degeneration

Lemma

degeneration

Etichetta di dominio

EN

Etichetta grammaticale

n.

Definizione

The process of declining from a higher to a lower level of effective power or vitality or essential quality. 1

Nota

Fanleaf degeneration affects vinifera cultivars. It is characterized by fan-shaped leaves with toothed margins, proliferation of shoots, short internodes and zigzag growth. […]. Roots from infected vines can be a source of infection even after the mother plant has been removed. 2

Fanleaf degeneration/decline disease is caused by several different virus species […]. Viruses causing fanleaf degeneration/decline are nepoviruses (acronym for ne = nematode borne; po = polyhedral particle). Grapevine fanleaf virus (GFLV) is the most wellcharacterized nepovirus, and is by far the most widespread and important cause of the disease worldwide. 3

Contesto

Grapevine Fanleaf Virus Degeneration is the oldest known disease of Vitis Vinifera. 4

Trascrizione fonetica

[dɪˌdʒen.əˈreɪ.ʃən] 5

Sinonimi e Antonimi
ND
Abbreviazioni
ND
Etimologia

c.1600, from Fr. dégéneration (15c.) or directly from L.L. degenerationem (nom. degeneratio), noun of action from pp. stem of L. degenerare. 6

Etichetta di paese
ND
Ente

Università degli Studi di Genova - Facoltà di Lingue e letterature straniere - Corso di laurea Teorie e tecniche della mediazione interlinguistica

Data della scheda
Thu Feb 10 00:00:00 2005
Autore

Valeria Aliperta rev. Gerbaudo

Fonti

1 : «http://www.glossary.com/dictionary.php?q=degeneration», (03/11/2011)

2 : «http://grapes.msu.edu/fanleaf.htm», (03/11/2011)

3 : «http://www.nysipm.cornell.edu/factsheets/grapes/diseases/fanleaf.pdf», (03/11/2011)

4 : «http://plpnemweb.ucdavis.edu/nemaplex/Plntpara/pltvirus.htm», (03/11/2011)

5 : «http://dictionary.cambridge.org/dictionary/british/degeneration?q=degeneration», (03/11/2011)

6 : «http://www.etymonline.com/index.php?term=degeneration&allowed_in_frame=0», (03/11/2011)

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