Morphological study of the structure and development of longan inflorescence

The structure and developmental patterns of inflorescence of longan (Dimocarpus longan Lour.) were studied microscopically and by the naked eye. In inflorescence of longan, compound dichasia are arranged on three to four orders of monopodial axes without the formation of terminal flowers, indicating...

Full description

Saved in:
Bibliographic Details
Main Authors: Miki Nakata, Nobuo Sugiyama, Tanachai Pankasemsuk
Format: Journal
Published: 2018
Subjects:
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744500784&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61998
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Chiang Mai University
id th-cmuir.6653943832-61998
record_format dspace
spelling th-cmuir.6653943832-619982018-09-11T09:21:42Z Morphological study of the structure and development of longan inflorescence Miki Nakata Nobuo Sugiyama Tanachai Pankasemsuk Agricultural and Biological Sciences Biochemistry, Genetics and Molecular Biology The structure and developmental patterns of inflorescence of longan (Dimocarpus longan Lour.) were studied microscopically and by the naked eye. In inflorescence of longan, compound dichasia are arranged on three to four orders of monopodial axes without the formation of terminal flowers, indicating that longan inflorescence is pleiothyrse; cymose partial inflorescences are arranged on more than two monopodial axes. Most of the monopodial axes had differentiated by the end of November just before the cool season. The first sign of inflorescence formation was the appearance of bract primordia at apical meristems of the preformed monopodial axes, with lateral axes preceding the main axes. Dichasia were formed in the axils of bract primordia, and the formation of bracts and dichasia continued. Bract appearance can be detected by the naked eye 1 week after microscopically detected bract appearance. Shoots with intermediate characteristics between the inflorescence and the vegetative shoots were formed; dichasia were formed on the lateral axes, but not on the main axes in intermediate shoots. These results suggest that apical meristems on the terminal shoot produce monopodial axes, together with foliage leaf primordia, before floral induction, but produce bract primordia and compound dichasia, which are composed of sympodial axes, after floral induction. 2018-09-11T09:20:45Z 2018-09-11T09:20:45Z 2005-11-01 Journal 00031062 2-s2.0-27744500784 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744500784&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61998
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Agricultural and Biological Sciences
Biochemistry, Genetics and Molecular Biology
spellingShingle Agricultural and Biological Sciences
Biochemistry, Genetics and Molecular Biology
Miki Nakata
Nobuo Sugiyama
Tanachai Pankasemsuk
Morphological study of the structure and development of longan inflorescence
description The structure and developmental patterns of inflorescence of longan (Dimocarpus longan Lour.) were studied microscopically and by the naked eye. In inflorescence of longan, compound dichasia are arranged on three to four orders of monopodial axes without the formation of terminal flowers, indicating that longan inflorescence is pleiothyrse; cymose partial inflorescences are arranged on more than two monopodial axes. Most of the monopodial axes had differentiated by the end of November just before the cool season. The first sign of inflorescence formation was the appearance of bract primordia at apical meristems of the preformed monopodial axes, with lateral axes preceding the main axes. Dichasia were formed in the axils of bract primordia, and the formation of bracts and dichasia continued. Bract appearance can be detected by the naked eye 1 week after microscopically detected bract appearance. Shoots with intermediate characteristics between the inflorescence and the vegetative shoots were formed; dichasia were formed on the lateral axes, but not on the main axes in intermediate shoots. These results suggest that apical meristems on the terminal shoot produce monopodial axes, together with foliage leaf primordia, before floral induction, but produce bract primordia and compound dichasia, which are composed of sympodial axes, after floral induction.
format Journal
author Miki Nakata
Nobuo Sugiyama
Tanachai Pankasemsuk
author_facet Miki Nakata
Nobuo Sugiyama
Tanachai Pankasemsuk
author_sort Miki Nakata
title Morphological study of the structure and development of longan inflorescence
title_short Morphological study of the structure and development of longan inflorescence
title_full Morphological study of the structure and development of longan inflorescence
title_fullStr Morphological study of the structure and development of longan inflorescence
title_full_unstemmed Morphological study of the structure and development of longan inflorescence
title_sort morphological study of the structure and development of longan inflorescence
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744500784&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61998
_version_ 1681425725171695616