Physiological, epigenetic, and proteomic responses in Pfaffia glomerata growth in vitro under salt stress and 5-azacytidine (Record no. 53518)

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fixed length control field 02638nam a2200313Ia 4500
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control field MX-MdCICY
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control field 20250625162429.0
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Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-19389
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Title Physiological, epigenetic, and proteomic responses in Pfaffia glomerata growth in vitro under salt stress and 5-azacytidine
490 0# - SERIES STATEMENT
Volume/sequential designation Protoplasma, 10.1007/s00709-022-01789-4, 2022
520 3# - SUMMARY, ETC.
Summary, etc. Plants adjust their complex molecular, biochemical, and metabolic processes to overcome salt stress. Here, we investigated the proteomic and epigenetic alterations involved in the morphophysiological responses of Pfaffia glomerata, a medicinal plant, to salt stress and the demethylating agent 5-azacytidine (5-azaC). Moreover, we investigated how these changes affected the biosynthesis of 20-hydroxyecdysone (20-E), a pharmacologically important specialized metabolite. Plants were cultivated in vitro for 40 days in Murashige and Skoog medium supplemented with NaCl (50 mM), 5-azaC (25 ?M), and NaCl + 5-azaC. Compared with the control (medium only), the treatments reduced growth, photosynthetic rates, and photosynthetic pigment content, with increase in sucrose, total amino acids, and proline contents, but a reduction in starch and protein. Comparative proteomic analysis revealed 282 common differentially accumulated proteins involved in 87 metabolic pathways, most of them related to amino acid and carbohydrate metabolism, and specialized metabolism. 5-azaC and NaCl + 5-azaC lowered global DNA methylation levels and 20-E content, suggesting that 20-E biosynthesis may be regulated by epigenetic mechanisms. Moreover, downregulation of a key protein in jasmonate biosynthesis indicates the fundamental role of this hormone in the 20-E biosynthesis. Taken together, our results highlight possible regulatory proteins and epigenetic changes related to salt stress tolerance and 20-E biosynthesis in P. glomerata, paving the way for future studies of the mechanisms involved in this regulation.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element ABIOTIC STRESS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DNA METHYLATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MEDICINAL PLANT
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element METHYLTRANSFERASE INHIBITOR
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PHYTOECDYSTEROIDS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PROTEOMICS
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Fortini, E. A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Batista, D. S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Felipe, S. H. S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Silva, T. D.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Correia, L. N. F.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Farias, L. M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Otoni, W. C.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1ZoKuZND9H-7fItq5j1J62FHq5eSbqB6z/view?usp=drivesdk">https://drive.google.com/file/d/1ZoKuZND9H-7fItq5j1J62FHq5eSbqB6z/view?usp=drivesdk</a>
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942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-19389 25.06.2025 25.06.2025 Documentos solicitados