Abstract
Flixweed is one of the most abundant weeds in North America and China, and causes a reduction in crop yields. Dormancy of flixweed seeds is deep at maturity and is maintained in soil for several months. To identify regulators of seed dormancy and germination of flixweed, the effect of environmental and hormonal signals were examined using dormant and non-dormant seeds. The level of dormancy was decreased during after-ripening and stratification, but long imbibition (over 5 days) at 4 °C in the dark resulted in the introduction of secondary dormancy. The strict requirement of duration of cold treatment for the break of dormancy may play a role in the seasonal regulation of germination. The germination of non-dormant flixweed seeds was critically regulated by red (R) and far-red (FR) light in a photoreversible manner. Sodium nitroprusside, a donor of nitric oxide (NO), promoted germination of half-dormant seeds, suggesting that NO reduced the level of seed dormancy. As has been shown in other related species, light elevated sensitivity to GA4 in dark-imbibied flixweed seeds, but cold treatment did not affect GA4-sensitivity unlike in Arabidopsis. Taken together, our results indicate that seed germination in flixweed and its close relative Arabidopsis is controlled by similar as well as distinct mechanisms in response to various endogenous and environmental signals.
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References
I. Batak M. Devic Z. Giba D. Grubisic K. Poff R. Konjevic (2002) ArticleTitleThe effects of potassium nitrate and NO-donors on phytochrome A- and phytochrome B-specific induced germination of Arabidopsis thaliana seeds Seed Sci. Res. 12 IssueID4 253–259 Occurrence Handle10.1079/SSR2002118
M.V. Beligni L. Lamattina (2000) ArticleTitleNitric oxide stimulates seed germination and de-etiolation, and inhibits hypocotyl elongation, three light-inducible responses in plants Planta 210 IssueID2 215–221 Occurrence Handle10664127
K.F. Best (1977) ArticleTitleThe biology of Canadian weeds. 22. Descurainia sophia (L.) Webb Can. J. Plant Sci. 57 499–507
P.C. Bethke F. Gubler J.V. Jacobsen R.L. Jones (2004) ArticleTitleDormancy of Arabidopsis seeds and barley grains can be broken by nitric oxide Planta 219 847–855 Occurrence Handle10.1007/s00425-004-1282-x Occurrence Handle15133666
J.D. Bewley (1997) ArticleTitleSeed germination and dormancy Plant Cell 9 1055–1066 Occurrence Handle10.1105/tpc.9.7.1055 Occurrence Handle12237375
R.E. Blackshaw (1990) ArticleTitleControl of stinkweed (Thlaspi arvense) and flixweed (Descurainia sophia) in winter wheat (Triticum aestivum) Can. J. Plant Sci. 70 IssueID3 817–824
R.A. Bungard D. Mcneil J.D. Morton (1997) ArticleTitleEffects of chilling, light and nitrogen-containing compounds on germination, rate of germination and seed imbibition of Clematis vitalba L Ann. Bot. 79 643–650 Occurrence Handle10.1006/anbo.1996.0391
J.S. Conn (1990) ArticleTitleSeed viability and dormancy of 17 weed species after burial for 4.7 years in Alsaka Weed Sci. 38 134–138
J.S. Conn R.E. Deck (1995) ArticleTitleSeed viability and dormancy of 17 weed species after 9.7 years of burial in Alaska Weed Sci. 43 IssueID4 583–585
Crozier A., Kamiya Y., Bishop G. and Yokota T. 2000. Biosynthesis of hormones and elicitor molecules. In: Buchana B.B., Gruissem W. and Jones R.L. (eds), Biochemistry and Molecular Biology of Plants. American Society of Plant Physiologists, pp. 850–865.
M.P.M. Derkx C.M. Karssen (1993a) ArticleTitleChanging sensitivity to light and nitrate but not to gibberellins regulates seasonal dormancy patterns in Sisymbrium officinale seeds Plant Cell Environ. 16 IssueID5 469–479
M.P.M. Derkx C.M. Karssen (1993b) ArticleTitleEffects of light and temperature on seed dormancy and gibberellin-stimulated germination in Arabidopsis thaliana: studies with gibberellin-deficient and -insensitive mutants Physiol. Plant. 89 IssueID2 360–368 Occurrence Handle10.1034/j.1399-3054.1993.890218.x
Z. Giba D. Grubisic S. Todorovic L. Sajc D. Stojakovic T. Konjevic (1998) ArticleTitleEffect of nitric oxide-releasing compounds on phytochrome-controlled germination of Empress tree seeds Plant Growth Regul. 26 175–181 Occurrence Handle10.1023/A:1006131215297
H.W.M. Hilhorst (1998) ArticleTitleThe regulation of secondary dormancy: the membrane hypothesis revisited Seed Sci. Res. 8 77–90
H.W.M. Hilhorst A.I. Smitt C.M. Karssen (1986) ArticleTitleGibberellin-biosynthesis and -sensitivity mediated stimulation of seed germination of Sisymbrium officinale by red light and nitrate Physiol. Plant. 67 IssueID2 285–290
