Changes in free and conjugated indole-3-acetic acid during early stage of flower bud differentiation in Polianthes tuberosa

Ding, Shih-Fen; Chen, Wen-Shaw; Su, Chi-Ling; Du, Bo-Shiun; Twitchin, B.; Bhaskar, Vijaya

doi:10.1016/s0981-9428(99)80078-3

Cited by 13 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, flower differentiation of sweet cherry begins immediately after harvest of the present year's crop (Watanabe, Umetsu 1980;Guimond et al 1998;Engin, Ünal 2007). On the other hand, fast development of the leaf primordia, and of young leaves during the early stage of growth, is a prerequisite for floral initiation (Ding et al 1999). Our results also found that the flower initiation in Shanghai showed a more rapid process compared to Qingdao before July 1 because of the earlier phenological stages (Table 5).…”

Section: Discussionsupporting

confidence: 67%

Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China

Li¹,

Xie²,

Zhang³

et al. 2010

Hortic. Sci.

View full text Add to dashboard Cite

Li B., Xie Z., Zhang A., Xu W., Zhang C., Liu Q., Liu C., Wang S., 2010. Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China. Hort. Sci. (Prague), 37: 6-13.The phenological stages, flower characteristics, shoot growth and flower bud differentiation of sweet cherries, cv. Hongdeng and Van, were investigated in different climatic zones in China, subtropical monsoon climatic zone (Shanghai, 31°14'N, 121°29'E) and temperate climatic zone (Qingdao, 37°09'N, 121°20'E). Sweet cherry trees grown in subtropical monsoon climatic zone had earlier phenological stage and longer blooming duration than those grown in temperate climatic zone. Fruit growth periods of Hongdeng and Van in Qingdao were 38 days and 51 days, respectively, but only 29 days and 45 days in Shanghai. Both cultivars showed more abnormal flowers under subtropical monsoon climate. The percentage of fruit set under open pollination in Hongdeng and Van were 31% and 24% in Qingdao, respectively, but only 0.4% and 3.2% in Shanghai. The trees grew more vigorous in Shanghai; flower bud differentiation was delayed by high temperature and superabundant rainfall in subtropical monsoon climate zone and more easily affected by the overlap of current shoot growth.

show abstract

Section: Discussionsupporting

confidence: 67%

Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China

Li¹,

Xie²,

Zhang³

et al. 2010

Hortic. Sci.

View full text Add to dashboard Cite

show abstract

“…It has been reported that free endogenous IAA was intimate correlated with the early stage of flower bud differentiation, high concentration of IAA, which act in apical bud will promote flowering. [36,[51][52][53]. Seven DlARFs genes (DlARF-1,-2,-6,-8,-9,-11,-16) have been identified to show higher expression levels during longan floral bud induction and flower organ development.…”

Section: Discussionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of Auxin Response Factor (ARF) Gene Family in Longan (Dimocarpus longan L.)

Yuan

Fang

Zhou

et al. 2020

Plants

View full text Add to dashboard Cite

Auxin response factor (ARF) is the key regulator involved in plant development. Despite their physiological importance identified in various woody plants, the functions of ARF genes in longan were still not clear. In this study, 17 longan ARF genes (DlARF) were identified using the reference longan genome data. According to the phylogenetic relationships among longan, Arabidopsis and apple, DlARFs were divided into four classes. Most DlARFs showed a closer relationship with ARFs from apple than those from Arabidopsis. The analysis of gene structure and domain revealed high similarity of different ARF genes in the same class. Typical features of B3-type DNA binding domain (DBD) motif, Auxin Resp motifs, and a highly conserved C-terminal Phox and Bem1 (PB1) domain were present in all DlARFs except for DlARF-2,-3,-13 which lacked PBI domain. Expression profiles of 17 DlARF genes in longan different tissues showed that some DlARF genes were tissues-specific genes. Analysis of three longan transcriptomes showed seven DlARFs (DlARF-1,-2,-6,-8,-9,-11,-16) had higher expression levels during floral bud differentiation of common longan and in the buds of 'Sijimi', suggesting these genes may promote floral bud differentiation in longan. Further qPCR analysis showed that among seven DlARF genes, the expression levels of DlARF-2,-6,-11,-16 increased significantly during the physiological differentiation stage of longan floral buds, confirming that they may play a role in flowering induction. Promoter sequence analysis revealed cis-elements related to flowering induction such as low-temperature responsiveness motif and circadian control motif. Motifs linked with hormone response for instance Auxin, MeJA, Gibberellin, and Abscisic acid were also found in promoters. This study provides a comprehensive overview of the ARF gene family in longan. Our findings could provide new insights into the complexity of the regulation of ARFs at the transcription level that may be useful to develop breeding strategies to improve development or promote flowering in longan.

