FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000577958> ?p ?o ?g. }

• W2000577958 endingPage "345" @default.
• W2000577958 startingPage "319" @default.
• W2000577958 abstract "Summary Germination of the positively photoblastic seeds of Lactuca sativa can be induced by short flashes of red light in the millisecond range. However, compared to irradiations with several seconds or minutes (pulse irradiation), the induction by one flash (single-flash induction) is less effective: Even after a saturating flash no full response is reached. On the other hand, in the millisecond range (0.4–4 ms) the flash duration is without influence as far as equal fluences are concerned. If the flash energy is split into two equal flashes which are separated by a dark interval of 20s (double-flash induction), the physiological effect is increased, both in the ascending part of the fluence-response curve and in the saturation (double-flash effect). Yet, the efficiency of a pulse irradiation is not reached (Figs. 2, 3). The double-flash effect strongly depends on the dark interval in the range of seconds. After an early increase the effect reaches an optimum and decreases again with prolonging the dark interval. These double-flash kinetics are slowed down by lowering the temperature from 24.5°C to 1°C or by partially dehydrating the seeds from 80% to 15% water content (Figs. 4–6). The kinetics of the R/FR-antagonism are similarly dependent on these factors (Fig. 9–12), but in detail they depend additionally on the wavelength of the second flash (Figs. 13, 14). The following interpretation is proposed (Fig. 16): After short dark intervals an early intermediate (P 1 or a collective of intermediates, furtheron called ΣP 1 ) is found, which partly reverts in a dark reaction to P r . Furthermore, ΣP 1 shows a photoreversible equilibrium with P r , which is shifted to P r by long-wavelength R and by FR. Thus, ΣP 1 shows properties which were reported for lumi-R or meta-R a . In the dark, part of ΣP 1 undergoes a dark reaction to a late intermediate (P 2 or ΣP 2 ), which proceeds in the dark to the final product P fr . ΣP 2 is assumed to have weak absorption only, thus resembling meta-R b . The halflives, obtained for these relaxations, are short enough as to exclude a greater accumulation of phytochrome in intermediate states during pulse-irradiation. For millisecond flashes, in contrast, P fr formation and the dark reaction P r ← ΣP 1 are negligible during the short irradiation time. Instead, phytochrome transiently accumulates in intermediate states and hence the probability of P r absorption decreases. This explains the reduced sensitivity of the seeds to a flash-irradiation. Accordingly, the double-flash effect is due to the partial regeneration of P r from ΣP 1 during the dark interval, which increases the probability of absorption for the second red flash. By a model calculation of the fractions of P r , P fr and (ΣP 1 + ΣP 2 ), Pfr values are obtained which qualitatively correspond with the physiological results (Fig. 15 and appendix)." @default.
• W2000577958 created "2016-06-24" @default.
• W2000577958 creator A5064212287 @default.
• W2000577958 date "1983-03-01" @default.
• W2000577958 modified "2023-09-27" @default.
• W2000577958 title "Primärreaktionen der Phytochromkonversion Pr → Pfrin vivo: Induktion der Samenkeimung von Lactuca sativa L. mit kurzen Lichtblitzen" @default.
• W2000577958 cites W1491119423 @default.
• W2000577958 cites W168821371 @default.
• W2000577958 cites W169620734 @default.
• W2000577958 cites W1956168554 @default.
• W2000577958 cites W1976484045 @default.
• W2000577958 cites W1977133612 @default.
• W2000577958 cites W1981161021 @default.
• W2000577958 cites W1981534681 @default.
• W2000577958 cites W1990092460 @default.
• W2000577958 cites W2001056701 @default.
• W2000577958 cites W2001745799 @default.
• W2000577958 cites W2031563874 @default.
• W2000577958 cites W2032926771 @default.
• W2000577958 cites W2035410658 @default.
• W2000577958 cites W2055950659 @default.
• W2000577958 cites W2059611934 @default.
• W2000577958 cites W2079713085 @default.
• W2000577958 cites W2082034179 @default.
• W2000577958 cites W2085034771 @default.
• W2000577958 cites W2088995206 @default.
• W2000577958 cites W2091979127 @default.
• W2000577958 cites W2092665501 @default.
• W2000577958 cites W2099449763 @default.
• W2000577958 cites W2113218585 @default.
• W2000577958 cites W2155973197 @default.
• W2000577958 cites W2161211588 @default.
• W2000577958 cites W2161848438 @default.
• W2000577958 cites W2272770244 @default.
• W2000577958 cites W2476244295 @default.
• W2000577958 cites W280879003 @default.
• W2000577958 cites W36455059 @default.
• W2000577958 doi "https://doi.org/10.1016/s0044-328x(83)80115-9" @default.
• W2000577958 hasPublicationYear "1983" @default.
• W2000577958 type Work @default.
• W2000577958 sameAs 2000577958 @default.
• W2000577958 citedByCount "13" @default.
• W2000577958 crossrefType "journal-article" @default.
• W2000577958 hasAuthorship W2000577958A5064212287 @default.
• W2000577958 hasConcept C138885662 @default.
• W2000577958 hasConceptScore W2000577958C138885662 @default.
• W2000577958 hasIssue "4" @default.
• W2000577958 hasLocation W20005779581 @default.
• W2000577958 hasOpenAccess W2000577958 @default.
• W2000577958 hasPrimaryLocation W20005779581 @default.
• W2000577958 hasRelatedWork W1030430500 @default.
• W2000577958 hasRelatedWork W1494974852 @default.
• W2000577958 hasRelatedWork W1994846741 @default.
• W2000577958 hasRelatedWork W2227612306 @default.
• W2000577958 hasRelatedWork W2748952813 @default.
• W2000577958 hasRelatedWork W2803307177 @default.
• W2000577958 hasRelatedWork W2899084033 @default.
• W2000577958 hasRelatedWork W2912137438 @default.
• W2000577958 hasRelatedWork W3214635344 @default.
• W2000577958 hasRelatedWork W2346533055 @default.
• W2000577958 hasVolume "109" @default.
• W2000577958 isParatext "false" @default.
• W2000577958 isRetracted "false" @default.
• W2000577958 magId "2000577958" @default.
• W2000577958 workType "article" @default.