The current stage of knowledge concerning regulation of floral abscission zone differentiation and functioning in Lupinus luteus

Emilia Wilmowicz

*@umk.pl
Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Agata Kućko


Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Katarzyna Marciniak


Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Aleksandra Gadzikowska


Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Krzysztof Przedniczek


Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Jan Kopcewicz


Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu (Poland)

Abstract

The activity of abscission zone (AZ) determines the separation of organs from plant body. In L. luteus floral AZ develops at the base of the pedicel. Changes observed at the cellular level are correlated with fluctuations in BLADE-ON-PETIOLE (LlBOP) expression. The mRNA content of this gene is regulated by phytohormonal stimulators of flower separation — ethylene (ET) and abscisic acid (ABA) — suggesting that LlBOP is involved not only in the AZ differentiation, but also further stages of its functioning. Abscisic acid causing an accumulation of transcripts of genes, encoding ethylene biosynthesis enzymes (synthase and oxidase of 1-aminocyclopropano-1carboxylic acid, ACC), and at the same time increasing the level of ethylene precursor, indirectly regulates the time of flower separation in L. luteus.


Keywords:

abscisic acid, abscission zone, ethylene, lupin, organ abscission, phytohormones

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Published
2017-09-05

Cited by

Wilmowicz, E. (2017) “The current stage of knowledge concerning regulation of floral abscission zone differentiation and functioning in Lupinus luteus ”, Bulletin of Plant Breeding and Acclimatization Institute, (281), pp. 85–90. doi: 10.37317/biul-2017-0009.

Authors

Emilia Wilmowicz 
*@umk.pl
Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

Authors

Agata Kućko 

Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

Authors

Katarzyna Marciniak 

Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

Authors

Aleksandra Gadzikowska 

Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

Authors

Krzysztof Przedniczek 

Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

Authors

Jan Kopcewicz 

Katedra Fizjologii Roślin i Biotechnologii, Uniwersytet Mikołaja Kopernika w Toruniu Poland

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