Loading content, please wait..
loading..
Logo
Version 3.24
or
Publication Type J
Authors Gairola, S; Shabana, HA; Mahmoud, T; El-Keblawy, A; Santo, A
Author Full Name Gairola, Sanjay; Shabana, Hatem A.; Mahmoud, Tamer; El-Keblawy, Ali; Santo, Andrea
Title Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation
Source PLANT DIVERSITY
Language English
Document Type Article
Author Keywords Ex situ conservation; Halophytes; Seed bank collection; Seed germination; Salt tolerance; SSBH
Keywords Plus GERMINATION RESPONSES; POLYMORPHIC SEEDS; MATERNAL SALINITY; STRESS TOLERANCE; SALT TOLERANCE; LIGHT; TEMPERATURE; GROWTH; CHENOPODIACEAE; STRATEGIES
Abstract Ex situ conservation in seed banks is a potential complementary conservation strategy for native plant species. It is well established that ex situ seed banking of native wild plants prolongs seed viability and thereby preserves genetic and species diversity for future use. We evaluated ex situ storage potential of eight halophytic species from deserts in the United Arab Emirates (UAE) by studying seed germination. Specifically, we examined the germinability of freshly collected seeds and seeds stored for three years in a seed bank. We also examined the effect of light conditions on fresh and stored seed germination. Fresh seeds of seven of the eight species tested had a higher germination rates under 12/12 h light/dark fluctuations than did those exposed to total darkness. Storage reduced light sensitivity in Halocnemum strobilaceum, Suaeda aegyptiaca, Salsola drummondii and Salsola imbricata, but increased the requirement for light in Arthrocnemum macrostachyum. In Anabasis setifera, storage decreased germination percentage when there was a 12-hour light/dark fluctuation, but increased germination rate when exposed to the dark treatment. Storage significantly reduced germination in both the light/dark and dark treatments in Suaeda vermiculata and S. aegyptiaca. Germination speed also responded differently to storage; whereas Timson's index significantly increased in A. macrostachyum and H. strobilaceum, it significantly decreased for S. drummondii, S. aegyptiaca and S. vermiculata. Germination of these species at a range of temperatures requires further testing; additionally, we strongly suggest that these laboratory findings be complemented by field studies. Copyright (C) 2019 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V.
Author Address [Gairola, Sanjay; Shabana, Hatem A.; Mahmoud, Tamer] Sharjah Res Acad, Sharjah Seed Bank & Herbarium, POB 60999, Sharjah, U Arab Emirates; [El-Keblawy, Ali] Univ Sharjah, Coll Sci, Dept Appl Biol, POB 27272, Sharjah, U Arab Emirates
Reprint Address Gairola, S (reprint author), Sharjah Res Acad, Sharjah Seed Bank & Herbarium, POB 60999, Sharjah, U Arab Emirates.
E-mail Address sgairola@sra.ae
ORCID Number El-Keblawy, Ali/0000-0003-4448-6236
Publisher KEAI PUBLISHING LTD
Publisher City BEIJING
Publisher Address 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, DONGHENG DISTRICT 100717, PEOPLES R CHINA
ISSN 2096-2703
29-Character Source Abbreviation PLANT DIVERSITY
ISO Source Abbreviation Plant Diversity
Publication Date AUG
Year Published 2019
Volume 41
Issue 4
Beginning Page 229
Ending Page 236
Digital Object Identifier (DOI) 10.1016/j.pld.2019.07.002
Page Count 8
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number IW2KB
Unique Article Identifier WOS:000484805800003
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed