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- 저자 : Luan-Mei Lu (검색결과 2 건)
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Han-hong Lan,Luan-mei Lu 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.6
Although limited progress have been made about pathogen system of Hibiscus rosa-sinensis and Hibiscus latent Fort Pierce virus (HLFPV), interaction between plant host and pathogen remain largely unknown, which led to deficiency of effective measures to control disease of hibiscus plants caused by HLFPV. In this study, infection of HLFPV in Hibiscus rosa-sinensis was firstly confirmed for the first time by traditional electron microscopy, modern reverse transcription polymerase chain reaction and RNA-seq methods in China (HLFPV-Ch). Sequence properties analyzing suggested that the full-length sequences (6,465 nt) of HLFPV-Ch had a high sequence identity and a similar genomic structure with other tobamoviruses. It includes a 5′-terminal untranslated region (UTR), followed by four open reading frames encoding for a 128.5-kDa replicase, a 186.5-kDa polymerase, a 31-kDa movement protein, 17.6-kDa coat protein, and the last a 3′-terminal UTR. Furthermore, HLFPV-Ch-derived virus-derived siRNAs (vsiRNAs) ant its putative target genes, reported also for the first time, were identified and characterized from disease Hibiscus rosa-sinensis through sRNAseq and Patmatch server to investigate the interaction in this pathogen systems. HLFPV-Ch-derived vsiRNAs demonstrated several general and specific characteristics. Gene Ontology classification revealed predicted target genes by vsiRNAs are involved in abroad range of cellular component, molecular function and biological processes. Taken together, for first time, our results certified the HLFPV infection in China and provide an insight into interaction between HLFPV and Hibiscus rosa-sinensis.
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Identification and characterization of CONSTANS-like genes from Curcuma alismatifolia
Yuan-Yuan Li,Xiao-Huang Chen,Hui-Wen Yu,Qi-Lin Tian,Luan-Mei Lu 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.2
The CONSTANS ( CO ) and CONSTANS - like ( COL ) genes have an important role in the regulation of fl owering in photoperiod-sensitive plants. However, information on the molecular characterization of COL genes in Curcuma alismatifoliais very limited. The objective of this study was to identify and evaluate 8 COL homologs ( CaCOLs ) in the C. alismatifoliatranscriptome. Their structures, phylogenetic relationships and expressing patterns under short-day (SD) and long-day (LD)contexts were investigated. Our results showed that CaCOLs were classifi ed into three groups: CaCOL3 and CaCOL6 in groupI were the most CO - like genes; CaCOL7 and CaCOL8 in group II contains only one B-box; CaCOL1 to 2 and CaCOL4 to 5formed the group III. Phylogenetic analysis of the CaCOLs in Arabidopsis, Rice, Barley, Malaccensis and C. alismatifoliademonstrated that both the B-box and CCT domains were conserved in dicot and monocot plants, but diff erent groups ofCOL genes evolved independently. Diff erent patterns of mRNA accumulation in C. alismatifolia leaves in response to SDand LD treatments were observed. CaCOL1 , CaCOL2 , CaCOL4 and CaCOL7 showed signifi cantly higher expressions inLD treatment than that of SD, indicating that they were potential fl owering inducers, and are candidate genes for research infl owering regulation and circadian controlling in C. alismatifolia plants. Altogether, our study facilitates successful regulationof fl owering in Curcuma species and provides insights for future molecular breeding programs.
ScienceON
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