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Abstract. We cloned and characterized four independent genes encoding BURP domain-containing proteins from mangrove, Bruguiera gymnorrhiza, two as cDNA (BgBDC2 and BgBDC3) and the other two as genomic DNA (S2 and L3). The putative coding sequences of S2 and L3 were computationally analysed and designated as BgBDC1 and BgBDC4, respectively. These four genes are highly homologous to the dehydration-responsive...
The functional response to salt stress was studied in three Populus alba L. genotypes, from three localities of Italy: genotype 6K3 from northern Italy, genotype 2AS11 from middle-southern Italy, and genotype 14P11 from a coastal zone in southern Italy. Plants of the three genotypes were submitted to a progressive salt stress by NaCl irrigation during 4 weeks. The severity of symptoms was linked to...
The shikimate pathway plays a central role in the formation of aromatic intermediates in the production of stilbenes, flavonoids and lignins. Ozone effects on the levels of transcripts in this pathway were studied in saplings of European beech. Complementary DNA (cDNA) clones of all genes of this pathway were isolated, and quantitative real-time RT-PCR (qRT-PCR) using RNA isolated from leaves of ozone-treated...
Ocotea catharinensis is a basal angiosperm and an endangered tree species from the Brazilian Atlantic Rain Forest. Despite its economical and ecological importance, mass-propagation of this species is hampered by seldom-produced short-lived seeds, and in vitro propagation is challenged by frequently malformed somatic embryos. Therefore, O. catharinensis somatic embryos are also a good experimental...
Genes of cellulose and lignin synthesis are important for tree breeding because their activity greatly affects wood properties as well as general growth. The expression (transcript abundance) of genes of cellulose and lignin synthesis in tangential xylem scrapes at breast height sampled at the end of June (middle of active growing season) was related to wood properties in five fast-growing and six...
The ethylene response factor (ERF) genes are a subfamily of transcription factors containing a single AP2/ERF domain, which play crucial roles in plant development and response to biotic and abiotic stresses. In the present study, 16 ERF genes (named ThERF1–ThERF16) were isolated from Tamarixhispida, and their expression in response to salt, drought and ABA treatment was investigated using real-time...
Key messageFour PM H+-ATPase genes fromHevea brasiliensiswere identified, and their structure, phylogenetic relationships, expression patterns and roles in latex metabolism were analyzed. Abstract Plasma membrane (PM) H+-ATPases play important roles in various cellular processes and stress responses. However, information on the PM H+-ATPase gene family of Hevea brasiliensis is limited...
Key messageA holistic approach, molecular and eco-physiological, has provided a better understanding of the response of eucalyptus and poplar genotypes to salt stress. Different tolerance mechanisms with varying degrees of effectiveness as well as differences in the response of genes linked to xylem differentiation have been identified. Abstract We studied the behavior...
Key messageThe alternative pathway activity involves in the species-specific responses to rust infection in two desert sister poplars, which may associate withAOXgenes expression regulation and adaptive evolution. Abstract Rust fungi are globally important poplar tree pathogens. However, little is known about species-specific responses to rust infection in poplars and the associated changes in alternative...
Key messageThe differential expression of 36 proteins plays a central role in culm elongation during photoheterotrophic status, which was involved in complicated biochemical and molecular processes, including replication, transcription, translation, energy metabolism, central intermediary metabolism, and woody tissue photosynthesis. Abstract Dendrocalamus sinicus is known as the largest bamboo species...
Key message Transposable elements are abundant in the promoter regions of moso bamboo genome and influence the expression of downstream genes. Abstract As important components of animal and plant genomes, transposable elements (TEs) can shape host genomes and regulate gene expression. In the present study, TEs distributed in the promoter regions of moso bamboo genome were systematically investigated...
Key message The physiological responses of nine commonly planted North-American hybrid poplars to drought was evaluated, resulting in a ranking of drought resistance. Indicator genes for drought response processes were scored for differences in expression levels in the most sensitive and resistant clones, confirming levels of drought stress and differences consistent with roles in drought resistance...
Key message In this study, we have identified 120 UGT genes in pigeonpea and performed a bioinformatics analysis, which showed their tissue-specific and stress-induced expression patterns. Abstract Family 1 UDP-glycosyltransferases (UGTs; EC 2.4.1.x) are enzymes that glycosylate aglycones into glycoside-associated compounds. They play an important role in plant resistance to abiotic stresses by...
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