Anatomia cantitativă a epidermei laminei frunzei la viţa de vie (Vitis L.) [Articol]
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Universitatea de Stat din Moldova
Abstract
Pentru a evidenţia caracterele adaptive ale rezistenţei la secetă a viţei de vie, sunt calculate valorile biometrice a 11 caractere anatomice ale epidermei laminei frunzei la 15 specii ale genului Vitis L. şi la 15 soiuri de viţă de vie locale ale speciei Vitis vinifera L. Tipul morfologic actinocit al aparatelor (complexelor) stomatice este caracteristic pentru epiderma abaxială a laminei frunzei la viţa de vie (Vitis L.). Speciile genului Vitis L. – Vitis californica, V. sylvestris – şi soiurile viţei de vie locale – Coarna neagră, Copciac, Plavae – s-au dovedit a fi mai adaptate la condiţiile concrete de viaţă, deoarece ele nu şi-au schimbat semnificativ densitatea stomatelor în anul 2008, an ce a urmat după anul secetos 2007. Mai adaptabile la noile condiţii de viaţă sunt speciile V. monticola, V. rupestris, V.solonis şi soiurile de viţă de vie locale Feteasca neagră şi Rara neagră, la care densitatea stomatelor s-au schimbat destul de mult în anul 2008. Este elaborată metoda de determinare a ariei medii a stomatelor şi a celulelor bazale ale epidermei abaxiale a laminei frunzei la viţa de vie (Vitis L.).
In order to revial adaptable characters of drought resistance of grapevine, are calculated the biometric values of 11 anatomic characters of leaf blade epidermis at 15 species of genus Vitis L. and 15 local cultivars of species Vitis vinifera L. The stomatal density per 1 mm2 of foliar area is specific and sortspecific and varies from 101,14 stomata/mm2, at local sort Rara neagră to 225,50 stomata/mm2, at Vitis silvestris. The stomatal complex of leaf blade abaxial epidermis of studied species and cultivars of grapevine is of actinocytic type and it is characteristic for the genus Vitis L. The species of genus Vitis L. – V. californica, V. sylvestris – and local cultivars – Coarna neagră, Copciac and Plavae – are more adaptable to concrete life conditions, because the they density of stomata do not considerable change in year 2008, next after drought 2007 year. Mare adaptable to new life conditions are species V. monticola, V. rupestris, V. solonis and cultivars Feteasca neagră and Rara neagră, at which the stomatal density is more changed in year 2008. It is elaborated the method for determination the average area of stomata and basal cells of abaxial epidermal cells of leaf blade of grapevine (Vitis L.).
In order to revial adaptable characters of drought resistance of grapevine, are calculated the biometric values of 11 anatomic characters of leaf blade epidermis at 15 species of genus Vitis L. and 15 local cultivars of species Vitis vinifera L. The stomatal density per 1 mm2 of foliar area is specific and sortspecific and varies from 101,14 stomata/mm2, at local sort Rara neagră to 225,50 stomata/mm2, at Vitis silvestris. The stomatal complex of leaf blade abaxial epidermis of studied species and cultivars of grapevine is of actinocytic type and it is characteristic for the genus Vitis L. The species of genus Vitis L. – V. californica, V. sylvestris – and local cultivars – Coarna neagră, Copciac and Plavae – are more adaptable to concrete life conditions, because the they density of stomata do not considerable change in year 2008, next after drought 2007 year. Mare adaptable to new life conditions are species V. monticola, V. rupestris, V. solonis and cultivars Feteasca neagră and Rara neagră, at which the stomatal density is more changed in year 2008. It is elaborated the method for determination the average area of stomata and basal cells of abaxial epidermal cells of leaf blade of grapevine (Vitis L.).
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CODREANU, Valentin. Anatomia cantitativă a epidermei laminei frunzei la viţa de vie (Vitis L.). Studia Universitatis Moldaviae. Seria Științe Reale și ale Naturii. 2016, nr. 1(91), pp.108 -121. ISSN 1814-3237. E-ISSN 1857-498X.