2006
DOI: 10.1007/s10265-006-0050-3
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The anatomy of the chi-chi of Ginkgo biloba suggests a mode of elongation growth that is an alternative to growth driven by an apical meristem

Abstract: The chi-chi of Ginkgo biloba L. are cylindrical woody structures that grow downwards from the branches and trunks of old trees, eventually entering the soil where they give rise to adventitious shoots and roots. Examination of segments of young chi-chi taken from a mature ginkgo tree revealed an internal woody portion with irregular growth rings of tracheid-containing secondary xylem covered by a vascular cambium and bark. The cambium was composed of both fusiform cells and parenchymatous ray cells. Near the t… Show more

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Cited by 10 publications
(11 citation statements)
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“…Serial Sections (3 µm thick; longitudinal or transverse) were cut using Hydrax M40 microtome (Zeiss, Germany) and attached to microscope slides with Haupt's adhesive. Sections were stained with PAS-reaction + toluidine blue (Sigma-Aldrich; Barlow and Kurczynska 2007) and with Sudan IV to localize lipid substances (Sigma-Aldrich; O'Brien and McCully 1981) and analyzed under a Nikon light microscope equipped with colour camera (Eclipse Ni; Nikon Instruments Inc., The Netherlands). Six regenerating structures from each of six explants (a total of 36 samples) were analyzed.…”
Section: Histological Characterization Of Regenerating Structuresmentioning
confidence: 99%
“…Serial Sections (3 µm thick; longitudinal or transverse) were cut using Hydrax M40 microtome (Zeiss, Germany) and attached to microscope slides with Haupt's adhesive. Sections were stained with PAS-reaction + toluidine blue (Sigma-Aldrich; Barlow and Kurczynska 2007) and with Sudan IV to localize lipid substances (Sigma-Aldrich; O'Brien and McCully 1981) and analyzed under a Nikon light microscope equipped with colour camera (Eclipse Ni; Nikon Instruments Inc., The Netherlands). Six regenerating structures from each of six explants (a total of 36 samples) were analyzed.…”
Section: Histological Characterization Of Regenerating Structuresmentioning
confidence: 99%
“…Abaixo dessa periderme, os tecidos vasculares são formados a partir de cordões procambiais presentes no ápice promovendo o crescimento do rizóforo, chamado de crescimento por expansão apical, sem gema terminal, por Menezes (2007). Barlow & Kurczyńska (2007) estudaram os "chi-chi" de Ginkgo biloba, os quais são estruturas espessadas que crescem a partir do caule aéreo em direção ao solo e produzem novos ramos e raízes. Existem dois tipos de "chi-chi" em árvores de Ginkgo biloba, um basal que se forma no nível do solo, e outro aéreo encontrado nos ramos e no tronco (Del Tredici 1992 apud Barlow & Kurczyńska 2007).…”
Section: Levantamento Histórico Sobre O Rizóforounclassified
“…Existem dois tipos de "chi-chi" em árvores de Ginkgo biloba, um basal que se forma no nível do solo, e outro aéreo encontrado nos ramos e no tronco (Del Tredici 1992 apud Barlow & Kurczyńska 2007). Barlow & Kurczyńska (2007) fazem uma associação semelhante a que Goebel (1905) havia feito, também em Ginkgophyta, e que Menezes et al (1979) fez em Vernonia, na qual a produção de raízes por essas estruturas sugerem que elas poderiam ser rizóforos, uma vez que o termo rizóforo é empregado para um órgão que não é uma raiz, mas produz raízes em…”
Section: Levantamento Histórico Sobre O Rizóforounclassified
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