Czech J. Genet. Plant Breed., 2005, 41(1):1-10 | DOI: 10.17221/3675-CJGPB

Two Mutants Affecting Adaptative Responses to Abiotic Stresses in Barley Seedlings

A E. Martínez1, 2, A Landau1, 3, P T. García1, G Polenta1, M C. Arias1, R Murray1, N Pensel1, A R. Prina1
1 Instituto Nacional de Tecnología Agropecuaria (INTA), Argentina
2 Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
3 Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT), Argentina

Two novel mutants which affect the adaptative responses of barley seedlings to different abiotic stresses are described. They allow us to explore some aspects of adaptative phenomena that are little known in higher plants. One of these mutants corresponds to a nuclear gene which under certain circumstances in the wild type barley induces additional ethylene production in the seedling roots. This mechanism seems to be involved in inducing a negative hydrotropic growth of the roots, a phenomenon that we interpret as a response avoiding waterlogging. The other mutant corresponds to a plastid encoded gene which is involved in photosystem I and II stability and, probably, indirectly affects the acclimation of the seedlings to higher temperatures, a fact which seems to occur through the control of unsaturation/saturation levels of the thylakoid membrane fatty acids.

Keywords: abiotic stress; barley; root behaviour; temperature sensitivity

Published: March 31, 2005  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Martínez AE, Landau A, García PT, Polenta G, Arias MC, Murray R, et al.. Two Mutants Affecting Adaptative Responses to Abiotic Stresses in Barley Seedlings. Czech J. Genet. Plant Breed. 2005;41(1):1-10. doi: 10.17221/3675-CJGPB.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. A M., Y I., A S., T E., P M.A., P R. (2001): Unusual tolerance to high temperatures in a new herbicide-resistant D1 mutant from Glycine max (L.) Merr. cell cultures deficient in fa y acid desaturation. Planta, 212: 573-582. Go to original source... Go to PubMed...
    2. C E.L., G B.R. (1980): Fractionation of thylakoid membranes with the nonionic detergent octyl-β-glucopyranoside. Resolution of chlorophyll-protein complex II into two chlorophyll-protein complexes. Plant Physiology, 66: 428-432. Go to original source... Go to PubMed...
    3. D M.., J M.B., G S.C., C R. (1981): Inhibition by silver ions of gas space (aerenchyma) formation in adventitious roots of Zea mays L. subjected to exogenous ethylene or to oxygen deficiency. Planta, 153: 217-234. Go to original source... Go to PubMed...
    4. H R., Y W.C., P S., E A-M., V K A. (1997): Ethylene provides positional information on cortical cell division but is not involved in Nod factor-induced root hair tip growth in Rhizobium legume. Development, 124: 1781-1787. Go to original source... Go to PubMed...
    5. I K. (2002): Acclimative response to temperature stress in higher plants: Approaches of gene engineering for temperature tolerance. Annual Review of Plant Biology, 53: 225-45. Go to original source... Go to PubMed...
    6. M L S., Z S. (1963): Plastid structure, chlorophyll concentration and free amino-acid composition of a chlorophyll mutant of barley. Canadian Journal of Botany, 41: 1053-1062. Go to original source...
    7. M A.E., F P.M., A A., P G., M R., P A.R. (2004): A nuclear gene controlling seminal root growth response to hydroponic cultivation in barley. Environmental and Experimental Botany, 51: 133-144. Go to original source...
    8. M Y., T M., K Y., K H., I K. (2000): Trienoic fatty acids and plant tolerance of high temperature. Science, 287: 476-479. Go to original source... Go to PubMed...
    9. M R.R., K C.F. (1967): A new technique for culturing and measuring barley seedlings. Crop Science, 7: 275-277. Go to original source...
    10. P R.W. (1978): Effect of growth temperature on the fa y acid composition of the leaf lipids in Atriplex lentiformis (Torr.) Wats. Plant Physiology, 61: 484-486. Go to original source... Go to PubMed...
    11. P A.R. (1996): Mutator induced cytoplasmic mutants in barley. Genetic evidence of activation of a putative chloroplast transposon. Journal of Heredity, 87: 385-389. Go to original source...
    12. P A.R., S H., M L., R R., D D., R C., A A., D M.., C N., A M.C. (2000): The barley chloroplast genome as a source of genetic variability for herbicide and abiotic stress tolerance. In: L S. (ed.): Barley Genetics VIII (Proceedings of 8th International Barley Genetics Symposium). Adelaide University, South Australia: 282-283.
    13. P A.R., A M.C., L V., L A. (2003): A cytoplasmically inherited mutant controlling early chloroplast development in barley seedlings. Theoretical and Applied Genetics, 107: 1410-1418. Go to original source... Go to PubMed...
    14. R J.K., R J.K.M., B J.A. (1982): Correlations between the thermal stability of chloroplast (thylakoid) membranes and the composition and fluidity of their polar lipids upon acclimation of the higher plant, Nerium oleander, to growth temperature. Biochimica et Biophysica Acta, 688: 218-228. Go to original source...
    15. T Y., N Y., M N. (2000): Acclimation of the photosynthetic machinery to high temperature in Chlamydomonas rinhardtii requires synthesis de novo of proteins encoded by the nuclear and chloroplast genomes. Plant Physiology, 124: 441-449. Go to original source... Go to PubMed...
    16. T M., R K., D L. (1995): Ethylene is a positive regulator of root hair development in Arabidopsis thaliana. The Plant Journal, 8: 943-948. Go to original source... Go to PubMed...
    17. V R., B A. (1995): Two nuclear mutations disrupt distinct pathways for targeting proteins to the chloroplast thylakoid. The EMBO Journal, 14: 3905-3914. Go to original source... Go to PubMed...

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content