show abstract

“…Gibberellic acid, or gibberellin A3 (GA 3 ), plays an essential role in the development of floral organs (Goto & Pharis, 1999;Sawhney, 1983) and increases the numbers of petal, stamens, carpels and locules (Carrera, Ruiz-Rivero, Peres, Atares, & Garcia-Martinez, 2012), and flowers (Chen, Henny, McConnell, & Caldwell, 2003). The variation in indoleacetic acid (IAA) correlates with early floral initiation (Ding et al, 1999), and the application of IAA may induce flowering (Brcko et al, 2012;Wang & Guo, 2015). As a high activity of the cytokinin, zeatin riboside (ZR) can promote cell division, stimulate floral formation, and prevent leaf senescence by activating gene expression and metabolic activity (Galoch, Czaplewska, Burkacka-Łaukajtys, & Kopcewicz, 2002;Singh, Palni, & Letham, 1992;Subbaraj, Funnell, & Woolley, 2010), and its concentrations are significantly increased in the leaf, leaf exudate, and shoot apical meristem during early floral transition events (Corbesier et al, 2003).…”

mentioning

confidence: 99%

Sex‐specific floral morphology, biomass, and phytohormones associated with altitude in dioecious Populus cathayana populations

Dong

Huang

et al. 2017

Ecology and Evolution

View full text Add to dashboard Cite

Relationships between sex‐specific floral traits and endogenous phytohormones associated with altitude are unknown particularly in dioecious trees. We thus examined the relationships between floral morphology or biomass and phytohormones in male and female flowers of dioecious Populus cathayana populations along an altitudinal gradient (1,500, 1,600, and 1,700 m above sea level) in the Xiaowutai Nature Reserve in northern China. The female and male flowers had the most stigma and pollen at 1,700 m, the largest ovaries and least pollen at 1,500 m, and the smallest ovaries and greater numbers of anthers at 1,600 m altitude. The single‐flower biomass was significantly greater in males than in females at 1,600 or 1,700 m, but the opposite was true at 1,500 m altitude. The biomass percentages were significantly higher in anthers than in stigmas at each altitude, while significantly greater gibberellin A3 (GA 3), zeatin riboside (ZR), indoleacetic acid (IAA), and abscisic acid (ABA) concentrations were found in female than in male flowers. Moreover, most flower morphological traits positively correlated with IAA in females but not in males. The biomass of a single flower was significantly positively correlated with ABA or IAA in males but negatively with ZR in females and was not correlated with GA 3 in both females and males. Our results demonstrate a distinct sexual adaptation between male and female flowers and that phytohormones are closely related to the size, shape, and biomass allocation in the pollination or fertilization organs of dioecious plants, although with variations in altitude.

show abstract

Changes in free and conjugated indole-3-acetic acid during early stage of flower bud differentiation in Polianthes tuberosa

Cited by 13 publications

References 12 publications

Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China

Tree growth characteristics and flower bud differentiation of sweet cherry (Prunus avium L.) under different climate conditions in China

Genome-Wide Identification and Expression Analysis of Auxin Response Factor (ARF) Gene Family in Longan (Dimocarpus longan L.)

Sex‐specific floral morphology, biomass, and phytohormones associated with altitude in dioecious Populus cathayana populations

Contact Info

Product

Resources

About