Petroselinum Crispum
Mostrando 13-24 de 52 artigos, teses e dissertações.
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13. Eryngium foetidum, Petroselinum crispum e Coriandrum sativum: novas hospedeiras de Oidiopsis taurica no Brasil
Relata-se a infecção natural de plantas de chicória da Amazônia (Eryngium foetidum), coentro (Coriandrum sativum) e salsa (Petroselinum crispum), cultivados em casas de vegetação e campo na Embrapa Hortaliças, Brasília, DF, por Oidiopsis taurica. A provável fonte de inóculo foram plantas doentes de pimentão (Capsicum annuum) e tomate (Lycopersicon
Fitopatologia Brasileira. Publicado em: 2004-06
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14. Produção e renda bruta de cebolinha e de salsa em cultivo solteiro e consorciado
Foram estudadas a cebolinha 'Todo Ano' e a salsa 'Lisa', em cultivos solteiro e consorciado, arranjadas no delineamento experimental de blocos casualizados, com três tratamentos e oito repetições. A propagação da cebolinha foi por mudas e a da salsa por sementes. Na colheita, feita aos 90 dias após o início da propagação, nas duas espécies, foram a
Horticultura Brasileira. Publicado em: 2003-09
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15. Biochemical Plant Responses to Ozone (IV. Cross-Induction of Defensive Pathways in Parsley (Petroselinum crispum L.) Plants).
Parsley (Petroselinum crispum L.) is known to respond to ultraviolet irradiation by the synthesis of flavone glycosides, whereas fungal or elicitor stress leads to the synthesis of furanocoumarin phytoalexins. We tested how these defensive pathways are affected by a single ozone treatment (200 nL L-1; 10 h). Assays were performed at the levels of transcripts
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16. Induction by fungal elicitor of S-adenosyl-L-methionine synthetase and S-adenosyl-L-homocysteine hydrolase mRNAs in cultured cells and leaves of Petroselinum crispum.
Treatment of cultured parsley (Petroselinum crispum) cells with fungal elicitor rapidly activates transcription of many genes encoding specific steps in pathogen defense-related pathways. We report evidence that three cDNAs corresponding to such genes represent two key enzymes of the activated methyl cycle. Two cDNAs are derived from distinct members of the
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17. Pretreatment of Parsley (Petroselinum crispum L.) Suspension Cultures with Methyl Jasmonate Enhances Elicitation of Activated Oxygen Species.
Suspension-cultured cells of parsley (Petroselinum crispum L.) were used to demonstrate an influence of jasmonic acid methyl ester (JAME) on the elicitation of activated oxygen species. Preincubation of the cell cultures for 1 d with JAME greatly enhanced the subsequent induction by an elicitor preparation from cell walls of Phytophtora megasperma f. sp. gly
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18. Induction of 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase activity by fungal elicitor in cultures of Petroselinum crispum.
The effects of a cell wall fraction of the fungus Phytophthora megasperma on the enzymatic activities of 3-deoxy-D-arabino-heptulosonate-7-phosphate (DAHP) synthase (EC 4.1.2.15) in extracts of cultured parsley cells (Petroselinum crispum) were examined. The specific activity of a plastidic form of DAHP synthase, designated DS-Mn by Ganson et al. [Ganson, R.
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19. Rapid, transient, and highly localized induction of plastidial ω-3 fatty acid desaturase mRNA at fungal infection sites in Petroselinum crispum
Parsley (Petroselinum crispum) plants and suspension-cultured cells have been used extensively for studies of non-host-resistance mechanisms in plant/pathogen interactions. We now show that treatment of cultured parsley cells with a defined peptide elicitor of fungal origin causes rapid and large changes in the levels of various unsaturated fatty acids. Whil
The National Academy of Sciences of the USA.
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20. Immediate Activation of Respiration in Petroselinum crispum L. in Response to the Phytophthora megasperma f. sp. Glycinea Elicitor.
Treatment of parsley (Petroselinum crispum L.) cell cultures with the Phytophthora megasperma elicitor isolated from the fungus Phytophthora megasperma f. sp. Glycinea caused an immediate increase in the rate of respiratory CO2 evolution in the dark. The respiratory response was biphasic, showing a rapid enhancement in the first 20 min and then a slower incr
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21. In situ localization of light-induced chalcone synthase mRNA, chalcone synthase, and flavonoid end products in epidermal cells of parsley leaves
Methods involving in situ RNA hybridization, immunohistochemistry, and microspectrophotometry of individual cells were used to localize the mRNA encoding chalcone synthase (the key enzyme of flavonoid biosynthesis), the enzyme protein, and the biosynthetic end products in cross sections of parsley leaves (Petroselinum crispum). The light-dependent, sequentia
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22. Conditioning of Parsley (Petroselinum crispum L.) Suspension Cells Increases Elicitor-Induced Incorporation of Cell Wall Phenolics.
The elicitor-induced incorporation of phenylpropanoid derivatives into the cell wall and the secretion of soluble coumarin derivatives (phytoalexins) by parsley (Petroselinum crispum L.) suspension cultures can be potentiated by pretreatment of the cultures with 2,6-dichloroisonicotinic acid or derivatives of salicylic acid. To investigate this phenomenon fu
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23. Non-self recognition, transcriptional reprogramming, and secondary metabolite accumulation during plant/pathogen interactions
Disease resistance of plants involves two distinct forms of chemical communication with the pathogen: recognition and defense. Both are essential components of a highly complex, multifaceted defense response, which begins with non-self recognition through the perception of pathogen-derived signal molecules and results in the production, inter alia, of antibi
National Academy of Sciences.
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24. Biphasic Temporal and Spatial Induction Patterns of Defense-Related mRNAs and Proteins in Fungus-Infected Parsley Leaves.
Previous experiments using in situ RNA hybridization have shown that the mRNAs encoding phenylalanine ammonia-lyase, 4-coumarate:coenzyme A ligase, and pathogenesis-related protein 1 accumulated transiently around fungal infection sites in parsley (Petroselinum crispum) leaf buds. These studies have now been extended by (a) analyzing different stages of the