Organization of the Morphophysiologic Unit in Anagallis arvensis and Its Relation with the Perpetuation Mechanism and Senescence

Trippi, Victorio S.; Brulfert, J.

doi:10.2307/2441441

Cited by 8 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the quantitative light effects cited above, photoperiod controls many aspects of plant development (Vinee-Prue 1975, Salisbury andRoss 1992), and it would also be expected to control senescence, either indirectly through regulation of reproductive development which often controls senescence (Nooden 1998b), or directly, A few reports (Schwabe 1970, Trippi and Brulfert 1973, Kar 1986, Schwabe and Kulkami 1987 indicate possible photoperiodic control of leaf senescence, and interestingly, all of these show delayed leaf senescence in short days (SDs) or accelerated senescence in long days (LDs). Similarly, tomato plants die when they are subjected to continuous light (Arthur et ai.…”

Section: Introductionmentioning

confidence: 99%

Induction of leaf senescence in Arabidopsis thaliana by long days through a light‐dosage effect

Noodén

Hillsberg

Schneider

1996

Physiologia Plantarum

View full text Add to dashboard Cite

Given the influence of photoperiod on reproductive development and whole‐plant senescence in monocarpic plants, one would suspect that leaf senescence in these plants might be under photoperiodic control. In Arabidopsis thaliana, which is monocarpic and also a nonobligate long‐day (LD) plant, LDs (16 h, 300 μmol m−2 s−1) caused leaves to die earlier than did short days (SDs, 10 h). Since leaf longevity was not paralleled by the reproductive development in the present study, the reproductive structures did not seem to be the primary controls of leaf senescence. The LD effect appeared to depend on the amount of light rather than on day length, for leaves given LDs at reduced light intensity (180 μmol m−2 s−1) lived longer than those in LDs with full light. In addition, the higher light intensity promoted chlorophyll loss and anthocyanin accumulation in LDs. Thus, senescence of these leaves seems to be governed by light dosage rather than photoperiod. Light may play a natural role in promoting the senescence of A. thaliana leaves.

show abstract

Section: Introductionmentioning

confidence: 99%

Induction of leaf senescence in Arabidopsis thaliana by long days through a light‐dosage effect

Noodén

Hillsberg

Schneider

1996

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

Photoperiodic Aging in Anagallis Arvensis Clones: Its Relation to Rna Content, Rooting Capacity, and Flowering

Trippi

Brulfert

1973

American J of Botany

Self Cite

View full text Add to dashboard Cite

We investigated the photoperiodic regulation of aging in Anagallis arvensis L. propagated by cuttings. Short-day (SD) conditions caused the persistence of juvenile forms and vegetative growth, as well as high rooting capacity and a high RNA content, through successive vegetative multiplications. SD + 1 long day (LD) every 15th day induced reproductive growth but allowed the persistence of a high rooting capacity and high RNA content through vegetative multiplications. LD conditions caused the persistence of the reproductive stage, the progressive loss of rooting capacity, and a decrease of RNA content. The longevity of the clones seems to be connected to the photoperiodic effects which induce indeterminate growth (SD) and/or determinate and reproductive growth. The loss of propagation capacity and the decrease of RNA content can be considered as indexes of aging not only in plants but also in clones.

show abstract

Aging of Meristems and Morphogenetic Potentialities

Trippi¹

1990

Plant Aging

View full text Add to dashboard Cite

Organization of the Morphophysiologic Unit in Anagallis arvensis and Its Relation with the Perpetuation Mechanism and Senescence

Cited by 8 publications

References 19 publications

Induction of leaf senescence in Arabidopsis thaliana by long days through a light‐dosage effect

Induction of leaf senescence in Arabidopsis thaliana by long days through a light‐dosage effect

Photoperiodic Aging in Anagallis Arvensis Clones: Its Relation to Rna Content, Rooting Capacity, and Flowering

Aging of Meristems and Morphogenetic Potentialities

Contact Info

Product

Resources

About