| an assemblage of closteroviruses infects hawaiian ti (cordyline fruticosa l.). | the ti plant (cordyline fruticosa l.) is culturally important throughout most of polynesia and has considerable economic importance in hawai'i where the foliage is commonly used in cultural ceremonies as well as food and ornamental industries. in hawai'i, ringspot symptoms were recently observed on leaves of the common green variety of ti growing in kahalu'u on the island of o'ahu, and wailuku and hana on the island of maui. high molecular weight double-stranded (ds)rnas were isolated from the l ... | 2010 | 21153877 |
| population structure of pacific cordyline fruticosa (laxmanniaceae) with implications for human settlement of polynesia. | the polynesian-introduced cordyline fruticosa is used as a proxy for reconstructing human colonization patterns in oceania. because of its material, nutritional, medicinal, and religious importance, green-leaved c. fruticosa was transferred by polynesian settlers to virtually every habitable pacific island before european contact. previous studies propose that green-leaved c. fruticosa is unable to reproduce sexually. to confirm sterility, crosses between fertile and putatively sterile forms wer ... | 2007 | 21636452 |
| factors affecting xylene-contaminated air removal by the ornamental plant zamioculcas zamiifolia. | fifteen plant species-alternanthera bettzickiana, drimiopsis botryoides, aloe vera, chlorophytum comosum, aglaonema commutatum, cordyline fruticosa, philodendron martianum, sansevieria hyacinthoides, aglaonema rotundum, fittonia albivenis, muehlenbeckia platyclada, tradescantia spathacea, guzmania lingulata, zamioculcas zamiifolia, and cyperus alternifolius-were evaluated for the removal efficiency of xylene from contaminated air. among the test plants, z. zamiifolia showed the highest xylene re ... | 2014 | 24091527 |
| snails and slugs damaging the cut foliage, cordyline fruticosa and use of biorationals towards their management. | snails and slugs became a serious molluscan pests and damaging leaves of purple compacta, cordyline fruticosa extensively grown for export at green farm ltd, sri lanka. the export quality of leaves of c. fruticosa is lowered due to feeding of snails, achantina fulica (bowditch), opeas pyrgula schmacker and boettgerx and helix aspersa muller and slugs incurring great loss to cut foliage industry. paucity of information is available to understand snails and slugs damage and their host range that l ... | 2012 | 23885439 |
| assessment of attractiveness of plants as roosting sites for the melon fly, bactrocera cucurbitae, and oriental fruit fly, bactrocera dorsalis. | the use of toxic protein bait sprays to suppress melon fly, bactrocera cucurbitae (coquillett) (diptera: tephritidae), populations typically involves application to vegetation bordering agricultural host areas where the adults seek shelter ("roost"). although bait spray applications for suppression of oriental fruit fly, bactrocera dorsalis (hendel), populations have traditionally been applied to the host crop, rather than to crop borders, roosting by oriental fruit flies in borders of some crop ... | 2007 | 20334596 |
| extraction, preparation and application of pigments from cordyline fruticosa and hylocereus polyrhizus as sensitizers for dye-sensitized solar cells. | current study employs mixture of chlorophyll-anthocyanin dye extracted from leaves of cordyline fruticosa as new sensitizers for dye-sensitized solar cell (dsscs), as well as betalains dye obtained from fruit of hylocereus polyrhizus. among ten pigments solvents, the ethanol and methanol extracts revealed higher absorption spectra of pigments extracted from c. fruticosa and h. polyrhizus respectively. a major effect of temperature increase was studied to increase the extraction yield. the result ... | 2017 | 28213142 |
| effect of solvents on the extraction of natural pigments and adsorption onto tio2 for dye-sensitized solar cell applications. | nine solvents, namely, n-hexane, ethanol, acetonitrile, chloroform, ethyl-ether, ethyl-acetate, petroleum ether, n-butyl alcohol, and methanol were used to extract natural dyes from cordyline fruticosa, pandannus amaryllifolius and hylocereus polyrhizus. to improve the adsorption of dyes onto the tio2 particles, betalain and chlorophyll dyes were mixed with methanol or ethanol and water at various ratios. the adsorption of the dyes mixed with titanium dioxide (tio2) was also observed. the highes ... | 2015 | 25483560 |
| uptake of toluene and ethylbenzene by plants: removal of volatile indoor air contaminants. | air borne uptake of toluene and ethylbenzene by twelve plant species was examined. of the twelve plant species examined, the highest toluene removal was found in sansevieria trifasciata, while the ethylbenzene removal from air was with chlorophytum comosum. toluene and ethylbenzene can penetrate the plant׳s cuticle. however, the removal rates do not appear to be correlated with numbers of stomata per plant. it was found that wax of s. trifasciata and sansevieria hyacinthoides had greater absorpt ... | 2014 | 24530730 |
| differentiation and distribution of cordyline viruses 1-4 in hawaiian ti plants (cordyline fruticosa l.). | common green ti plants (cordyline fruticosa l.) in hawaii can be infected by four recently characterized closteroviruses that are tentative members of the proposed genus velarivirus. in this study, a reverse-transcription polymerase chain reaction (rt-pcr) assay developed to detect and distinguish cordyline virus 1 (cov-1), cov-2, cov-3, and cov-4 was used to determine: (i) the distribution of these viruses in hawaii; and (ii) if they are involved in the etiology of ti ringspot disease. one hund ... | 2013 | 23881274 |
| molecular characterization of closteroviruses infecting cordyline fruticosa l. in hawaii. | in hawaii, common green ti plants (cordyline fruticosa l.) have been shown to harbor cordyline virus 1 (cov-1) which, along with little cherry virus 1 (lchv-1), and grapevine leafroll-associated virus 7 (glrav-7), form a distinct clade within the family closteroviridae. preliminary work has indicated that, aside from cov-1, three additional closteroviruses may infect common green ti plants in hawaii. in this study, pyrosequencing was used to characterize the genomes of closteroviruses infecting ... | 2013 | 23467405 |
| primary and secondary thickening in the stem of cordyline fruticosa. | the growth in thickness of monocotyledon stems can be either primary, or primary and secondary. most of the authors consider this thickening as a result of the ptm (primary thickening meristem) and the stm (secondary thickening meristem) activity. there are differences in the interpretation of which meristem would be responsible for primary thickening. in cordyline fruticosa the procambium forms two types of vascular bundles: collateral leaf traces (with proto and metaxylem and proto and metaphl ... | 2010 | 21562694 |