Role of the Chromosome 4B in Suppressing Frost Resistance in Winter Wheat (Triticum aestivum L.)

1998 ◽  
Vol 26 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Ottó Veisz ◽  
József Sutka
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Frost Resistance ◽  
Triticum Aestivum L

scholarly journals Considering the method of frost resistance determination for Winter Wheat (Triticum aestivum L.) varieties

2008 ◽  
Vol 0 (2(8)) ◽  
pp. 30-33
Author(s):  
Н. І. Рябчун ◽  
В. П. Петренкова ◽  
С. О. Ткачик ◽  
А. В. Андрющенко
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Frost Resistance ◽  
Triticum Aestivum L

scholarly journals Naturally Occurring Ecdysteroids in Triticum aestivum L. and Evaluation of Fenarimol as a Potential Inhibitor of Their Biosynthesis in Plants

2021 ◽  
Vol 22 (6) ◽  
pp. 2855
Author(s):  
Anna Janeczko ◽  
Jana Oklestkova ◽  
Danuše Tarkowská ◽  
Barbara Drygaś
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Growth Conditions ◽  
Animal Kingdom ◽  
Experimental Conditions ◽  
P450 Monooxygenase ◽  
Naturally Occurring ◽  
Regulatory Effects ◽  
Potential Use

Ecdysteroids (ECs) are steroid hormones originally found in the animal kingdom where they function as insect molting hormones. Interestingly, a relatively high number of these substances can also be formed in plant cells. Moreover, ECs have certain regulatory effects on plant physiology, but their role in plants still requires further study. One of the main aims of the present study was to verify a hypothesis that fenarimol, an inhibitor of the biosynthesis of ECs in the animal kingdom, also affects the content of endogenous ECs in plants using winter wheat Triticum aestivum L. as a model plant. The levels of endogenous ECs in winter wheat, including the estimation of their changes during a course of different temperature treatments, have been determined using a sensitive analytical method based on UHPLC-MS/MS. Under our experimental conditions, four substances of EC character were detected in the tissue of interest in amounts ranging from less than 1 to over 200 pg·g−1 FW: 20-hydroxyecdysone, polypodine B, turkesterone, and isovitexirone. Among them, turkesterone was observed to be the most abundant EC and accumulated mainly in the crowns and leaves of wheat. Importantly, the level of ECs was observed to be dependent on the age of the plants, as well as on growth conditions (especially temperature). Fenarimol, an inhibitor of a cytochrome P450 monooxygenase, was shown to significantly decrease the level of naturally occurring ECs in experimental plants, which may indicate its potential use in studies related to the biosynthesis and physiological function of these substances in plants.

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