Effects of the Inhibitors of Biosynthesis and Degradation of Catecholamines on Photoperiodic Induction of Flowering in Pharbitis nil

Ueno, Eiko; Shinozaki, Masateru

doi:10.1016/s0176-1617(99)80113-8

Cited by 2 publications

(4 citation statements)

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“…Inhibitors of catecholamine biosynthesis can inhibit floral induction in Pharbits nil as well. Furthermore, the floral induction can be recovered when norepinephrine are exogenously fed with inhibitors of catecholamine biosynthesis [ 64 ]. Fourth, l -epinephrine, l -isoproterenol, l -norepinephrine, and their reaction products with (12 Z , 15 Z )-9-hydroxy-10-oxo-octadeca-12,15-dienoic acid (KODA) can substantially promote flowering in Lemna paucicostata [ 65 , 66 ] by inducing floral primordial and improving flower development [ 67 ].…”

Section: Discussionmentioning

confidence: 99%

Metabolomics Analysis of Litchi Leaves during Floral Induction Reveals Metabolic Improvement by Stem Girdling

Xiao

Chen

et al. 2021

Molecules

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Prolonged exposure to cold temperatures often results in a relatively low flowering rate in litchi (Litchi chinensis Sonn.) trees with younger leaves. This study aimed to verify the impact of stem girdling on litchi flowering by identifying and characterizing the induced metabolic changes. After a 60 day exposure to cold treatment at 15 °C/10 °C (12 h/12 h), the flowering rate of the girdled trees was 100%, while that of the non-girdled trees was 20%, indicating that girdling improved litchi flowering at its turning stage. The metabolic profiles of litchi leaves with and without stem girdling during floral induction were compared and 505 metabolites potentially associated with litchi flowering were detected. Most metabolites were involved in the metabolism of starch and sucrose, fatty acid, and phenylpyruvic acid. The metabolic pathways concerned with the biosynthesis of epinephrine, sucrose, and d-maltose were induced in leaves after girdling treatment. The level of galactitol, phenylpyruvic acid, acetyl-CoA, linoleic acid, alpha-linolenic acid, and 13-HPOT biosynthesis remained stable in the leaves from girdled trees but changed drastically in the leaves from non-girdled trees. In addition, 379 metabolites concerning flowering rate were characterized. Metabolism pathways of starch and sucrose, galactose, and linoleic acid are of great significance to the flowering of litchi. Linoleic acid exhibited the most significant variations between girdled trees and non-girdled trees with fold changes of up to 13.62. These results contribute to understanding the biological mechanism of litchi floral induction and the metabolic changes after stem girdling.

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Section: Discussionmentioning

confidence: 99%

Metabolomics Analysis of Litchi Leaves during Floral Induction Reveals Metabolic Improvement by Stem Girdling

Xiao

Chen

et al. 2021

Molecules

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“…There are other compounds such as melatonin, prostaglandins, catecholamines 43 and salicylic acid 44 involved in flowering. 29,30,32,33 It can be concluded from the abovementioned that there are many diverse chemical compounds that affect flowering.…”

Section: Discussionmentioning

confidence: 99%

“…43 Die remstowwe was jodotirosien, metieldopa, metieltirosien en 6-hidroksidopamien. Hulle het almal blomvorming gerem wanneer dit voor of tydens 'n donkerperiode toegedien is, maar nie na die donkerbehandeling nie.…”

Section: Die Invloed Van Katesjolamiene Op Fotoperiodiese Induksie Vaunclassified

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The florigen mystery

Groenewald

Westhuizen

2006

Suid-Afrikaanse Tydskr Natuurwetenskap Tegnol

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UITTREKSEL INLEIDINGBlomvorming is waarskynlik 'n komplekse biochemies-fisiologiese proses wat nog nie goed verstaan word nie, waarin 'n aantal verskillende rolspelers 'n aandeel het en waarvan die stimulus nog nie met sekerheid geïdentifiseer is nie. Fotoperiodiese plante kan in twee hoofgroepe ingedeel word, naamlik kortdagplante (KDP) en langdagplante (LDP). KDP sal blom as die daglengte korter is as 'n sekere kritieke lengte wat verskillend is vir verskillende plantsoorte, terwyl LDP sal blom as die daglengte langer is as 'n sekere kritieke lengte en dit is ook verskillend vir verskillende plantsoorte. (Alhoewel konvensionele terminologie verwys na daglengte, is dit die kritieke donkerperiode wat eintlik belangrik is.) Dekades gelede is waargeneem dat 'n blomvormende faktor in die blare van fotoperiodies sensitiewe plante gevorm word wat na die groeipunt vervoer word om blomvorming te bewerkstellig. [1][2][3] In 1937 het die Russiese plantfisioloog, Chailakhyan, 4 die naam "florigeen" aan die vervoerbare hipotetiese stof gegee. Verder is dit waargeneem dat daar in die blare van plante wat onder 'n ongunstige fotoperiode verkeer 'n remstof gevorm word wat blomvorming inhibeer. Tot op datum kon die geaardheid van die blomvormende stimulus, na baie pogings, nie met sekerheid bepaal word nie en dit het die Heilige Graal van plantfisiologie geword. Tans word daar baie navorsing gedoen deur 'n aantal navorsers wat op verskillende aspekte van die probleem werk. 5,6,7,8 DIE SOEKTOG NA DIE BLOMVORMENDE FAKTOR(E)Baie verskillende tegnieke is in die soektog na die ontwykende florigeen aangewend. 'n Groot verskeidenheid uiteenlopende stowwe het blomvorming beïnvloed, gerem of gestimuleer. Van die ouer literatuur in hierdie verband kom voor in oorsigartikels van Zeevaart (1976) 9 asook Groenewald en Van der Westhuizen (2003). 3 Daar is drie sleutelteorieë oor die florigeenhipotese. Lang 1,2 het die "florigeenantiflorigeen" teorie gepostuleer, wat hoofsaaklik gebaseer is op entingseksperimente. Dit is bevind dat blomvorming bewerkstellig kan word deur blare wat aan induserende fotoperiodes blootgestel is, op plante wat nie geïnduseer is nie, te ent. Lang et al.2 het in hierdie verband 'n interessante eksperiment uitgevoer waarin 'n vervoerbare blomvormende stimulus, en ook 'n

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Effects of the Inhibitors of Biosynthesis and Degradation of Catecholamines on Photoperiodic Induction of Flowering in Pharbitis nil

Cited by 2 publications

References 16 publications

Metabolomics Analysis of Litchi Leaves during Floral Induction Reveals Metabolic Improvement by Stem Girdling

Metabolomics Analysis of Litchi Leaves during Floral Induction Reveals Metabolic Improvement by Stem Girdling

The florigen mystery

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