On class and elitism in archaeology

While archaeology is certainly a politically conscious discipline, with various members involved in political and activist movements, especially focusing on gender and race issues, little has been said, discussed, or done with regards to class and elitism. In fact, it seems that since the advent of postmodernity in the 1970s, class and elitism have become moot topics. The aim of this article is to reflect upon class-based discrimination and elitism in archaeology, first by tracing the changes they have undergone, especially during late capitalist times, and how class has become sublimated to fit the neoliberal agenda; second, the article focuses on several issues concerning class and elitism in the university context in general, and in archaeology in particular, and how these serve as barriers to those less wealthy and fortunate; third, this work highlights how these issues concerning class and elitism in archaeology then affect scientific discourse on one hand, which has become more technologically advanced, and consequently more expensive, and archaeological theory on the other, which in its hectic search for novelty has lost its capacity to truly contribute anything new to our understanding of past and present societies

Eucalyptus camaldulensis: Volatiles from immature flowers and high production of 1,8-cineole and β-pinene by in vitro cultures

Calli of Eucalyptus camaldulensis Dehn were induced, for the first time, from immature flowers and stamens and established in the presence of 2,4-D and BA, under dark and light conditions. Immature flowers, of the same type used for callus induction, were submitted to hydrodistillation while the induced calli were extracted with n-pentane. The constituents of the n-pentane extracts and of the hydrodistillate were identified by GC-MS. The main constituents of the hydrodistillate from immature flowers were 1,8-cineole (34.7%), β-pinene (7.7%), and spathulenol (9.5%). The n-pentane extract from calli developed from stamens consisted only of alkanes, alkenes and alcohols, while that of calli developed from immature flowers consisted mainly of monoterpenes (92.08-96.56%). The main monoterpenes produced in these calli, cultured in darkness and under light conditions, were 1,8-cineole, 62.70 and 69.26% as well as β-pinene, 27.09 and the 25.31%, respectively. © 2001 Elsevier Science Ltd. All rights reserved

Eucalyptus camaldulensis: Volatiles from immature flowers and high production of 1,8-cineole and β-pinene by in vitro cultures

Calli of Eucalyptus camaldulensis Dehn were induced, for the first time, from immature flowers and stamens and established in the presence of 2,4-D and BA, under dark and light conditions. Immature flowers, of the same type used for callus induction, were submitted to hydrodistillation while the induced calli were extracted with n-pentane. The constituents of the n-pentane extracts and of the hydrodistillate were identified by GC-MS. The main constituents of the hydrodistillate from immature flowers were 1,8-cineole (34.7%), β-pinene (7.7%), and spathulenol (9.5%). The n-pentane extract from calli developed from stamens consisted only of alkanes, alkenes and alcohols, while that of calli developed from immature flowers consisted mainly of monoterpenes (92.08-96.56%). The main monoterpenes produced in these calli, cultured in darkness and under light conditions, were 1,8-cineole, 62.70 and 69.26% as well as β-pinene, 27.09 and the 25.31%, respectively. © 2001 Elsevier Science Ltd. All rights reserved

The Eucalyptus terpene synthase gene family

Background: Terpenoids are abundant in the foliage of Eucalyptus, providing the characteristic smell as well as being valuable economically and influencing ecological interactions. Quantitative and qualitative inter- and intra- specific variation of terpenes is common in eucalypts. Results: The genome sequences of Eucalyptus grandis and E. globulus were mined for terpene synthase genes (TPS) and compared to other plant species. We investigated the relative expression of TPS in seven plant tissues and functionally characterized five TPS genes from E. grandis. Compared to other sequenced plant genomes, Eucalyptus grandis has the largest number of putative functional TPS genes of any sequenced plant. We discovered 113 and 106 putative functional TPS genes in E. grandis and E. globulus, respectively. All but one TPS from E. grandis were expressed in at least one of seven plant tissues examined. Genomic clusters of up to 20 genes were identified. Many TPS are expressed in tissues other than leaves which invites a re-evaluation of the function of terpenes in Eucalyptus. Conclusions: Our data indicate that terpenes in Eucalyptus may play a wider role in biotic and abiotic interactions than previously thought. Tissue specific expression is common and the possibility of stress induction needs further investigation. Phylogenetic comparison of the two investigated Eucalyptus species gives insight about recent evolution of different clades within the TPS gene family. While the majority of TPS genes occur in orthologous pairs some clades show evidence of recent gene duplication, as well as loss of function.Botany, Department ofScience, Faculty ofReviewedFacult