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• W4200490019 endingPage "1308" @default.
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• W4200490019 abstract "Phenylalanine ammonia-lyase (PAL) is a key gateway enzyme that connects the phenylpropanoid pathway to primary metabolism. The phenylpropanoid pathway plays a vital role in the growth and environmental adaptation of many plants leading to the production of valuable bioactive compounds with industrial and medical applications. In the present study, nine putative PAL genes from three orchids were identified; five in Apostasia shenzhenica and two each in Dendrobium catenatum and Phalaenopsis equestris. Eighteen motifs and four major conserved functional domains were identified as reported in PAL proteins of other species. All the nine PALs were stable based on their computed physicochemical properties and localized in the cytoplasm. The three-dimensional structures of PALs revealed a homo-tetrameric structure consisting of four identical subunits. A total of 21 cis-regulatory elements with known functions were identified from the promoter regions of all PALs which are responsible for various plant responses to light, stress and growth regulators like auxins, gibberellins and abscisic acid. Phylogenetic analysis showed that the studied PAL proteins clustered in two major clades (clade I and II), placing dicot and monocot PALs in two separate monophyletic clades. In silico gene expression of the identified PALs in different vegetative and reproductive tissues revealed the differential expressions based on tissue type and disclosed that the expression of PAL genes was upregulated in all the tissues examined with an exception of PePAL leaf samples where no expression was detected, however, the same being highly expressed in reproductive tissues (PePAL1-labellum; PePAL2-sepal). In case of AsPALs, the expression was found to be highest in reproductive tissues (AsPAL4-maximum in inflorescence). On the other hand, the expression of DcPALs was found to be highest in vegetative tissues (DcPAL2-maximum in root). Based on the medicinal importance of orchids and the significant role of PAL genes in synthesis of bioactive compounds, the functional characterization of PAL genes can be further exploited in genetic improvement of medicinal orchids.Communicated by Ramaswamy H. Sarma" @default.
• W4200490019 created "2021-12-31" @default.
• W4200490019 creator A5000268283 @default.
• W4200490019 creator A5024053073 @default.
• W4200490019 creator A5034464959 @default.
• W4200490019 date "2021-12-29" @default.
• W4200490019 modified "2023-10-11" @default.
• W4200490019 title "Genome-wide identification and analysis of the <i>PAL</i> genes from the orchids <i>Apostasia shenzhenica, Dendrobium catenatum</i> and <i>Phalaenopsis equestris</i>" @default.
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• W4200490019 doi "https://doi.org/10.1080/07391102.2021.2019120" @default.
• W4200490019 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34963417" @default.
• W4200490019 hasPublicationYear "2021" @default.
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