Erratum to: Daily Changes in the Competence for Photo- and Gravitropic Response by Potato Plantlets (vol 33, pg 539, 2014)
2015
Autori:
Vinterhalter, DraganVinterhalter, Branka
Miljuš-Đukić, Jovanka D.
Jovanović, Z.
Orbović, V.
Tip dokumenta:
Ostalo (Objavljena verzija)
,
© Springer Science+Business Media New York 2015
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Competence for phototropic (PT) and gravitropic (GT) bending by potato
plantlets grown in vitro manifests regular daily changes indicating
possible involvement of circadian regulation. Unilateral stimulation
with the blue light of plantlets at dawn resulted in moderate PT
response regarding both attained curvature and long lag phase. The PT
response was the strongest between 8:00 and 12:00 h. Throughout the
afternoon and in the evening, bending rate and maximal PT curvature
declined significantly until 23:00 h. The GT response was fastest and
strongest for plantlets stimulated early in the morning and late in the
evening. During the rest of the day, GT competence did not change much
apart from a minimum at 15:00. In conditions comprising either prolonged
day or prolonged night, plantlets appeared to maintain rhythmicity of
competence for PT and GT at least in a short-term. Introduction of dark
period prior to the tropic stimulation at 11:00 h when both PT and GT
responses were strong resulted in the opposite effect: PT was depressed
and GT was enhanced. There was a time threshold of 60 min for the
duration of dark period so the plants can sense interruption in the
daylight. Levels of relative expression of a PHOT2 gene indicate
rhythmic daily changes. PHOT2 gene was present at high levels during
morning hours and late in the evening. As the mid-day and the afternoon
hours approached, PHOT2 expression decreased and reached daily minimum
at 17:00 h. We believe that our data offer strong support for the
conclusion that there is an involvement of circadian rhythms in control
of both PT and GT.
Napomena:
This is erratum to: J Plant Growth Regul (2014) 33:539–550 https://doi.org/10.1007/s00344-013-9403-z
Ključne reči:
Potato; Phototropism; Gravitropism; Circadian rhythmIzvor:
Journal of Plant Growth Regulation, 2015, 34, 2, 440-450Finansiranje / projekti:
- Biotehnologija in vitro - gajene, lekovite i ugrožene biljne vrste (RS-MESTD-Basic Research (BR or ON)-173015)
- Molekularni mehanizmi odgovora biljaka na abiotički stres-uloga transkripcionih faktora i malih RNK i analiza genetičkog diverziteta biljnih kultura od interesa za poljoprivredu i biotehnologiju (RS-MESTD-Basic Research (BR or ON)-173005)
DOI: 10.1007/s00344-015-9507-8
ISSN: 1435-8107