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Hibiscus rosa-sinensis Linn., family Malvaceae, is an attractive horticultural plant originating from China. Five viruses infecting H. rosa-sinensis that have been characterized previously are Hibiscus chlorotic ringspot virus (HCRSV, genus Carmovirus), Hibiscus latent ringspot virus (HLRSV, genus
During the summers of 2008 and 2010, leaf and shoot blight, wilting of the tips of young infected shoots, and cankers with brown discoloration on twigs were observed on six dog rosehip (Rosa canina) plants from four different private orchards in Eregli district of Konya Province, Turkey. Disease
Ralstonia pseudosolanacearum (Ralstonia solanacearum phylotype I) isolates found in stunted, yellowing, and wilted ornamental rose (Rosa spp.) were assessed for their pathogenic ability in two rose cultivars (cv. "Armando" and cv. "Red Naomi") and in four solanaceous crops: tomato (Solanum
Rosa chinensis, an important ancestor species of Rosa hybrida, the most popular ornamental plant species worldwide, produces flowers with diverse colors and fragrances. The R2R3-MYB transcription factor family controls a wide variety of plant-specific metabolic processes, especially
Anthocyanidin reductase (ANR) is a key enzyme involved in the biosynthesis of proanthocyanidins (PAs) and plays a role in the plant stress response. However, the mechanism by which ANR confers stress tolerance in plants is not understood. Here, we report the isolation of RrANR, the homologous gene
Plants often develop the capacity to tolerate moderate and reversible environmental stresses, such as drought, and to re-establish normal development once the stress has been removed. An example of this phenomenon is provided by cut rose (Rosa hybrida) flowers, which experience typical reversible
In this study, a gene with a full-length cDNA of 1422 bp encoding 473 amino acids, designated RrGT2, was isolated from R. rugosa 'Zizhi' and then functionally characterized. RrGT2 transcripts were detected in various tissues and were proved that their expression patterns corresponded with
Flavonoids play critical roles in plant responses to various stresses. Few studies have been reported on what the mechanism of activating flavonoid biosynthesis in plant responses to wounding and oxidation is. In this study, flavonoid metabolites and many MYB transcript factors from Rosa rugosa were
A new begomovirus, tentatively named hibiscus yellow vein leaf curl virus (HYVLCV), was identified in Hibiscus rosa-sinensis plants showing symptoms of leaf curl, yellow vein, and vein enation on the undersides of the leaf in Taiwan. Sequence analysis of the full-length HYVLCV genome from the
Virus-induced gene silencing (VIGS) is a useful tool for functional characterization of genes in plants. Unfortunately, the efficiency of infection by Tobacco rattle virus (TRV) is relatively low for some non-Solanaceae plants, which are economically important, such as rose (Rosa sp.). Here, to
Hibiscus spp. are popular ornamental plants in New Zealand. The genus is susceptible to Hibiscus chlorotic ringspot virus (HCRSV), a member of the genus Carmovirus, which has been reported in Australia, El Salvador, Singapore, the South Pacific Islands, Taiwan, Thailand, and the United States (1-4).
Flower color is the main character throughout the plant kingdom. Though substantial information exists regarding the structural and regulatory genes involved in anthocyanin and flavonol biosynthesis, little is known that what make a diverse white vs. red color flower in natural species. Here, the
In this cross sectional and descriptive study, secondary school students trom the city of Santa Rosa were questioned about their beliefs about cannabis and their risk perception derived from it. The sample consisted in 83 male and 71 female 17 year-old teenagers. On the one hand, it was found that
We isolated AGAMOUS-like cDNA clones called MASAKO C1-C6 (C4-C6 are 3' or 5' partial cDNA clones) and MASAKO D1 from wild rose (Rosa rugosa Thunb. ex Murray). We found that MASAKO C1 was a homologue of AGAMOUS on the basis of sequence similarity, conservation of intron positions, and stamen- and