation of genes involved in the control of oxidative stress and development is crucial for the formation of calluses in macaw palm.
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