J.V. Jacobsen D.W. Pearce A.T. Poole R.P. Pharis L.N. Mander (2002) ArticleTitleAbscisic acidphaseic acid and gibberellin contents associated with dormancy and germination in barley Physiol. Plant. 115 IssueID3 428–441 Occurrence Handle10.1034/j.1399-3054.2002.1150313.x Occurrence Handle12081536
C.M. Karssen (1980/1981) ArticleTitleEnvironmental conditions and endogenous mechanisms involved in secondary dormancy of seeds Israel J. Bot. 29 45–64
C.M. Karssen (1982) Seasonal patterns of dormancy in weed seeds A.A. Khan (Eds) The Physiology and Biochemistry of Seed DevelopmentDormancy and Germination Elsevier Biomedical Press AmsterdamThe Netherlands 243–270
D.L. Ketring (1977) Ethylene and seed germination A.A. Khan (Eds) Physiol. Biochem. Seed Dormancy Germination Elsevier Biomedical Press AmsterdamThe Netherlands 157–178
M. Koornneef L. Bentsink H. Hilhorst (2002) ArticleTitleSeed dormancy and germination Curr. Opin. Plant Biol. 5 IssueID1 33–36 Occurrence Handle10.1016/S1369-5266(01)00219-9 Occurrence Handle11788305
M. Koornneef J.H. van der Veen (1980) ArticleTitleInduction and analysis of gibberellin sensitive mutants in Arabidopsis thaliana (L.) Heynh Theor. Appl. Genet. 58 257–263 Occurrence Handle10.1007/BF00265176
M. Kopyra E.A. Gwód (2003) ArticleTitleNitric oxide stimulates seed germination and counteracts the inhibitory effect of heavy metals and salinity on root growth of Lupinus luteus Plant Physiol. Biochem. 41 IssueID11–12 1011–1017 Occurrence Handle10.1016/j.plaphy.2003.09.003
P. Luo Z.Q. Lan H.B. Gao D.P. Ye (1999) ArticleTitleDescurainia sophiaa neglected cruciferous plant resource Cruciferae Newslett. 21 15–16
P. Luo Y. Yang F. Gao Z.Q. Lan (1997) ArticleTitlePreliminary study on the introduction of Descurainia sophiaan oil plant species for industrial uses Acta Bot. Sin. 39 IssueID5 477–479
E. Nambara T. Akazawa P. McCourt (1991) ArticleTitleEffects of the gibberellin biosynthesis inhibitor uniconazol on mutants of Arabidopsis Plant Physiol. 97 736–738
T. Saito Y. Kamiya H. Yamane N. Murofushi A. Sakurai N. Takahashi (1998) ArticleTitleEffects of fluorogibberellins on plant growth and gibberellin 3β-hydroxylases Plant Cell Physiol. 39 574–580
W. Schutz P. Milberg B.B. Lamont (2002) ArticleTitleSeed dormancy, after-ripening and light requirements of four annual Asterace in South-western Australia Ann. Bot. 90 704–717 Occurrence Handle10.1093/aob/mcf250
T. Shinomura (1997) ArticleTitlePhytochrome regulation of seed germination J. Plant Res. 110 151–161
C.M. Steber P. McCourt (2001) ArticleTitleA role for brassinosteroids in germination in Arabidopsis Plant Physiol. 125 763–769 Occurrence Handle10.1104/pp.125.2.763 Occurrence Handle11161033
R. Tkachuk V.J. Mellish (1977) ArticleTitleAmino acid and proximate analyses of weed seeds Can. J. Plant Sci. 57 IssueID1 243–249
T. Toyomasu H. Yamane N. Murofushi Y. Inoue (1994) ArticleTitleEffects of exogenously applied gibberellin and red light on the endogenous levels of abscisic acid in photoblastic lettuce seeds Plant Cell Physiol. 35 127–129
T. Toyomasu H. Kawaide W. Mitsuhashi Y. Ivoue Y. Kamiya (1998) ArticleTitlePhytochrome regulates gibberellins biosynthesis during germination of photoblastic lettuce seeds Plant Physiol. 118 1517–1523 Occurrence Handle10.1104/pp.118.4.1517 Occurrence Handle9847128
T. Toyomasu H. Tsuji H. Yamane M. Nakayama I. Yamaguchi N. Murofushi N. Takahashi Y. Inoue (1993) ArticleTitleLight effects on endogenous levels of gibberellins in photoblastic lettuce seeds J. Plant Growth Regul. 12 85–90 Occurrence Handle10.1007/BF00193238
P.W. Unger S.D. Miller O.R. Jones (1999) ArticleTitleWeed seeds in long-term dryland tillage and cropping system plots Weed Res. 39 IssueID3 213–223 Occurrence Handle10.1046/j.1365-3180.1999.00139.x
S. Yamaguchi Y. Kamiya (2002) ArticleTitleGibberellins and light-stimulated seed germination J. Plant Growth Regul. 20 369–376 Occurrence Handle10.1007/s003440010035
Y. Yamauchi M. Ogawa A. Kuwahara A. Hanada Y. Kamiya S. Yamaguchi (2004) ArticleTitleActivation of gibberellin biosynthesis and response pathways by low temperature during imbibition of Arabidopsis thaliana seeds Plant Cell 16 367–378 Occurrence Handle10.1105/tpc.018143 Occurrence Handle14729916
Z.P. Zhang (2003) ArticleTitleDevelopment of chemical weed control and integrated weed management in China Weed Biol. Manage. 3 IssueID4 197–203 Occurrence Handle10.1046/j.1444-6162.2003.00105.x
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Li, W., Liu, X., Khan, M. et al. Hormonal and environmental regulation of seed germination in flixweed (Descurainia sophia). Plant Growth Regul 45, 199–207 (2005). https://doi.org/10.1007/s10725-005-4116-3
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DOI: https://doi.org/10.1007/s10725-005-4116-3