NDLI: Desiccation tolerance and cryopreservation of seeds of black poplar (Populus nigra L.), a disappearing tree species in Europe

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Desiccation tolerance and cryopreservation of seeds of black poplar (Populus nigra L.), a disappearing tree species in Europe

Content Provider	Springer Nature Link
Author	Michalak, Marcin Plitta, Beata P. Tylkowski, Tadeusz Chmielarz, Paweł Suszka, Jan
Copyright Year	2014
Abstract	Black poplar (Populus nigra L.) is a widely distributed species that plays a crucial role in riparian forest ecosystems. Due to a reduction in its natural habitats and hybridization with introduced poplar species clones, its genetic pool is decreasing and efforts are required to preserve this species. Seeds of black poplar are short-lived and quickly lose viability during conventional storage in gene banks. Therefore, in order to preserve ex situ the genetic diversity of this species, the feasibility of seed cryopreservation in liquid nitrogen (at −196 °C, LN) for periods of 24 h and 2 years was investigated. Seeds were harvested from three individual trees (two provenances) and desiccated to different levels of water content (WC) in the range of 0.02–0.35 g g−1 (g H2O/g dry mass, g g−1) prior to immersion in LN. Seed germination was assessed after each treatment. P. nigra seeds tolerated desiccation to WC 0.07 g g−1 but after severe desiccation to WC <0.05 g g−1 exhibited a significant reduction in germination. Results indicated that all black poplar seeds, regardless of origin, year of harvesting and seed quality, could be cryopreserved for 24 h when their WC was in the range of 0.11–0.17 g g−1. Physiology of P. nigra seeds showed in this paper is consistent with attributes of intermediate seed storage behavior. This study provides a foundation for using cryopreservation for the ex situ conservation of P. nigra seeds.
Starting Page	53
Ending Page	60
Page Count	8
File Format	PDF
ISSN	16124669
Journal	Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch
Volume Number	134
Issue Number	1
e-ISSN	16124677
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Black poplar Cryopreservation Rare species Seed desiccation Seed water content Seed storage Forestry Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science Forestry

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Desiccation tolerance and cryopreservation of seeds of black poplar (Populus nigra L.), a disappearing tree species in Europe

Optimal seed water content and storage temperature for preservation of Populus nigra L. germplasm

Optimal seed water content and storage temperature for preservation of Populus nigra L. germplasm

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Wild populations as a source of germplasm for black poplar (Populus nigra L.) breeding programmes

Desiccation tolerance and cryopreservation of seeds of black poplar (Populus nigra L.), a disappearing tree species in Europe

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Desiccation tolerance and cryopreservation of seeds of black poplar (Populus nigra L.), a disappearing tree species in Europe

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