Enzyme patterns in energy metabolism during flower induction in spinach leaves

Bonzon, Marc; Agosti, Robert Degli; Wagner, Edgar; Greppin, Hubert

doi:10.1111/j.1365-3040.1985.tb01403.x

Cited by 6 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…NAD-dependent glyceraldehyde-3-phosphate dehydrogenase; Bonzon 1985). For some enzymes this increase seemed to be specific for the flower-induced state, since it persisted even when the plants were transferred back to SD conditions.…”

Section: Discussionmentioning

confidence: 97%

A complex pattern of changes in polysomal mRNA populations is evident in the leaves of Arabidopsis thaliana (L.) Heynh. during photoperiodic induction of flowering

Lechner

Rau

1993

Planta

View full text Add to dashboard Cite

Abstract. Previous studies have indicated that the photoperiodic induction of flowering results in qualitative changes in gene expression in the leaves of the induced plant. However, we obtained different results when leaf tissue was examined at different sampling times after flower induction, thus pointing to the possibility that alterations in gene expression during photoperiodic induction are only transient. We analyzed the composition of mRNA populations in the leaves of the long-day plant Arabidopsis thaliana (L.) Heynh. at various times during photoperiodic induction. Polysomal mRNA populations were assayed during illumination programs consisting of different photoperiodic cycles. Quantitative changes of distinct leaf mRNAs were observed during the time course. The expression levels of most of these mRNAs oscillated in a diurnal or circadian rhythm with respect to the photoperiod. However, no novel mRNA appeared or decreased to undetectable levels during the changes in photoperiod. After the onset of inducing photoperiods, alterations in the phase and amplitude of these oscillations were seen. Various types of oscillation pattern were observed. These changes occurred either very rapidly, within hours after the additional light period began or appeared after the first altered photoperiod was complete. The majority of the changes seen at the beginning of inductive photoperiods were transient and the mRNA levels reverted to the original pattern when the plant was returned to non-inductive photoperiods. In addition, some of these alterations were found to be transient, irrespective of the length of subsequent light periods.

show abstract

Section: Discussionmentioning

confidence: 97%

A complex pattern of changes in polysomal mRNA populations is evident in the leaves of Arabidopsis thaliana (L.) Heynh. during photoperiodic induction of flowering

Lechner

Rau

1993

Planta

View full text Add to dashboard Cite

show abstract

“…Recent results show that photoperiodic flower induction is accompanied with changes in genome expression. Enzyme activities in the leaf of the long-day (LD) plant Spinacia oleracea show a different time course during the photoinductive cycle [3,13] and Kannangara et al [8] have analysed the polypeptides of the leaves of the short-day (SD) plant Xanthium strumarium and found that, at the end of the inductive long dark period, two polypeptides disappeared.…”

Section: Introductionmentioning

confidence: 99%

Changes in mRNA level rhythmicity in the leaves ofSinapis alba during a lengthening of the photoperiod which induces flowering

1991

View full text Add to dashboard Cite

A previous study has shown that mRNAs exhibit complex patterns of diurnal rhythms in their quantity in the leaves of Sinapis alba during an 8 h light/16 h dark short day (SD). In order to determine whether this situation is rapidly modified in plants subjected to an extended light treatment, we have used in vitro translation and two-dimensional polyacrylamide gel electrophoresis, together with a strict gel comparison procedure giving a P = 0.03 certitude level, to analyse the mRNA complement at different times during a 22 h light/2 h dark long day (LD). During this LD, complex changes affected about 10% of the mRNAs. Thirty-four different patterns were observed. Some diurnal rhythms present in SD are not modified by the lengthening of the light period, but most are affected. Moreover, we have shown that some mRNAs presenting a constant quantity under a SD regime show an increase or a decrease during the first hours of the photoperiod lengthening. In Sinapis, this LD also induces flowering. All the changes in mRNA quantity detected thus parallel the photoperiodic induction of flowering in the leaves and are quantitative; no mRNA was shown to appear or to disappear.

show abstract

References

1997

Photoperiodism in Plants

View full text Add to dashboard Cite

Enzyme patterns in energy metabolism during flower induction in spinach leaves

Cited by 6 publications

References 22 publications

A complex pattern of changes in polysomal mRNA populations is evident in the leaves of Arabidopsis thaliana (L.) Heynh. during photoperiodic induction of flowering

A complex pattern of changes in polysomal mRNA populations is evident in the leaves of Arabidopsis thaliana (L.) Heynh. during photoperiodic induction of flowering

Changes in mRNA level rhythmicity in the leaves ofSinapis alba during a lengthening of the photoperiod which induces flowering

References

Contact Info

Product

Resources

About