Involvement of jasmonates in responses of sunflower (Helianthus annuus) seedlings to moderate water stress

被引:18
作者
Andrade, Andrea [1 ,3 ]
Escalante, Maximiliano [1 ]
Vigliocco, Ana [1 ]
del Carmen Tordable, Maria [2 ]
Alemano, Sergio [1 ]
机构
[1] Univ Nacl Rio Cuarto, Fac Ciencias Exactas Fis Quim & Nat, Dept Ciencias Nat, Lab Fisiol Vegetal, RA-5800 Cordoba, Argentina
[2] Univ Nacl Rio Cuarto, Fac Ciencias Exactas Fis Quim & Nat, Dept Ciencias Nat, Lab Morfol Vegetal, RA-5800 Cordoba, Argentina
[3] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina
关键词
Jasmonic acid; 12-Oxo-phytodienoic acid; Morphological characteristics; Salicylhydroxamic acid; Sunflower; Water stress; DROUGHT STRESS; ABSCISIC-ACID; METHYL JASMONATE; PLANT-EXTRACTS; LEVEL CHANGES; GUARD-CELLS; ARABIDOPSIS; GROWTH; ROOTS; LEAF;
D O I
10.1007/s10725-017-0317-9
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Jasmonates (JAs), a type of phytohormone, are involved in sensing and signaling of several environmental stresses (biotic and abiotic). Jasmonic acid (JA) has been suggested to function in plant responses to drought, because this type of stress induces expression of several genes that also respond to JA. We investigated the involvement of JA and its precursor (12-oxo-phytodienoic acid; OPDA) on seedling morphological and physiological characteristics of two sunflower (Helianthus annuus) inbred lines with contrasting responses (sensitive vs. tolerant) to water stress. Our experimental treatments were based on moderate water stress (simulated by application of mannitol 400 mM) and on blocking of JA biosynthesis (by the chemical inhibitor salicylhydroxamic acid; SHAM). Water stress resulted in reduction of primary root (PR) growth and lateral root (LR) growth, but in increased LR number. SHAM treatment increased PR length, LR number, and LR length, thus strongly affecting root architecture. Water stress had differential effects on various physiological parameters, including relative water content (RWC), stomatal conductance, and content of photosynthetic pigments (chlorophylls, carotenoids). OPDA and JA accumulation in aerial part and roots induced by water stress was reversed by combined water stress plus SHAM treatment at day 14. Our findings suggest that SHAM effectively inhibits de novo JA biosynthesis induced by water stress, and that JAs play a protective role in responses of sunflower seedlings to this stress. JAs, particularly OPDA, are highly effective signaling molecules in mediation of sunflower seedling responses to water stress.
引用
收藏
页码:501 / 511
页数:11
相关论文
共 50 条
  • [31] Evaluation of proteome alterations induced by cadmium stress in sunflower (Helianthus annuus L.) cultures
    Lopes Junior, Cicero Alves
    Barbosa, Herbert de Sousa
    Galazzi, Rodrigo Moretto
    Ferreira Koolen, Hector Henrique
    Gozzo, Fabio Cesar
    Zezzi Arruda, Marco Aurelio
    [J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2015, 119 : 170 - 177
  • [32] Genetic analysis of leaf hydraulics in sunflower (Helianthus annuus L.) under drought stress
    Rauf, S.
    Sadaqat, H. A.
    Khan, I. A.
    Ahmed, R.
    [J]. PLANT SOIL AND ENVIRONMENT, 2009, 55 (02) : 62 - 69
  • [33] ADVENTITIOUS ROOTING IN HYPOCOTYLS OF SUNFLOWER (HELIANTHUS-ANNUUS) SEEDLINGS .3. THE ROLE OF ETHYLENE
    LIU, JH
    MUKHERJEE, I
    REID, DM
    [J]. PHYSIOLOGIA PLANTARUM, 1990, 78 (02) : 268 - 276
  • [34] Toxic effects of cadmium (Cd++) on metabolism of sunflower (Helianthus annuus L.) seedlings
    Zengin, F. Kirbag
    Munzuroglu, O.
    [J]. ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, 2006, 56 (03) : 224 - 229
  • [35] Effects of supplement with sanitary landfill leachate in gas exchange of sunflower (Helianthus annuus L.) seedlings under drought stress
    Francisco H. Nunes Junior
    Valdineia S. Freitas
    Rosilene O. Mesquita
    Brennda B. Braga
    Rifandreo M. Barbosa
    Kaio Martins
    Franklin A. Gondim
    [J]. Environmental Science and Pollution Research, 2017, 24 : 24002 - 24010
  • [36] Alleviating Cd Stress in Sunflower (Helianthus annuus) through the Sodium Silicate Application
    Wu, Haoying
    Wang, Xiyuan
    Gao, Haifeng
    Chen, Jiao
    Zhang, Tingting
    [J]. SUSTAINABILITY, 2024, 16 (05)
  • [37] THE BEHAVIOUR OF SOME SUNFLOWER (Helianthus annuus) HYBRIDS FROM ABROAD UNDER WATER AND HEAT STRESS AT ARDS SIMNIC
    Bonea, Dorina
    Urechean, Viorica
    Constantinescu, Emilia
    Iancu, Dragos
    [J]. SCIENTIFIC PAPERS-SERIES A-AGRONOMY, 2012, 55 : 129 - 132
  • [38] Drip irrigation with saline water for oleic sunflower (Helianthus annuus L.)
    Chen, Ming
    Kang, Yaohu
    Wan, Shuqin
    Liu, Shi-ping
    [J]. AGRICULTURAL WATER MANAGEMENT, 2009, 96 (12) : 1766 - 1772
  • [39] WATER STRESS EFFECT ON CONFECTIONERY HYBRID SUNFLOWER (HELIANTHUS ANNUUS L.) CULTIVARS IN DIFFERENT GROWTH PERIODS
    Naneli, Ismail
    Turan, Ferzat
    [J]. FRESENIUS ENVIRONMENTAL BULLETIN, 2021, 30 (05): : 5486 - 5497
  • [40] Response of NAC transcription factor genes against chromium stress in sunflower (Helianthus annuus L.)
    Yuce, Merve
    Taspinar, Mahmut Sinan
    Aydin, Murat
    Agar, Guleray
    [J]. PLANT CELL TISSUE AND ORGAN CULTURE, 2019, 136 (03) : 479 - 487