Author: آمنه غلامی 
Isatis gaubae Bornm.
Masoumeh Izadpanah, Amene Gholami and Shahram kiadaliri
Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran.
Uploaded at July 2024
Scientific editor: Parvin Salehi Shanjani
Seed Storage
The storage behavior of this species is orthodox (desiccation-tolerant seeds), dry to 15 to 20% eRH, and store at -20°C.
Germination requirements
The seeds of this species are not dormant. Sterilize seeds before placing them on wet germination paper. Place seeds for two weeks at 4 ºC to germinate uniformly. Then germinate under an alternating temperature regime of 15/20 ºC (the higher temperature for 16 hours in light and the lower one for eight hours in dark).
Morphology
Fruit type: Silique
Fruit shape: Prolonged oblong to oblanceolate, flattened, longitudinally ridged at the center of each side, on base narrowed, on apex rounded, widely winged, surface glabrous to pubescent
Fruit size: Length 17 to 27 mm, width 2 mm
Seed shape: Prolonged ovate, radicular furrow distinct, wingless. Surface indistinct reticulate, glabrous, lustrous, orange-brown, hilum part dark
Seed size: Length 2.75 to 3.67 mm, width 1.03 to 1.47 mm in an accession from Noshahr, Mazandaran, with 1000 seeds weight 10.6 g, which was collected and identified in 2019 by Shahram kiadaliri, and is stored in the Natural Resources Gene Bank of Iran with the accession number 47841.
Average 1000 seed weight: 6 to 11 g
Biological features
Life form: Biennial, glabrous or pubescent. Stem erect, height 30 to 80 cm
Inflorescence, flower type, and pollination mechanism: Inflorescence compound corymb, flowers actinomorphic, sepals caesious, with membranous border, petals yellow. Flowers hermaphrodite and cross-pollinating. Pollination is carried out by insects and wind.
Time of flowering: May to June
Time of seed ripening: July
Seed dispersal methods: Wind and seed weight
Geographical distribution: Endemic to Iran. Typus from Iran, Pol-e Zanguleh
Distribution in Iran: North and Center. Mostly in provinces Mazandaran, Semnan and Tehran
Taxonomy
Family: Brassicaceae
Genus: Isatis
Species: I. gaubae
Persian name: Vasme-e pol-e zangulei
References and Links
Assadi, M. Sajedi, S. Fakhr Ranjberi, H. Mirzadeh Vaghefi, S. Moazzeni, H. Khodashenas, M. Khosravi, A. R. Hatami, A. Mehrnia, M. Kaffash, Sh. Heidarnia, N. Sheidai, M. Heidari Rikan, M. Kavousi, K. Sonboli, A. Veiskarami, Gh. And Aminian, F. 2017. Flora of Iran, Brassicaceae, No.143. Research Institute of Forests and Rangelands Press, Tehran, Iran, 954 pp.
Black, M. and Bewley, J.D. 2000. Seed technology and its biological basis. Sheffield Academic Press, 419 pp.
Bojňanský, V. and Fargašová, A. 2007. Atlas of seeds and fruits of central and East-European flora: the Carpathian Mountains region. Springer, Dordrecht, The Netherlands, 1046 pp.
Ghahraman, A. Flore of Iran. Research Institute of Forests and Rangelands with University of Tehran Publication. https://floraofiran.net/index.php.
Mozaffarian, V.A. 1998. Dictionary of Iranian plants names. Farhange Moaser Publisher, Tehran, 671 pp.
Mozaffarian, V.A. 2012. A Pictorial dictionary of botany. Farhange Moaser Publisher, Tehran, 1088 pp.
Sharma, O.P. 2009. Plant taxonomy 2E. Tata McGraw-Hill Education, New Delhi, 563 pp.
