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Titolo:
Insertion profiles in stomatal density and sizes in Nicotiana tabacum L. plantlets
Autore:
Volenikova, M; Ticha, I;
Indirizzi:
Charles Univ, Fac Sci, Dept Plant Physiol, CZ-12844 Prague 2, Czech Republic Charles Univ Prague Czech Republic 2 , CZ-12844 Prague 2, Czech Republic
Titolo Testata:
BIOLOGIA PLANTARUM
fascicolo: 2, volume: 44, anno: 2001,
pagine: 161 - 165
SICI:
0006-3134(2001)44:2<161:IPISDA>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
EX-VITRO CONDITIONS; GROWN IN-VITRO; LEAF ANATOMY; TOBACCO PLANTLETS; ACCLIMATIZATION; CULTURE; CONDUCTANCE; FREQUENCY; CHERRY; SHOOTS;
Keywords:
irradiance; photoautotrophic and photomixotrophic growth; plant heterogeneity; stomatal elongation and shape; sucrose;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Ticha, I Charles Univ, Fac Sci, Dept Plant Physiol, Vinicna 5, CZ-12844 Prague 2, Czech Republic Charles Univ Vinicna 5 Prague Czech Republic 2 2, Czech Republic
Citazione:
M. Volenikova e I. Ticha, "Insertion profiles in stomatal density and sizes in Nicotiana tabacum L. plantlets", BIOL PLANT, 44(2), 2001, pp. 161-165

Abstract

Tobacco (Nicotiana tabacum L, cv. Samsun) plantlets were cultured in vitroon Murashige-Skoog medium photoautotrophically (without sucrose) or photomixotrophically (with 3 % sucrose) under two irradiances [70 or 230 mu mol m(-2) s(-1)]. Significant differences in stomatal density and sizes in leaves of different insertion levels (3(rd), 5(th) and 7(th) leaves from bottom)in photomixotrophic plantlets but not in photoautotrophic ones were found after 35 d of culture. Stomatal density was higher in upper leaves and on abaxial leaf side. Higher irradiance enhanced stomatal density in photoautotrophic plantlets. Stomatal sizes decreased with leaf insertion level but nosignificant differences between leaf sides were found. Abaxial stomata were more circular than the adaxial ones. In photomixotrophic plantlets stomata tended to be more elongated in the 3(rd) and the 5(th) leaves, whereas stomatal elongation in photoautotrophic plantlets was similar in all leaves.

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Documento generato il 04/04/20 alle ore 02:25:36