Comparison of the radiosensitivity of xanthi Dulieu tobacco variety (Nicotiana tabacum L.) with the one from which it derives
Creators
- 1. Ecole nationale superieure agronomique de Toulouse - Ensat, Laboratoire de cytologie et pathologie vegetale, 145, avenue de Muret, 31076 Toulouse Cedex (France)
- 2. Universite Paul-Sabatier, Laboratoire de botanique et de biogeographie, 39, allee Jules Guesde, 31000 Toulouse Cedex (France)
- 3. Ecole nationale superieure agronomique de Toulouse, Laboratoire d'informatique appliquee, 145, avenue de Muret, 31076 Toulouse Cedex (France)
Description
Seeds of two varieties of Nicotiana tabacum (Var. xanthi and xanthi Dulieu were exposed to increasing doses of γ radiations (100, 500, 800, 1 000, 1 500 Gy). The irradiation effects were observed for several parameters relating to germination and plantlet morphology. The seeds of these two varieties showed (i) a high radioresistance, (ii) except for the number of seedlings able to grow until the two-cotyledon stage which is significantly lower for var. xanthi, there was a very slight difference between the two varieties; however, it seems that var. xanthi Dulieu was a little more resistant, (iii) the dose-effect relationship was similar in both varieties, whatever the biological criterion chosen: stimulation at the lowest dose (100 Gy); inhibition of germination and development at the highest doses (1 000-1 500 Gy). (author)
Abstract (French)
Des graines de deux varietes de Nicotiana tabacum (var. xanthi et xanthi Dulieu) ont ete irradiees (rayonnement γ) a des doses croissantes (100, 500, 800, 1 000 et 1 500 Gy) et les effets des irradiations ont ete observes pour differents parametres relatifs a la germination et a la morphologie des plantules. Les graines des deux varietes montrent (i) une grande radioresistance, (ii) sauf exception (pourcentage de plantules ayant forme deux cotyledons significativement plus faibles chez la variete xanthi), la difference de sensibilite entre les deux varietes est peu importante; toutefois, il semble que la variete xanthi Dulieu soit legerement plus radioresistante, (iii) une reponse dose-effet du meme type quels que soient la variete et le critere biologique retenus: une stimulation a faible dose du gradient choisi; une inhibition de la germination et du developpement aux plus fortes doses (1 000-1 500 Gy). (auteurs)Additional details
Additional titles
- Original title (French)
- Comparaison de la radiosensibilite de la variete xanthi Dulieu du tabac (Nicotiana tabacum L.) a celle de la variete dont elle derive
Identifiers
Publishing Information
- Journal Title
- Radioprotection
- Journal Volume
- 23
- Journal Issue
- no.1
- Journal Page Range
- p. 27-43
- ISSN
- 0033-8451
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 52051692
- Subject category
- S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DOSE-RESPONSE RELATIONSHIPS; GAMMA RADIATION; GERMINATION; INHIBITION; MORPHOGENESIS; MORTALITY; NICOTIANA; PLANT GROWTH; RADIOSENSITIVITY; ROOTS; SEEDS; STATISTICAL DATA
- Descriptors DEC
- DATA; ELECTROMAGNETIC RADIATION; GROWTH; INFORMATION; IONIZING RADIATIONS; MAGNOLIOPHYTA; MAGNOLIOPSIDA; NUMERICAL DATA; PLANTS; RADIATIONS; SENSITIVITY
Optional Information
- Notes
- 26 refs.; available online at: https://www.radioprotection.org/articles/radiopro/pdf/1988/01/radiopro19882301p27.pdf