IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v14y2024i7p1039-d1425247.html
   My bibliography  Save this article

Physiological, Biochemical, and Ultrastructural Changes in Naturally Aged Sweet Corn Seeds

Author

Listed:
  • Gaohong Yue

    (Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China)

  • Ruichun Yang

    (Guangdong Provincial Key Laboratory of Plant Molecular Breeding, College of Agriculture, South China Agricultural University, Guangzhou 510642, China)

  • Dan Lei

    (Guangdong Provincial Key Laboratory of Plant Molecular Breeding, College of Agriculture, South China Agricultural University, Guangzhou 510642, China)

  • Yanchao Du

    (Sweet and Waxy corn Research Lab, Sorghum Research Institute, Shanxi Agricultural University, Jinzhong 030600, China)

  • Yuliang Li

    (Crop Institute of Guangdong Provincial Agricultural Academic, Guangzhou 510640, China)

  • Faqiang Feng

    (Guangdong Provincial Key Laboratory of Plant Molecular Breeding, College of Agriculture, South China Agricultural University, Guangzhou 510642, China)

Abstract

Due to low starch content and poor seed vigor, sweet corn seeds exhibit poor storage stability. Therefore, understanding the physiological and biochemical changes in seeds after natural aging is crucial for assessing seed status and extending the storage period. This study aims to investigate the physiological, biochemical, and ultrastructural changes in aged seeds of different genotypes. An eight-month natural aging experiment was conducted on 10 sweet corn inbred lines. The results showed an obvious decrease in germination potential, germination ratio, germination index, and vigor index after natural aging, and two inbred lines with stronger tolerance to natural aging were identified from the 10 inbred lines studied. In aged seeds, levels of gibberellin, abscisic acid, total protein, total starch, as well as activities of antioxidant enzymes, lipoxygenase, and amylase, and malondialdehyde (MDA) content, exhibited significant differences among inbred lines. Correlation analysis revealed a positive correlation among four seed vigor indices and a highly negative correlation between seed vigor indices and MDA content. Germination ratio, germination index, and vigor index displayed a highly negative correlation with lipoxygenase activity. Furthermore, starch granule decomposition was observed in the endosperm of low-vigor inbred lines, contrary to amylase activity. Thus, this study indicates variations in seed vigor, biochemical indicators, and the ultrastructure of aged sweet corn seeds among different genotypes. Both lower lipoxygenase activity and reduced MDA accumulation contribute to seed resistance to aging.

Suggested Citation

  • Gaohong Yue & Ruichun Yang & Dan Lei & Yanchao Du & Yuliang Li & Faqiang Feng, 2024. "Physiological, Biochemical, and Ultrastructural Changes in Naturally Aged Sweet Corn Seeds," Agriculture, MDPI, vol. 14(7), pages 1-15, June.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:7:p:1039-:d:1425247
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/14/7/1039/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/14/7/1039/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Dariusz J. Michalczyk & Magdalena Krupka & Jan Kamiński & Marta Wierzbicka & Sonia Floryańska & Wiktor Kopeć & Agnieszka I. Piotrowicz-Cieślak, 2023. "Physiological and Biochemical Parameters of Field Bean ( Vicia faba var. minor) Seeds Stored for 33 Years," Agriculture, MDPI, vol. 13(10), pages 1-12, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:14:y:2024:i:7:p:1039-:d:1425247. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.