scholarly journals Polyamine profiles and biosynthesis in somatic embryo development and comparison of germinating somatic and zygotic embryos of Norway spruce

2009 ◽  
Vol 29 (10) ◽  
pp. 1287-1298 ◽  
Author(s):  
L. Gemperlova ◽  
L. Fischerova ◽  
M. Cvikrova ◽  
J. Mala ◽  
Z. Vondrakova ◽  
...  
Keyword(s):  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Zygotic Embryos ◽  
Somatic Embryo Development

scholarly journals Endogenous Nod-Factor-Like Signal Molecules Promote Early Somatic Embryo Development in Norway Spruce

2002 ◽  
Vol 128 (2) ◽  
pp. 523-533 ◽  
Author(s):  
Julia V. Dyachok ◽  
Malgorzata Wiweger ◽  
Lennart Kenne ◽  
Sara von Arnold
Keyword(s):  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Signal Molecules ◽  
Nod Factor ◽  
Somatic Embryo Development

Regulation of Somatic Embryo Development in Norway Spruce

2020 ◽  
pp. 241-255
Author(s):  
Sara von Arnold ◽  
Tianqing Zhu ◽  
Emma Larsson ◽  
Daniel Uddenberg ◽  
David Clapham
Keyword(s):  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Somatic Embryo Development

Improved Norway spruce somatic embryo development through the use of abscisic acid combined with activated carbon

2005 ◽  
Vol 24 (5) ◽  
pp. 271-279 ◽  
Author(s):  
G. S. Pullman ◽  
P. K. Gupta ◽  
R. Timmis ◽  
C. Carpenter ◽  
M. Kreitinger ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Activated Carbon ◽  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Somatic Embryo Development

Initiation of embryogenic cultures and somatic embryo development in loblolly pine (Pinustaeda)

1990 ◽  
Vol 20 (6) ◽  
pp. 810-817 ◽  
Author(s):  
M. R. Becwar ◽  
R. Nagmani ◽  
S. R. Wann
Keyword(s):  
Somatic Embryo ◽  
Embryo Development ◽  
Loblolly Pine ◽  
Somatic Embryos ◽  
Zygotic Embryo ◽  
Basal Medium ◽  
Embryogenic Tissue ◽  
Zygotic Embryos ◽  
Embryogenic Cultures ◽  
Somatic Embryo Development

Immature zygotic embryo explants (isolated or with intact megagametophytes) from 10 loblolly pine (Pinustaeda L.) clones (7-34, 7-56, 11-9, 11-16, 11-25, 10-1003, 10-1007, 10-1011, 10-1018, and 10-1019) were surveyed for their potential to form embryogenic tissue from the suspensor region of zygotic embryos. After over 14 000 explants were cultured, embryogenic cultures were initiated from explants of 8 of the 10 clones; only explants from clones 11-25 and 10-1019 were not responsive. Embryogenic tissue was initiated from zygotic embryos with intact megagametophytes on MSG basal medium with no exogenous plant growth regulators or with 2–5 mg/L 2,4-dichlorophenoxy acetic acid (2,4-D) and 0–1 mg/L N6-benzyladenine (BA). The highest initiation frequency (5%) was obtained from isolated zygotic embryos of clone 7-34 less than 0.5 mm in length just prior to cotyledon primordia development on DCR basal medium with 3 mg/L 2,4-D and 0.5 mg/L BA. Two types of embryogenic cultures were maintained on medium with 2,4-D and BA: (i) those that contained pre-embryonal masses of cells interspersed with unaggregated suspensorlike cells, but which rarely contained well-formed somatic embryos, and (ii) those that frequently contained well-formed somatic embryos. Somatic embryo development from both types of cultures progressed to a precotyledonary stage on medium with 2.6 mg/L abscisic acid.

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