Aberrant Ovules in Angiosperms: A Review of Selected Examples and New Observations on Ornithogalum caudatum (Liliaceae)
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cDNA Isolation and Functional Characterization of UDP-d-glucuronic Acid 4-Epimerase Family from Ornithogalum caudatum.
d-Galacturonic acid (GalA) is an important component of GalA-containing polysaccharides in Ornithogalum caudatum. The incorporation of GalA into these polysaccharides from UDP-d-galacturonic acid (UDP-GalA) was reasonably known. However, the cDNAs involved in the biosynthesis of UDP-GalA were still unknown. In the present investigation, one candidate UDP-d-glucuronic acid 4-epimerase (UGlcAE) f...
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Ornithogalum cuspidatum is an Iranian species of the genus Ornithogalum L. (family: Liliaceae). The species of Ornithogalum are used widely in Iranian traditional medicine for treatment of inflammatory and respiratory disease. The purpose of the present study is to evaluate antioxidant and antimicrobial activities of n-hexane, ethyl acetate, methanol and aqueous extracts of O. cuspidatum leaves...
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Angiosperm ovules consist of three proximal-distal domains – the nucellus, chalaza and funiculus – demarcated by developmental fate and specific gene expression. Mutation in three paralogous class III homeodomain leucine zipper (HD-ZIPIII) genes leads to aberrations in ovule integument development. Expression of WUSCHEL (WUS) is normally confined to the nucellar domain, but in this triple mutan...
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Angiosperms distinguish themselves from gymnosperms by their ovules that are enclosed before pollination. However, how the ovules get enclosed in angiosperms remains a mystery, especially for Magnoliaceae. The only key to this mystery is finding a series of carpels transitional from fully closed with enclosed ovules to open with naked ovules. We use routine paraffin section technology, LM, SEM ...
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