نتایج جستجو برای: tomato fruit ripening

تعداد نتایج: 96696  

Journal: :Plant physiology 2006
Fernando Carrari Charles Baxter Björn Usadel Ewa Urbanczyk-Wochniak Maria-Ines Zanor Adriano Nunes-Nesi Victoria Nikiforova Danilo Centero Antje Ratzka Markus Pauly Lee J Sweetlove Alisdair R Fernie

Tomato (Solanum lycopersicum) is a well-studied model of fleshy fruit development and ripening. Tomato fruit development is well understood from a hormonal-regulatory perspective, and developmental changes in pigment and cell wall metabolism are also well characterized. However, more general aspects of metabolic change during fruit development have not been studied despite the importance of met...

Journal: :Plant physiology 1995
T Miki M Yamamoto H Nakagawa N Ogura H Mori H Imaseki T Sato

Ethylene is a plant hormone that has an essential role in fruit ripening (Yang and Hoffman, 1984; Kende, 1993). ACC synthase (S-adenosyl-L-methionine methylethioadenosine-lyase, EC 4.4.1.14), which is encoded by a multigene family, plays a regulatory role in ethylene production. Severa1 genes for ACC synthase have been isolated from tomato (Rottmann et al., 1991), mung bean (Botella et al., 199...

2009
Diego Orzaez Aurora Medina Sara Torre José Luis Rambla Asun Fernández-del-Carmen Eugenio Butelli Cathie Martin Antonio Granell

Virus-induced gene silencing (VIGS) is a powerful tool for reverse genetics in tomato (Solanum lycopersicum). However, the irregular distribution of the effects of VIGS hampers the identification and quantification of nonvisual phenotypes. To overcome this limitation, a visually traceable VIGS system was developed for fruit, comprising two elements: (1) a transgenic tomato line (Del/Ros1) expre...

2011
Graham B. Seymour Carol D. Ryder Volkan Cevik John P. Hammond Alexandra Popovich Graham J. King Julia Vrebalov James J. Giovannoni Kenneth Manning

Climacteric and non-climacteric fruits have traditionally been viewed as representing two distinct programmes of ripening associated with differential respiration and ethylene hormone effects. In climacteric fruits, such as tomato and banana, the ripening process is marked by increased respiration and is induced and co-ordinated by ethylene, while in non-climacteric fruits, such as strawberry a...

Journal: :Nucleic acids research 1987
M J Holdsworth C R Bird J Ray W Schuch D Grierson

Messenger RNAs homologous to a cDNA clone (pTOM 13) derived from a ripe-tomato-specific cDNA library are expressed during tomato fruit ripening and after the wounding of leaf and green fruit material. Both responses involve the synthesis of the hormone ethylene. Accumulation of the pTOM 13--homologous RNA during ripening is rapid and sustained, and reaches its maximum level in orange fruit. Fol...

Journal: :Plant physiology 2007
Thanh D Phan Wen Bo Gill West Grantley W Lycett Gregory A Tucker

Pectinesterase (PE; E.C. 3.1.1.11) is an enzyme responsible for the demethylation of galacturonyl residues in high-molecular-weight pectin and is believed to play an important role in cell wall metabolism. In this study, Pmeu1, a ubiquitously expressed PE gene, has been characterized by antisense suppression in tomato (Solanum lycopersicum). Transgenic tomato plants showed reduced PE activity l...

2002
Sabine Cordes Jill Deikman Linda J. Margossian Robert L. Fischer

To investigate mechanisms that control fruit development, we have begun experiments to identify proteins that control gene expression during tomato fruit ripening. We focused on the regulation of two different genes, E4 and E8, whose transcription is coordinately activated at the onset of fruit ripening. We report here that a DNA-binding protein specifically reacts with similar sequences flanki...

Journal: :Plant physiology 1993
H. J. Klee

The physiological effects of reduced ethylene synthesis in a transgenic tomato (Lycopersicon esculentum) line expressing 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase enzyme have been examined. Fruit from the transgenic line 5673 ripen significantly slower than control fruit when removed from the vine early in ripening. In contrast, fruit that remain attached to the plants ripen much mo...

2012
Yoshihiro Okabe Erika Asamizu Tohru Ariizumi Kenta Shirasawa Satoshi Tabata Hiroshi Ezura

Novel mutant alleles of an ethylene receptor Solanum lycopersicum ETHYLENE RESPONSE1 (SlETR1) gene, Sletr1-1 and Sletr1-2, were isolated from the Micro-Tom mutant library by TILLING in our previous study. They displayed different levels of impaired fruit ripening phenotype, suggesting that these alleles could be a valuable breeding material for improving shelf life of tomato fruit. To conduct p...

2016
Rui-Heng Wang Xin-Yu Yuan Lan-Huan Meng Ben-Zhong Zhu Hong-liang Zhu Yun-Bo Luo Da-Qi Fu

Ethylene is crucial in climacteric fruit ripening. The ethylene signal pathway regulates several physiological alterations such as softening, carotenoid accumulation and sugar level reduction, and production of volatile compounds. All these physiological processes are controlled by numerous genes and their expression simultaneously changes at the onset of ripening. Ethylene insensitive 2 (EIN2)...

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