|Table of Contents|

Changes of Plant Hormones During Fruit Development and? Ripening Process in Blackberry Fruits

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年12
Page:
13-19
Research Field:
Publishing date:

Info

Title:
Changes of Plant Hormones During Fruit Development and? Ripening Process in Blackberry Fruits
Author(s):
XIONG Zhenhao1ZHANG Chunhong1LI Weilin12WU Wenlong1
(1.Institute of Botany,Jiangsu Province and Chinese Academy of Sciences,Nanjing,Jiangsu 210014;2.Academy of Forestry,Nanjing Forestry University,Nanjing,Jiangsu 210037)
Keywords:
blackberry (Rubus spp.)fruit developmentfruit firmnessethyleneabscisic acid
PACS:
-
DOI:
10.11937/bfyy.20174751
Abstract:
Blackberry cultivars ‘Arapaho’(high hardness) and ‘Boysen’(low hardness) were used as tested materials.The changing trends of ethylene (ETH),abscisic acid (ABA) and brassinosteroids (BR) contents were comparatively analyzed during the on-tree turning and ripening stages of blackberry fruits,in order to supply data for revealing the regulation roles of harmones during the ripening process of blackberry fruits.The results showed that ‘Arapaho’ and ‘Boysen’ began to turn to maturity color after 12 days after flowering (DAF) and 24 DAF respectively,and the growth and development indexes increased rapidly after the color conversion.The ETH content in ‘Arapaho’ fruits showed small peaks at 21 DAF and 33-36 DAF,and decreased significantly at the end of ripening.The ETH content in ‘Boysen’ showed peaks at the stages of 15 DAF,24 DAF,30-33 DAF and ripening,and the highest ETH content emerged at the full maturity stage.The ABA contents in ‘Arapaho’ and ‘Boysen’ fruits were both lower at the early stage after the formation of small drupes following two peaks in the middle and late stages,and they decreased significantly after ripening.The BR contents in ‘Arapaho’ and ‘Boysen’ decreased gradually in the early stage after the formation of small drupes,and then showed the decrease following increase in the middle and late stages.The BR contents decreased significantly when the fruit was closed to ripening or at the ripening stage.The results suggested that three hormones were all involved in the process of fruit ripening of ‘Arapaho’ and ‘Boysen’ and higher contents of ETH and ABA were accompanied with the rapid development of fruits.Especially,the relationship between ABA content and initiation of the fruit ripening was more closely.The two blackberry cultivars had large differences in the dynamic change in ETH content,but showed certain similarity in the dynamic change trends in ABA and BR contents.

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Last Update: 2018-07-13