A cold environment is a prerequisite for formation of "plastid initials" in winter buds of poplar.
Identifieur interne : 004C29 ( Main/Exploration ); précédent : 004C28; suivant : 004C30A cold environment is a prerequisite for formation of "plastid initials" in winter buds of poplar.
Auteurs : S. Sagisaka [Japon]Source :
- Plant physiology [ 0032-0889 ] ; 1992.
Abstract
The "plastid initial," the presumed precursor of eoplasts and proplastids, is present in the cells of the apical meristem of winter buds of poplar (Populus euramericana). The formation of the plastid initial in the cells of winter buds is initiated soon after the breaking of the innate or resting stage of dormancy, even in winter under nongrowing conditions in mid-January or early February. From this stage to March, the conglomeration of the plastid initial and the formation of prolamellar bodies is evident. In contrast to the poplar samples kept outdoors, the cells of the apical meristem of the indoor winter buds did not show any indication of the formation of the plastid initial and the buds of the latter sample did not flush even at the end of May. These results suggest that the sequence of reactions involved in the onset of regrowth may be closely related to the formation of the plastid initial.
DOI: 10.1104/pp.99.4.1657
PubMed: 16669087
PubMed Central: PMC1080677
Affiliations:
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Sagisaka</name><affiliation wicri:level="1"><nlm:affiliation>The Institute of Low Temperature Science, Hokkaido University, Sapporo 060, Japan.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>The Institute of Low Temperature Science, Hokkaido University, Sapporo 060</wicri:regionArea><wicri:noRegion>Sapporo 060</wicri:noRegion></affiliation></author></analytic><series><title level="j">Plant physiology</title><idno type="ISSN">0032-0889</idno><imprint><date when="1992" type="published">1992</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The "plastid initial," the presumed precursor of eoplasts and proplastids, is present in the cells of the apical meristem of winter buds of poplar (Populus euramericana). The formation of the plastid initial in the cells of winter buds is initiated soon after the breaking of the innate or resting stage of dormancy, even in winter under nongrowing conditions in mid-January or early February. From this stage to March, the conglomeration of the plastid initial and the formation of prolamellar bodies is evident. In contrast to the poplar samples kept outdoors, the cells of the apical meristem of the indoor winter buds did not show any indication of the formation of the plastid initial and the buds of the latter sample did not flush even at the end of May. These results suggest that the sequence of reactions involved in the onset of regrowth may be closely related to the formation of the plastid initial.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">16669087</PMID><DateCompleted><Year>2010</Year><Month>07</Month><Day>06</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0032-0889</ISSN><JournalIssue CitedMedium="Print"><Volume>99</Volume><Issue>4</Issue><PubDate><Year>1992</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>A cold environment is a prerequisite for formation of "plastid initials" in winter buds of poplar.</ArticleTitle><Pagination><MedlinePgn>1657-63</MedlinePgn></Pagination><Abstract><AbstractText>The "plastid initial," the presumed precursor of eoplasts and proplastids, is present in the cells of the apical meristem of winter buds of poplar (Populus euramericana). 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