PoplarV1, Main, Exploration, bibRecord, 000F06

Extending Populus seed longevity by controlling seed moisture content and temperature.

Identifieur interne : 000F06 ( Main/Exploration ); précédent : 000F05; suivant : 000F07

Extending Populus seed longevity by controlling seed moisture content and temperature.

Auteurs : Du Hyun Kim [Corée du Sud]

Source :

PloS one [ 1932-6203 ] ; 2018.

RBID : pubmed:30142186

Descripteurs français

KwdFr :
- Azote (MeSH), Conservation biologique (MeSH), Eau (analyse), Eau (métabolisme), Germination (MeSH), Graines (croissance et développement), Graines (métabolisme), Populus (croissance et développement), Populus (métabolisme), Température (MeSH).
MESH :
- analyse : Eau.
- croissance et développement : Graines, Populus.
- métabolisme : Eau, Graines, Populus.
- Azote, Conservation biologique, Germination, Température.

English descriptors

KwdEn :
- Germination (MeSH), Nitrogen (MeSH), Populus (growth & development), Populus (metabolism), Preservation, Biological (MeSH), Seeds (growth & development), Seeds (metabolism), Temperature (MeSH), Water (analysis), Water (metabolism).
MESH :
- chemical , analysis : Water.
- chemical , metabolism : Water.
- chemical : Nitrogen.
- growth & development : Populus, Seeds.
- metabolism : Populus, Seeds.
- Germination, Preservation, Biological, Temperature.

Abstract

The poplar species Populus davidiana and P. koreana are widely grown in plantations and as biofuel resources, but little is known about ex-situ seed conservation in poplar. To identify the optimal long-term seed storage conditions for these species, we evaluated the viability of seeds with different seed water contents (SWCs) at various storage temperatures and time periods. P. davidiana seeds with <6% SWC could be stored at room temperature (RT) for 4 weeks, while P. koreana seeds showed no storability at RT. P. davidiana seeds with 3% SWC showed 74% viability after 36 months of storage at 4°C, while those with 9-18% SWC showed >89% viability after 48 months of storage at -18°C. Long-term storage at -80°C was best for P. davidiana seeds with a wide range of SWCs (3-24%), with 91-98% of normal germination after 48 months of storage. However, the normal germination of P. koreana seeds with 3-24% SWC declined to <20% after 36 months of storage, even at -18°C and -80°C. No significant difference was observed between seeds immersed vs. not immersed in liquid nitrogen for both species. Our findings increase the possibility for long-term seed conservation for both Populus species.

DOI: 10.1371/journal.pone.0203080
PubMed: 30142186
PubMed Central: PMC6108527

Affiliations:

Corée du Sud

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Le document en format XML

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<author><name sortKey="Kim, Du Hyun" sort="Kim, Du Hyun" uniqKey="Kim D" first="Du Hyun" last="Kim">Du Hyun Kim</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Germination (MeSH)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Azote (MeSH)</term>
<term>Conservation biologique (MeSH)</term>
<term>Eau (analyse)</term>
<term>Eau (métabolisme)</term>
<term>Germination (MeSH)</term>
<term>Graines (croissance et développement)</term>
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<term>Populus (croissance et développement)</term>
<term>Populus (métabolisme)</term>
<term>Température (MeSH)</term>
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<term>Populus</term>
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<term>Seeds</term>
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<term>Temperature</term>
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<term>Conservation biologique</term>
<term>Germination</term>
<term>Température</term>
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<front><div type="abstract" xml:lang="en">The poplar species Populus davidiana and P. koreana are widely grown in plantations and as biofuel resources, but little is known about ex-situ seed conservation in poplar. To identify the optimal long-term seed storage conditions for these species, we evaluated the viability of seeds with different seed water contents (SWCs) at various storage temperatures and time periods. P. davidiana seeds with <6% SWC could be stored at room temperature (RT) for 4 weeks, while P. koreana seeds showed no storability at RT. P. davidiana seeds with 3% SWC showed 74% viability after 36 months of storage at 4°C, while those with 9-18% SWC showed >89% viability after 48 months of storage at -18°C. Long-term storage at -80°C was best for P. davidiana seeds with a wide range of SWCs (3-24%), with 91-98% of normal germination after 48 months of storage. However, the normal germination of P. koreana seeds with 3-24% SWC declined to <20% after 36 months of storage, even at -18°C and -80°C. No significant difference was observed between seeds immersed vs. not immersed in liquid nitrogen for both species. Our findings increase the possibility for long-term seed conservation for both Populus species.</div>
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<Abstract><AbstractText>The poplar species Populus davidiana and P. koreana are widely grown in plantations and as biofuel resources, but little is known about ex-situ seed conservation in poplar. To identify the optimal long-term seed storage conditions for these species, we evaluated the viability of seeds with different seed water contents (SWCs) at various storage temperatures and time periods. P. davidiana seeds with <6% SWC could be stored at room temperature (RT) for 4 weeks, while P. koreana seeds showed no storability at RT. P. davidiana seeds with 3% SWC showed 74% viability after 36 months of storage at 4°C, while those with 9-18% SWC showed >89% viability after 48 months of storage at -18°C. Long-term storage at -80°C was best for P. davidiana seeds with a wide range of SWCs (3-24%), with 91-98% of normal germination after 48 months of storage. However, the normal germination of P. koreana seeds with 3-24% SWC declined to <20% after 36 months of storage, even at -18°C and -80°C. No significant difference was observed between seeds immersed vs. not immersed in liquid nitrogen for both species. Our findings increase the possibility for long-term seed conservation for both Populus species.</AbstractText>
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Extending Populus seed longevity by controlling seed moisture content and temperature.

Extending Populus seed longevity by controlling seed moisture content and temperature.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki