Papel e caracterização da polifenoloxidase em hastes de ave-do-paraíso (Strelitzia reginae Ait.)

Karsten, Juliane; Chaves, Daniela Vieira; Finger, Fernando Luíz; Barbosa, José Geraldo

doi:10.14295/rbho.v19i2.462

Cited by 2 publications

(1 citation statement)

References 35 publications

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“…Strelitzia reginae , also well-known as “bird of paradise”, is one of the most commercially cultivated species of Strelitzia in the world ( Karsten 2009 ). This species was first introduced into Europe from South Africa in 1770 for its unique flowers, which are characterized by vivid orange and bright purple or blue inflorescens, making it a highly sought-after cut flower crop ( Van Jaarsveld 2008 , Xaba 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Pleiocarpon gen. nov. and a new species of Ilyonectria causing basal rot of Strelitzia reginae in Italy

et al. 2017

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During 2015, a new basal rot disease was observed on potted plants of Strelitzia reginae in an ornamental nursery located in eastern Sicily. Isolations from symptomatic parts of these diseased plants consistently yielded cylindrocarpon-like isolates. Multigene analyses of the partial gene regions of 28S large subunit nrDNA, β-tubulin, histone H3, translation elongation factor 1-alpha, internal transcribed spacer region and intervening 5.8S nrRNA gene, and RNA polymerase II second largest subunit genes, supported by morphological characters supported the recognition of a new genus, Pleiocarpon based on P. strelitziae sp. nov., and a new Ilyonectria species, described here as I. strelitziae sp. nov. The pathogenicity of both I. strelitziae and P. strelitziae were confirmed on young plants cultivated under controlled conditions in a growth chamber. Both cylindrocarpon-like fungi were pathogenic to S. reginae and reproduced symptoms similar to those observed in the nursery. Of the two species, P. strelitziae was more aggressive than I. strelitziae, resulting in the death of all inoculated plants.

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Section: Introductionmentioning

confidence: 99%

Pleiocarpon gen. nov. and a new species of Ilyonectria causing basal rot of Strelitzia reginae in Italy

et al. 2017

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Capacidade de reidratação de Lilium pumilum Redouté

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Tolentino

Oliveira

et al. 2016

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Among the ornamental flowers marketed as flower vase or cut, there is Lilium pumilum belonging to the Liliaceae family, which is characterized by having several stems with inflorescences containing buds, easy propagation and varied coloring. The marketing of cut flowers is a promising activity; however the transport demands attention due to water stress, which can impair the absorption of water and rehydration, yielding a negative water balance, since the absorption rate is less than the rate transpiration. Based on this assumption, the use of appropriate techniques that allow extending the longevity of the flowers is required. This study aimed to analyze the effect of storage time on the recovery of dry turgor L. pumilum. For this flower stems were dry-stored for 0, 12, 24, 36 and 48 hours. At the end of each period, the inflorescences returned to the water, and analyzed every 6 hours for changes in relative water content of the tepals (flower), orange buds and leaves. Daily evaluations were changes of weight and longevity. The relative water content of flower there was a sharp drop during periods of dry storage, but with recovery after 6 hours in water with greater efficiency in the treatment of 48 hours, with recovery of 86.8% relative to the control. As the relative water content of the button, all treatments were recovered. Regarding the variation of fresh mass, there was variation with the period of dry storage, and only the stems that remained for 12 to 24 hours to dry obtained superior recovery for loss of initial fresh weight within the first six hours of hydration at 118.7 and 26.01%, respectively. The average longevity of the stems was unchanged (6.8 days) for no treatment. Therefore, regardless of the duration of dry storage, there was recovery of turgor, indicating that flower stems of L. pumilum can be transported dry for periods up to 48 hours.

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Papel e caracterização da polifenoloxidase em hastes de ave-do-paraíso (Strelitzia reginae Ait.)

Cited by 2 publications

References 35 publications

Pleiocarpon gen. nov. and a new species of Ilyonectria causing basal rot of Strelitzia reginae in Italy

Pleiocarpon gen. nov. and a new species of Ilyonectria causing basal rot of Strelitzia reginae in Italy

Capacidade de reidratação de Lilium pumilum Redouté

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