GA4 and IAA were involved in the morphogenesis and development of flowers in Agapanthus praecox ssp. orientalis

Zhang, Di; Ren, Li; Yue, Jianhua; Wang, Ling; LiHuan, Zhuo; Shen, Xiaohui

doi:10.1016/j.jplph.2014.01.012

Cited by 37 publications

(19 citation statements)

References 34 publications

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“…This implies that AMF may regulate flower development and blooming by means of accelerating IAA synthesis. Total GAs are a kind of important hormones to promote the formation of flowers (Zhang et al, 2014). However, in the present study, mycorrhizal inoculation did not significantly affect GAs level in flowers of hyacinth plants, which is in agreement with previous study in trifoliate orange under mycorrhization with F. mosseae (Liu et al, 2016).…”

Section: Discussionsupporting

confidence: 92%

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Xie

2018

Emir J Food Agric

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Arbuscular mycorrhizal fungi (AMF) represent positive effects on growth performance, nutrient absorption and stressed tolerance of host plants, whereas it is not clear whether AMF can affect flowering traits of ornamental plants. In this work, Diversispora spurca, D. versiformis, and Funneliformis mosseae were applied to rhizosphere of potted hyacinth (Hyacinths orientalis L. Anna Marie) plants. After four months of mycorrhizal inoculation, root could be colonized by exogenous AMF species, varied from 38% to 49%, whilst F. mosseae had the best mycorrhizal status. Out of these AMF species used, only F. mosseae-inoculated plants recorded greater raceme length and biomass production of single flowerlet, raceme, and flower stem. F. mosseae also induced the flowering earlier in 2 days and prolonged flowering time for 3 days. D. versiformis postponed 2 days for flowering. Mycorrhizal plants recorded considerably higher acetic acid (IAA) and zeatin riboside (ZR) levels in flowers, irrespective of AMF species. F. mosseae-inoculated plants had significantly higher methyl jasmonate (MeJA) concentrations in flowers than other AMF- or non-AMF-treated plants. These results thereby conclude that F. mosseae can be used to regulate flowering of H. orientalis L. Anna Marie, including flowering earlier and prolonging flowering time, which is closely associated with IAA, ZR and MeJA levels in flowers.

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Section: Discussionsupporting

confidence: 92%

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Xie

2018

Emir J Food Agric

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“…Moreover, studies showed that the stimulated bud growth in bent shoots was related to the increased sink capacity of the bud relative to the adjacent shoot tissues and the relatively higher IAA level (Han et al ., ). In addition, during the vegetative to inflorescence bud stages, IAA increased by 581% in the shoot tips, the most significant change during flowering (Zhang et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Shoot bending promotes flower bud formation by miRNA‐mediated regulation in apple (Malus domestica Borkh.)

Xing

Zhang

Zhao

et al. 2015

Plant Biotechnology Journal

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SummaryFlower induction in apple (Malus domestica Borkh.) trees plays an important life cycle role, but young trees produce fewer and inferior quality flower buds. Therefore, shoot bending has become an important cultural practice, significantly promoting the capacity to develop more flower buds during the growing seasons. Additionally, microRNAs (miRNAs) play essential roles in plant growth, flower induction and stress responses. In this study, we identified miRNAs potentially involved in the regulation of bud growth, and flower induction and development, as well as in the response to shoot bending. Of the 195 miRNAs identified, 137 were novel miRNAs. The miRNA expression profiles revealed that the expression levels of 68 and 27 known miRNAs were down‐regulated and up‐regulated, respectively, in response to shoot bending, and that the 31 differentially expressed novel miRNAs between them formed five major clusters. Additionally, a complex regulatory network associated with auxin, cytokinin, abscisic acid (ABA) and gibberellic acid (GA) plays important roles in cell division, bud growth and flower induction, in which related miRNAs and targets mediated regulation. Among them, miR396, 160, 393, and their targets associated with AUX, miR159, 319, 164, and their targets associated with ABA and GA, and flowering‐related miRNAs and genes, regulate bud growth and flower bud formation in response to shoot bending. Meanwhile, the flowering genes had significantly higher expression levels during shoot bending, suggesting that they are involved in this regulatory process. This study provides a framework for the future analysis of miRNAs associated with multiple hormones and their roles in the regulation of bud growth, and flower induction and formation in response to shoot bending in apple trees.

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“…In Agapanthus praecox ssp. orientalis , GA signaling regulates the scape elongation and stimulates early-flowering, while indoleacetic acid (IAA) signaling delays flowering slightly (Zhang et al, 2014a). …”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis and Identification of Genes Associated with Floral Transition and Flower Development in Sugar Apple (Annona squamosa L.)

et al. 2016

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Sugar apple (Annona squamosa L.) is a semi-deciduous subtropical tree that progressively sheds its leaves in the spring. However, little information is available on the mechanism involved in flower developmental pattern. To gain a global perspective on the floral transition and flower development of sugar apple, cDNA libraries were prepared independently from inflorescent meristem and three flowering stages. Illumina sequencing generated 107,197,488 high quality reads that were assembled into 71,948 unigenes, with an average sequence length of 825.40 bp. Among the unigenes, various transcription factor families involved in floral transition and flower development were elucidated. Furthermore, a Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis revealed that unigenes exhibiting differential expressions were involved in various phytohormone signal transduction events and circadian rhythms. In addition, 147 unigenes exhibiting sequence similarities to known flowering-related genes from other plants were differentially expressed during flower development. The expression patterns of 20 selected genes were validated using quantitative-PCR. The expression data presented in our study is the most comprehensive dataset available for sugar apple so far and will serve as a resource for investigating the genetics of the flowering process in sugar apple and other Annona species.

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GA4 and IAA were involved in the morphogenesis and development of flowers in Agapanthus praecox ssp. orientalis

Cited by 37 publications

References 34 publications

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Shoot bending promotes flower bud formation by miRNA‐mediated regulation in apple (Malus domestica Borkh.)

Transcriptome Analysis and Identification of Genes Associated with Floral Transition and Flower Development in Sugar Apple (Annona squamosa L.)

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