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| 1 | The Tomato Hybrid Proline-rich Protein regulates the abscission zone competence to respond to ethylene signals显示文摘The Tomato Hybrid Proline-rich Protein(THyPRP)gene was specifically expressed in the tomato(Solanum lycopersicum)flower abscission zone(FAZ),and its stable antisense silencing under the control of an abscission zone(AZ)-specific promoter,Tomato Abscission Polygalacturonase4,significantly inhibited tomato pedicel abscission following flower removal.For understanding the THyPRP role in regulating pedicel abscission,a transcriptomic analysis of the FAZ of THyPRP-silenced plants was performed,using a newly developed AZ-specific tomato microarray chip.Decreased expression of THyPRP in the silenced plants was already observed before abscission induction,resulting in FAZ-specific altered gene expression of transcription factors,epigenetic modifiers,post-translational regulators,and transporters.Our data demonstrate that the effect of THyPRP silencing on pedicel abscission was not mediated by its effect on auxin balance,but by decreased ethylene biosynthesis and response.Additionally,THyPRP silencing revealed new players,which were demonstrated for the first time to be involved in regulating pedicel abscission processes.These include:gibberellin perception,Ca2+-Calmodulin signaling,Serpins and Small Ubiquitin-related Modifier proteins involved in post-translational modifications,Synthaxin and SNARE-like proteins,which participate in exocytosis,a process necessary for cell separation.These changes,occurring in the silenced plants early after flower removal,inhibited and/or delayed the acquisition of the competence of the FAZ cells to respond to ethylene signaling.Our results suggest that THyPRP acts as a master regulator of flower abscission in tomato,predominantly by playing a role in the regulation of the FAZ cell competence to respond to ethylene signals. | Srivignesh Sundaresan Sonia Philosoph-Hadas Chao Ma Cai-Zhong Jiang Joseph Riov Raja Mugasimangalam Betina Kochanek Shoshana Salim Michael SReid Shimon Meir | 2018 | Horticulture Research2018，5，1： | 2 |
| 2 | Auxin, biosynthesis of ethylene and sex expression in cucumber (Cucumis sativus)显示文摘 | Trebitsh T Rudich J Riov J | 1987 | Plant Growth Regulation1987，5，2： | 1 |
| 3 | A research note:polygalacturonase activity in citrus fruit显示文摘 | Riov J | 1974 | J Food Sci1974，40，： | 1 |
| 4 | Competitive Hybridi-zation:Teory and Application in Isolation and Quantification of Differentially Regulated Genes显示文摘 | Guang Yan Zhong Joseph Riov Raphael Goren | 2000 | Analytical Biochemistry2000，282，： | 1 |
| 5 | Characterization of an ethylene-induced esterase gene isolated from Citms sinensis by competitive hybridization显示文摘 | ZHONG G Y GOREN R RIOV J SISLE EC HOLLAND D | 2001 | Physiologia Plantarum2001，113，： | 1 |
| 6 | Comparison of move- ment and metabolism of indole - 3 - acetic acid and in- dole- 3 -butyric acid in mung bean cuttings 显示文摘 | Wiesman Z Riov J Epstein E | 2006 | Physiologia Plantarum2006，74，3： | 1 |
| 7 | Interrelationship between phosphorus toxicity and sugar metabolism in Verticordia plumosa L显示文摘 | Avner Silber Jaacov Ben-Jaacov Alexander Ackerman Asher Bar-Tal Irit Levkovitch Tania Matsevitz-Yosef Dvora Swartzberg Josef Riov David Granot | 2002 | Plant and Soil2002，，2： | 1 |
| 8 | Histochemical evidence for the relationship between peel damage and the accumulation of phenolic compounds in gamma- irradiated citrus fruit 显示文摘 | RIOV J | 1975 | Radiation Botany1975，15，： | 1 |
| 9 | Molecular and physiological evidence suggests the existence of a system Ⅱ -like pathway of ethylene production in non-climacteric citrus fruit显示文摘 | Katz E Lagunes PM Riov J | 2004 | Planta2004，219，： | 1 |
| 10 | Isolation of ethylene-induced MAP kinase genes from citrus fruit abscission zone 显示文摘 | Zhong G Y Riov J Goren R | 1996 | Acta Hortic1996，463，： | 1 |
| 11 | Induction of a citrus gene highly homologous to plant andyeast thi genes involved in thiamine biosynthesis during natural and ethylene-induced fruit maturation 显示文摘 | JACOB-WILK D GOLDSCHMIDT E E RIOV J | 1997 | Plant MolBiol1997，35，： | 1 |
| 12 | Autoinhibition of ethylene production in citrus peeldiscs显示文摘 | YANG S F | 1982 | Plant Physiol1982，69，： | 1 |
| 13 | Ethylene and auxin-ethylene interaction in adventitious root formation in mung bean (Vigna radiata) cuttings 显示文摘 | RIOV J YANG S F | 1989 | Plant Growth Regul1989，8，： | 1 |
| 14 | Role of ethylene biosynthesis and auxin content and transport in high temperature induced abscission of pepper reproductive organs显示文摘 | Huberman M Riov J Aloni B | 1997 | Journal of Plant Growth Regulation1997，16，： | 1 |
| 15 | Autoinhibition of ethylene production in citrus peel discs显示文摘 | Riov J Yang S F | 1982 | Plant Physiol1982，69，： | 1 |
| 16 | Polygalacturonase from citrus leaf explants显示文摘 | Riov JA | 1974 | Plant Physiol1974，53，： | 1 |
| 17 | Characterization and rooting ability of indole-3-butyric acid conjugates formed during rooting of mung beancutting显示文摘 | Wiesman Z Riov J Epsteis E | 1989 | Plant Physiology1989，91，： | 1 |
| 18 | Characterization of Abscisic Acid-Induced Ethylene Production in Citrus Leaf and Tomato Fruit Tissues显示文摘 | Joseph Riov Eliahu Dagan Raphael Goren | 1990 | Plant Physiology1990，92，： | 1 |
| 19 | Effects of exogenous ethylene on ethylene production in citrus leaf tissue 显示文摘 | J Riov S F Yang | 1982 | Plant Physiology1982，70，1： | 1 |
| 20 | Characterization androoting ability of indole-3-butyric acid conjugatesformed during rooting of mung bean cuttings 显示文摘 | Wiesman Z Riov J Epstein E | 1989 | Plant Physiol1989，91，3： | 1 |
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