A biosystematic study of Euphorbia subgenus Chamaesyce (Euphorbiaceae) in Iran

Autor:	Mahboubeh Hosseinalizadeh Nobarinezhad, M. Pakravan, Amirhossein Pahlevani
Rok vydání:	2018
Předmět:	food.ingredient biology Euphorbiaceae Plant Science Prolate spheroid Chamaesyce biology.organism_classification medicine.disease_cause Vascular bundle food Pollen Botany medicine Subgenus Euphorbia Eudicots Ecology Evolution Behavior and Systematics
Zdroj:	Phytotaxa. 360:179
ISSN:	1179-3163 1179-3155
Popis:	We studied leaf anatomy, mitotic chromosomes and pollen grains of nine species of Euphorbia ( E. chamaesyce, E. granulata, E. indica, E. humifusa, E. maculata, E. petiolata, E. prostrata, E. serpens and E. nutans ) out of the 15 species of Euphorbia subg. Chamaesyce present in Iran. We compared our results with two species of subg. Esula sections Tythymalus and Helioscopia ( E. peplus and E. helioscopia ) . Our anatomical survey identified the Kranz bundle sheath as a distinct anatomical character for subgenus Chamaesyce sect. Anisophyllum , differentiating this from E. petiolata of subg. Chamaesyce sect. Cheirolepidium . Based on type of abaxial epidermis cell walls, species were classified into three groups including species with zigzagged, sinuous and intermediate (zigzagged-sinuous) walls. Chromosome numbers for four species were reported for the first time from Iran, and 2n=32 is the first report for E. indica . Three shapes of pollen grains were determined: oblate spheroidal, prolate spheroidal and subprolate. A tectate perforate exine ornamentation was detected in almost all of the species.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c1426d78b2ea3f749969fe0aefc4a2c https://doi.org/10.11646/phytotaxa.360.3.1 Zobrazit plný text záznamu