A Forward Genetic Approach In Arabidopsis Thaliana Identifies Novel Crucial Genes And Mechanisms For Seed Longevity | 17049
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
Recommended Conferences

6th International Conference on Vaccines and Immunology

Geneva, Switzerland

3rd European Congress on Virology

Geneva, Switzerland
Google Scholar citation report
Citations : 1600

Journal of Biotechnology & Biomaterials received 1600 citations as per Google Scholar report

Indexed In
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Open J Gate
  • Genamics JournalSeek
  • Academic Keys
  • ResearchBible
  • China National Knowledge Infrastructure (CNKI)
  • Access to Global Online Research in Agriculture (AGORA)
  • Electronic Journals Library
  • RefSeek
  • Hamdard University
  • OCLC- WorldCat
  • SWB online catalog
  • Virtual Library of Biology (vifabio)
  • Publons
  • Geneva Foundation for Medical Education and Research
  • Euro Pub
Share This Page

A forward genetic approach in Arabidopsis thaliana identifies novel crucial genes and mechanisms for seed longevity

5th World Congress on Biotechnology

Eduardo Bueso, Ramón Serrano, Jesús Muñoz-Bertomeu, Liliam Martínez, Enric Sayas, Patricia Ballester1, Lynne Yenush, Carla Ibañez, Gaetano Bissoli, Miguel Gonzalez-Guzmán, Pedro L Rodriguez, Krzysztof Rakowski, Veronique Brunaud and Francisco Campos

ScientificTracks Abstracts: J Biotechnol Biomater

DOI: 10.4172/2155-952X.S1.027

Seed longevity is important to preserve crop and wild plants but it is limited by progressive cellular damage during storage. Seeds are supposed to be protected against aging by cellular defenses and by structures such as the seed coat. However, blind genetic screens to identify the crucial genes for seed longevity have never been made. We have screened an activation- tagging mutant collection of Arabidopsis thaliana and selected four dominant mutants with improved seed longevity (isl1 to 4-1D) under both natural and accelerated aging conditions. In the isl1-1D mutant the longevity is caused by over-expression of the transcription factor ARABIDOPSIS THALIANA HOMEOBOX 25 (ATHB25; At5g65410), that increases the expression of gibberellic acid 3-oxidase 2 (GA3OX2), encoding a gibberellins (GA) biosynthetic enzyme, and the levels of GA1 and GA4 are higher (3.2- and 1.4-fold, respectively) in the mutant than in wild type. Seeds from wild type plants treated with GA and from a quintuple DELLA mutant (with constitutive GA signaling) are more tolerant to aging, providing additional evidence for a role of GA in seed longevity. In the isl2-1D mutant the longevity is caused by over-expression of the RING-finger of seed longevity (RSL1; At2g26130) and morphological alterations suggest increased GA responses despite unaltered GA levels. In both mutants reciprocal crosses demonstrated a maternal effect and, together with the altered morphology of the seed coat, this suggests that our novel determinants of seed longevity reinforce the seed coat and probably reduce oxygen permeability.
Eduardo Bueso is Agricultural Engineer and Researcher at the Institute of Plant Molecular and Cellular Biology of the Polytechnic University of Valencia, Spain. He works on the molecular mechanisms of seed longevity and has recently published two crucial articles on a novel approach to improve this crucial parameter in agriculture and bioconservation.