EGTA inhibits floral induction of Pharbitis nil via its influence on gas exchange properties of stomata

• Autorzy: Glowacka K , Tretyn A. , Gorecki R.J. , Lee S.H.
• Języki publikacji: EN

Abstrakty

EN

The purpose of the study was to determine inhibitory effect of calcium chelator; ethylene glycol-bis(2-aminoethyl- ether)-N,N,N’,N’-tetraacetic acid (EGTA) on flowering of a short-day (SD) plant Pharbitis nil. It was found that 20 mM solution of EGTA applied on cotyledons of 5-d-old A nil seedlings four hours before the start of 16-h-long induction night decreased the flowering response bye55 % compared to the control plants not treated with this Ca2 chelator. It also caused a very significant decrease of photosynthesis rate, transpiration rate and stomatal conductance both in light and darkness conditions. The results of this study confirm earlier hypothesis suggesting the effect of Ca2+ and its modulators on A nil flowering is due to their influence on the stomata.

Słowa kluczowe

EN

plant physiology; short day plant; ethylene glycol-bis[2-aminoethylether]-N,N,N',N'-tetraacetic acid; flowering; vegetation; growth; Japanese morning glory; gas exchange; stoma; calcium ion; light condition; photoperiodic induction; Pharbitis nil

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2006
• Tom: 28
• Numer: 5
• Opis fizyczny: p.477-481,fig.,ref.

Twórcy

autor

Glowacka K

• University of Warmia and Mazury, Oczapowskiego 1a, 10-719 Olsztyn, Poland

autor

Tretyn A.

autor

Gorecki R.J.

autor

Lee S.H.

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