NDLI: Effect of Gamma Irradiation on Embryogenic Avocado Cultures and Somatic Embryo Development

Content Provider	Springer Nature Link
Author	Litz, Richard E.
Copyright Year	2004
Abstract	Embryogenic avocado cultures were exposed to ionizing irradiation in order to determine its effect on proliferation and subsequent somatic embryo development. The approximate PD$_{50}$ as determined by linear regression is 35 Gy 2 weeks after irradiation for ‘Fuerte’ 2.11.1 and 4 weeks after irradiation for ‘T362’ 2.11.1. Irradiation of embryogenic cultures did not significantly affect the number of early stage ‘Fuerte’ 2.11.1 somatic embryos that developed directly from irradiated cultures; however, 10–50 Gy inhibited somatic embryo development. Irradiation of ‘T362’ 2.11.1 embryogenic cultures at 25–50 Gy inhibited the number of intermediate and mature stages of somatic embryos that developed directly from irradiated cultures, and 50 Gy inhibited somatic embryo maturation. Inhibition of somatic embryo development could be partially offset by proliferation of irradiated embryogenic cultures as suspensions. Irradiation up to 10 Gy significantly increased the number of mature ‘Fuerte’ 2.11.1 somatic embryos that developed from suspension cultures. Irradiation with doses up to 25 Gy stimulated development of heart stage ‘T362’ 2.11.1 somatic embryos; however, mature somatic embryo development was suppressed at dosages of 10 Gy and greater.
Starting Page	139
Ending Page	147
Page Count	9
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	77
Issue Number	2
e-ISSN	15735044
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Sciences Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Horticulture

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