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Differences in the Growth and Physiological Responses of the Leaves of Peucedanum japonicum and Hordeum vulgare Exposed to Salinity

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  • Liyun Liu

    (Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
    Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan)

  • Yuki Nakamura

    (Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan)

  • Nisar Ahmad Taliman

    (Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan)

  • Ayman EL Sabagh

    (Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
    Department of Field Crops, Faculty of Agriculture, Siirt University, 56100 Siirt, Turkey)

  • Reda EA Moghaieb

    (Department of Genetics, Faculty of Agronomy, Cairo University, Giza 12613, Egypt)

  • Hirofumi Saneoka

    (Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
    Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan)

Abstract

Soil salinity has emerged as one of the most prominent threats to modern intensive farming systems, and it has necessitated the cultivation of halophytes to ensure food security and human nutrition. Peucedanum japonicum Thunb. is an edible wild plant with medicinal value that is widely distributed along the Pacific coast of western Japan. However, the adaptive mechanisms of this plant with respect to salt stress tolerance have not yet to be elucidated. The purpose of this study was to compare the physiological responses of P. japonicum to salt stress with those of barley ( Hordeum vulgare ), which is considered a salinity-tolerant plant. Seedlings of both species at the same height were exposed to different concentrations (0, 50, 75, and 150 mM) of NaCl for 16 days, after which the leaves were analyzed with respect to different physiological parameters. The results revealed a maintenance of leaf growth in P. japonicum compared with that in barley, the growth of which was severely impaired at low concentrations of NaCl (50 and 75 mM). In response to salt stress, a higher suppression of Na + and Cl − assimilations was observed in P. japonicum than in barley under all NaCl treatments. Moreover, P. japonicum showed a greater ability to maintain leaf K + and Ca 2+ concentrations, whereas barley exhibited a significant reduction in the concentrations of these ions under saline conditions. Thus, the superior salinity tolerance of P. japonicum could be attributed to a more efficient maintenance of ionic balances. Taken together, our results indicate that P. japonicum may be classified as a halophyte, given its superior regulation of K + , Ca 2+ , SO 4 − , and sucrose concentrations and lower NO 3 − concentrations compared with those of barley.

Suggested Citation

  • Liyun Liu & Yuki Nakamura & Nisar Ahmad Taliman & Ayman EL Sabagh & Reda EA Moghaieb & Hirofumi Saneoka, 2020. "Differences in the Growth and Physiological Responses of the Leaves of Peucedanum japonicum and Hordeum vulgare Exposed to Salinity," Agriculture, MDPI, vol. 10(8), pages 1-13, August.
  • Handle: RePEc:gam:jagris:v:10:y:2020:i:8:p:317-:d:393200
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    References listed on IDEAS

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    1. Agata Blicharz-Kania & Dariusz Andrejko & Franciszek Kluza & Leszek Rydzak & Zbigniew Kobus, 2019. "Assessment of the Potential Use of Young Barley Shoots and Leaves for the Production of Green Juices," Sustainability, MDPI, vol. 11(14), pages 1-11, July.
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    Cited by:

    1. Hussain, M. Iftikhar & Al-Dakheel, Abdullah J. & Chaudhry, Usman Khalid & Khan, Muhammad Imran & ALHaithloul, Haifa Abdulaziz Sakit & Alghanem, Suliman Mohammed & Alaklabi, Abdullah, 2022. "Morpho-physiological response of barley to assess genotypic differences of salinity tolerance under hyper arid climate," Agricultural Water Management, Elsevier, vol. 272(C).
    2. Sadia Shahid & Muhammad Shahbaz & Muhammad Faisal Maqsood & Fozia Farhat & Usman Zulfiqar & Talha Javed & Muhammad Fraz Ali & Majid Alhomrani & Abdulhakeem S. Alamri, 2022. "Proline-Induced Modifications in Morpho-Physiological, Biochemical and Yield Attributes of Pea ( Pisum sativum L.) Cultivars under Salt Stress," Sustainability, MDPI, vol. 14(20), pages 1-19, October.

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