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Chalcone synthase as a reporter in virus-induced gene silencing studies of flower senescence
Agrobacterium-mediatedinfection of petunia (Petunia hybrida) plants with tobacco rattle virus (TRV) bearing fragments of Petuniagenes resulted in systemic infection and virus-induced gene silencingExpand
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Identification of genes associated with perianth senescence in Daffodil (Narcissus pseudonarcissus L. ‘Dutch Master’)
We used a PCR-based subtractive procedure to isolate genes that increased in abundance in the perianth of incipiently senescent daffodil (Narcissus pseudonarcissus L. ‘Dutch Master’) flowers. UsingExpand
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Role of abscisic acid in perianth senescence of daffodil (Narcissus pseudonarcissus"Dutch Master").
Daffodil (Narcissus pseudonarcissus L. 'Dutch Master') flowers detached at the base of their ovaries and held with their cut ends in 10-100 microM abscisic acid (ABA) senesced prematurely. SymptomsExpand
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Thidiazuron —a potent inhibitor of leaf senescence in Alstroemeria
Abstract The time to flower senescence and leaf yellowing in 20 cut flower cultivars of Alstroemeria was studied. In deionized water (DI), the time to abscission of the first petal ranged from 9 toExpand
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Hormonal regulation of leaf senescence through integration of developmental and stress signals
Leaf senescence is a genetically controlled dismantling programme that enables plants to efficiently remobilise nutrients to new growing sinks. It involves substantial metabolic reprogramming whoseExpand
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Activation of R-mediated innate immunity and disease susceptibility is affected by mutations in a cytosolic O-acetylserine (thiol) lyase in Arabidopsis.
O-acetylserine (thiol) lyases (OASTLs) are evolutionarily conserved proteins among many prokaryotes and eukaryotes that perform sulfur acquisition and synthesis of cysteine. A mutation in theExpand
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Role of ethylene in perianth senescence of daffodil (Narcissus pseudonarcissus L. ‘Dutch Master’)
Abstract Daffodil (Narcissus pseudonarcissus L. ‘Dutch Master’) flowers senesced prematurely when exposed to 1 μl l−1 ethylene. The hormone caused watersoaking of the perianth, a symptom not seen inExpand
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Expression of 1-aminocyclopropane-1-carboxylate oxidase during leaf ontogeny in white clover.
We examined the expression of three distinct 1-aminocyclopropane-1-carboxylic acid oxidase genes during leaf ontogeny in white clover (Trifolium repens). Significant production of ethylene occurs atExpand
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Staying green postharvest: how three mutations in the Arabidopsis chlorophyll b reductase gene NYC1 delay degreening by distinct mechanisms.
Stresses such as energy deprivation, wounding and water-supply disruption often contribute to rapid deterioration of harvested tissues. To uncover the genetic regulation behind such stresses, aExpand
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Methods for transient assay of gene function in floral tissues
BackgroundThere is considerable interest in rapid assays or screening systems for assigning gene function. However, analysis of gene function in the flowers of some species is restricted due to theExpand
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