Systematics, plant

Dinitroaniline herbicides show minimal plant systematic translocation properties with the majority of the absorbed residues in the root tissues. Metabolites identified include traces of Al-dealkylation, alkyl and aryl hydroxylation and nitro reduction products. Low levels of dinitroaniline herbicide residues have been reported in raw agricultural commodities according to Good Agricultural Practice. 

Judd, W. S Campbell, C. S., Kellog, E. A. and Stevens, P. 1999. Plant Systematics. A Phylogenetic Approach. Sunderland, Massachusetts Sinauer Associates, Inc and Coon, N. 1974. The Dictionary of Useful Plants. The Use, History, and Folklore of More Than 500 Plant Species. Emmaus, Pa. 18049 Rodale Press/Book Division and, Tutin, T. G Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. and Webb, D. A. 1964-1980. Flora Europaea. Volumes 1-5. Cambridge The University Press. 

Taskova R, Peev D, Handjieva N. Iridoid Glucosides of the Genus Veronica s.l. and their Systematic Significance. Plant Systematics and Evolution 2002 231 1-17. 

Whitten, W. M., Williams, N. H., Armbruster, W. S., Battiste, M. A., Strekowski, L. and Lindquist, N. (1986). Carvone oxide an example of convergent evolution in euglossine pollinated plants. Systematic Botany 11 222-228. 

Raguso R. and Pichersky E. (1995). Floral volatiles of Clarkia breweri and C. concinna (Onagraceae) recent evolution of floral aroma and moth pollination. Plant Systematics and Evolution 194, 55-67. 

Kubitzki, K. 1969. "The ecogegraphical differentiation of Amazonian inundation forests." Plant Systematics and Evolution 163 285-304. 

Judd, Walter S., Christopher Campbell, Elizabeth A. Kellogg, Michael J. Donoghue, and Peter Stevens. Plant Systemat-ics A Phylogenetic Approach. 2nd ed. with CD-ROM. Suderland, MD Sinauer, 2002. 

Woodland, D. W. Contemporary Plant Systematics. 3rd ed. Berrien Springs, MI Andrews University Press, 1999. 

The central concept in plant systematica (as in the systematics of other organisms animals, fungi, prokaryotes) is that of relationship, Different kinds of plant taxonomists, engaged in different kinds of research, will subscribe to the statement that searching for relationships is an essential part of their activities. Plant systematics can, therefore, rightly be defined as the science of relationships between plants - or rathert between plant populations. 

Pig. 5. Publications in plant systematics. "Regional" are publication on areas like Europe, tropical Asia. Australia, "bocal" means a coverage of e.g. the Netherlands, Java, i< ifornia. Main groups are Algae, Mosses, Vascular plants, Angiosperms, etc. Small groups are orders, families, genera. Transitions between the types of publication are not sharp. 

Sometimes people aski What is the use of plant systematics The answer is two-sided and the usefulness of plant systematics has two very different aspects - maybe not always strictly distinguished. In the first place there is the usefulness of taxonomic knowledget it is qften recognized that knowing plants and their names is an essential aid in many kinds of human activity (from forest exploitation to nature conservation, from medicinal application to weed control). The call for more taxonomists is, therefore, often heard. 

I am aware that this short text is only a meagre representation of the richnesses of plant systematics. Much has not been mentioned, stress was placed on the two-sideness of systematics, the two kinds of questions one can ask, the two challenges confronting the taxonomists. The differences have been stressed, I- hope that also the fundamental unity has become visible. 

Judd, W., Campbell, C.S., Kellogg, E.A., Stevens, P.F., Donoghue, M.J. Plant Systematics A Phylogenetic Approach. Sinauer Associates, Inc. Sunderland, MA, 2002. 

Radford, A.E. Dickison, W.C. Massey, J.R. Bell, R.C. Vascular Plant Systematics. Harper Row Publishers, New York, 1974,89Ip. 

The families Papaveraceae and Fumariaceae are well known as taxonomic groups, and both are very rich in specific alkaloids. Some of them are important in medicine and some others can be considered as promising in this sense (1,2). Therefore it is not surprising that in the past and especially at present these alkaloids belong to those that have been most intensively studied 3-9). A vast quantity of material has been accumulated, which represents a rich potential source of medicinal compounds of plant origin and a significant taxon in plant systematics. In this connection, attempts are made by both botanists and chemists to find a correlation between chemical properties and botanical features. 

Yunnan Province, China, is world-wide famous for abundant growing of a variety of plants flora of the tropical, subtropical and temperate zones as well as flora which are characteristic of high mountain zone. These have attracted much attention of botanists and phytochemists of the world in view of plant systematics and development of new plant resources as well. 

Shafir, S. Bechar, A. Weber, E.U. (2003). Cognition mediated coevolution context-dependent evaluations and sensitivity of pollinators to variability in nectar rewards. Plant Systematic and Evolution, Vol. 238, No. 1-4, p. 195-209, ISSN 1615-6110... 

Huizing, H.J., T.W.J. Gadella, and E. Kliphuis. 1982. Chemotaxonomical investigations of the Symphytum officinale polyploid complex and S. asperum (Boraginaceae) The pyrro-lizidine alkaloids. Plant Systemat. Evol. 140 (4) 279-292. 

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