Thigmomorphogenesis in Bryonia dioica: Early Events in Ethylene Biosynthesis Pathway

Jaegher, G. De; Boyer, Nicole; Bon, Marie‐Claude; Gaspar, Thomas

doi:10.1016/s0015-3796(87)80037-9

Cited by 28 publications

(14 citation statements)

References 26 publications

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“…Ethylene production by internodes rapidly increased after rubbing [6,12] but there was little difference between control and experimental calli (Fig. 5A).…”

Section: Ethylene Production Acc To Ethylene Conversion and Acc Conmentioning

confidence: 97%

“…ACC extraction and measurement were performed using the method of Lizada & Yang [26] as described previously [5,12,24].…”

Section: Peroxidase Activity and Isoperoxidasesmentioning

confidence: 99%

“…The extent of such a biochemical inheritance has been investigated here using calli originated from internodes (rubbed and non-rubbed) of Bryonia dioica. Rubbing young internodes of the intact plant induces rapid biochemical changes resulting in precocious lignification and reduced growth [5,6,7,12,13].…”

Section: Introductionmentioning

confidence: 99%

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Carry-over of thigmomorphogenetic characteristics in calli derived fromBryonia dioica internodes

Bourgeade

Boyer

Jaegher

et al. 1989

Plant Cell Tiss Organ Cult

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Calli have been initiated in vitro from young internodes (control and rubbed) of Bryonia dioica, where previously it had been shown, using intact plants, that rubbing induced limited growth through enhanced lignification. Calli derived from rubbed internodes were somewhat more compact and showed biochemical changes, i.e. enhanced activity of total peroxidase and isoperoxidases, enhanced production of l-aminocyclopropane-l-carboxylic acid (ACC) and ethylene, enhanced tissue capacity to convert ACC into ethylene, enhanced activity of phenylalanine ammonia-lyase (PAL) and higher content of lignin, which characterized rubbed internodes. Differences in ethylene metabolism between the two types of calli tended to fade from the third week onwards of initial culture, whereas lignin content, peroxidase activity and peroxidase isoenzyme pattern appeared to be more persistant rubbinginduced markers for several subcultures. The results point to the persistance of environmentally induced changes in gene expression.

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“…Ethylene production by internodes rapidly increased after rubbing [6,12] but there was little difference between control and experimental calli (Fig. 5A).…”

Section: Ethylene Production Acc To Ethylene Conversion and Acc Conmentioning

confidence: 97%

“…ACC extraction and measurement were performed using the method of Lizada & Yang [26] as described previously [5,12,24].…”

Section: Peroxidase Activity and Isoperoxidasesmentioning

confidence: 99%

See 1 more Smart Citation

Carry-over of thigmomorphogenetic characteristics in calli derived fromBryonia dioica internodes

Bourgeade

Boyer

Jaegher

et al. 1989

Plant Cell Tiss Organ Cult

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“…Ethylene is itself supposed to play a role in xylem differentiation through a role in lignification [19]. In addition to the above proposed effects of ethylene (of the second rise), the possibility must be considered that the wound ethylene [1,3,11] of the first early rise may be initiating the sequence of reactions or the appropriate metabolism leading to rhizogenesis. Ethylene might be responsible for the accumulation of phenolic compounds at the base of the cuttings [13,15,16] through its effect on several enzymes of phenolic metabolism [6,10,18].…”

Section: Discussionmentioning

confidence: 99%

Early changes in auxin and ethylene production in vine cuttings before adventitious rooting

Moncousin¹,

Favre²,

Gaspar

1989

Plant Cell Tiss Organ Cult

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Node cuttings of 'in vitro' cultured grapevine were rooted in absence of any growth regulator, before the onset of the axillary bud. There were two peaks of ethylene production at 2 and 10-12h, well marked in the top and bottom portions of the cuttings for the former. The level of IAA increased in the basal portions of the cuttings only, from the 4th hour, and culminated at the 24th hour. The wound ethylene of the first rise might be initiating the sequence of reactions leading to root formation. The second ethylene rise might result from the beginning of the increase of the IAA level.

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“…Mechanical stimuli in plants induce an increase in auxin up to production of ethylene (ERNER;JAFFE, 1982) probably through the mediation of an elicitor (TAKAHASHI;JAFFE, 1984) of the 1-aminocyclopropane-l-carboxylic acid (ACC) pathway (JAEGHER et al, 1987). The effects of ethylene have been observed in practically all aspects of plant growth and development, ranging from seed germination to senescence of various organs and in many responses to environmental stress (ABELES et al, 1992;REID, 1995) as well as to changes in xylem increment and wood properties (ROBNETT;MOREY, 1974).…”

Section: Introductionmentioning

confidence: 99%

Effect of ethephon on hardening of Pachystroma longifolium seedlings

Dranski

Malavasi²,

Malavasì

et al. 2013

Rev. Árvore

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-Immediately after planting, tree seedlings face adverse environmental and biotic stresses that must be overcome to ensure survival and to yield a desirable growth. Hardening practices in the nursery may help improve seedling stress resistance through reduction of aboveground plant tissues and increased root volume and biomass. We conducted an assay to quantify changes in the morphogenesis following application of ethephon on seedlings of Pachystroma longifolium (Ness) I. M. Johnst.during hardening. The results showed no effect of the ethephon treatments on the number of leaves but a reduction of up to 50% in seedling height increment, and an increase in stem diameter increment of up to 44% with the 600 mg L -1 ethephon treatment, which consequently altered seedling Dickson Quality Index. Our results indicate that ethephon may help to promote desired morphological changes that occur during seedling hardening in nurseries.Keywords: Seedling morphogenesis; Growth regulators; Ethylene. EFEITO DO ETEFON NA RUSTIFICAÇÃO DE MUDAS DE Pachystroma longifolium RESUMO -Imediatamente após o plantio, mudas florestais devem superar os diversos estresses bióticos e ambientais para garantir sobrevivência e exibir crescimento desejável. Práticas rustificativas no viveiro podem ajudar a melhorar a resistência aos estresses

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Thigmomorphogenesis in Bryonia dioica: Early Events in Ethylene Biosynthesis Pathway

Cited by 28 publications

References 26 publications

Carry-over of thigmomorphogenetic characteristics in calli derived fromBryonia dioica internodes

Carry-over of thigmomorphogenetic characteristics in calli derived fromBryonia dioica internodes

Early changes in auxin and ethylene production in vine cuttings before adventitious rooting

Effect of ethephon on hardening of Pachystroma longifolium seedlings

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