IDEAS home Printed from https://ideas.repec.org/a/ibn/jasjnl/v10y2018i8p174.html
   My bibliography  Save this article

Root-to-Shoot Communication to Modulate Source-Sink Relationship in Tomato Depends on Phytochromes

Author

Listed:
  • Valéria Cury Galati
  • Reginaldo de Oliveira
  • Lucas Aparecido Gaion
  • Vanessa Cury Galati
  • Rogério Falleiros Carvalho

Abstract

Phytochromes have been reported as strategic photoreceptors that can modulate the partition of photoassimilates between source and sink. However, so far, it is unknown whether phytochrome accumulation in the root is part of the control mechanisms of the source-sink relationship that modulates root and shoot growth. Thus, the objective of this work was to investigate phytochrome involvement in the source-sink relationship and in the vegetative and reproductive development of tomato plants (Solanum lycopersicum L. cv. Micro-Tom or MT). The experimental design was completely randomized with four treatments, provided by grafting combinations between aurea (au), which is phytochrome deficient, and the near isogenic line MT- (MT/MT, au/au, MT/au and au/MT). We observed differentiated responses for many parameters analyzed. For example, the root dry mass accumulation and stern diameter obtained by MT/MT, MT/au and au/MT grafting were 33% and 31% higher, respectively, than those obtained by au/au. In the au/MT combination, there were greater root dry mass and total dry mass accumulations. Based on the changes in vegetative and reproductive development observed from grafting combinations between MT and the mutant au, we can conclude that phytochromes function in the control of photoassimilate partitioning between roots and stems during tomato growth.

Suggested Citation

  • Valéria Cury Galati & Reginaldo de Oliveira & Lucas Aparecido Gaion & Vanessa Cury Galati & Rogério Falleiros Carvalho, 2018. "Root-to-Shoot Communication to Modulate Source-Sink Relationship in Tomato Depends on Phytochromes," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 10(8), pages 174-174, July.
  • Handle: RePEc:ibn:jasjnl:v:10:y:2018:i:8:p:174
    as

    Download full text from publisher

    File URL: https://ccsenet.org/journal/index.php/jas/article/download/75074/42277
    Download Restriction: no

    File URL: https://ccsenet.org/journal/index.php/jas/article/view/75074
    Download Restriction: no
    ---><---

    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

    Statistics

    Access and download statistics

    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:ibn:jasjnl:v:10:y:2018:i:8:p:174. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Canadian Center of Science and Education (email available below). General contact details of provider: https://edirc.repec.org/data/cepflch.html .

    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.