Piriformospora indica promotes early flowering in Arabidopsis through regulation of the photoperiod and gibberellin pathways

Pan, Rui; Xu, Le; Qiao, Wei; Wu, Chu; Tang, Wenlin; Oelmüller, Ralf; Zhang, Wenying

doi:10.1371/journal.pone.0189791

Cited by 30 publications

(17 citation statements)

References 45 publications

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“…To determine the impact of P. indica on flowering time in Arabidopsis , Kim et al (2017) co-cultivated Arabidopsis plants with the fungus under long day condition, and these plants displayed an early flowering phenotype. The same results were reported by Pan et al (2017) . Colonized plants had higher transcript levels of the flowering regulatory genes FLOWERING LOCUS T , LEAFY , and APETALA1 , as well as of the GA biosynthetic genes Gibberellin 20-Oxidase 2 , Gibberellin 3-Oxidase 1 and Gibberellin Requiring 1 , while the flowering-repressing gene FLOWERING LOCUS C was down-regulated.…”

Section: Gibberellin (Ga)supporting

confidence: 90%

Role of Phytohormones in Piriformospora indica-Induced Growth Promotion and Stress Tolerance in Plants: More Questions Than Answers

Oelmüller

et al. 2018

Front. Microbiol.

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Phytohormones play vital roles in the growth and development of plants as well as in interactions of plants with microbes such as endophytic fungi. The endophytic root-colonizing fungus Piriformospora indica promotes plant growth and performance, increases resistance of colonized plants to pathogens, insects and abiotic stress. Here, we discuss the roles of the phytohormones (auxins, cytokinin, gibberellins, abscisic acid, ethylene, salicylic acid, jasmonates, and brassinosteroids) in the interaction of P. indica with higher plant species, and compare available data with those from other (beneficial) microorganisms interacting with roots. Crosstalks between different hormones in balancing the plant responses to microbial signals is an emerging topic in current research. Furthermore, phytohormones play crucial roles in systemic signal propagation as well as interplant communication. P. indica interferes with plant hormone synthesis and signaling to stimulate growth, flowering time, differentiation and local and systemic immune responses. Plants adjust their hormone levels in the roots in response to the microbes to control colonization and fungal propagation. The available information on the roles of phytohormones in beneficial root–microbe interactions opens new questions of how P. indica manipulates the plant hormone metabolism to promote the benefits for both partners in the symbiosis.

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Section: Gibberellin (Ga)supporting

confidence: 90%

Role of Phytohormones in Piriformospora indica-Induced Growth Promotion and Stress Tolerance in Plants: More Questions Than Answers

Oelmüller

et al. 2018

Front. Microbiol.

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“…P. indica is capable as a biohardening agent in different in vitro plants tested (Sahay and Varma 1999 ). P. indica also enhances early flowering in Arabidopsis through photoperiod and gibberellin pathways (Pan et al 2017 ). Although the fungus was isolated from hot conditions, P. indica has the ability to withstand both the extreme cold and hot conditions.…”

Section: Discussionmentioning

confidence: 99%

Multifunctional aspects of Piriformospora indica in plant endosymbiosis

Jisha

Manjula

2019

Mycology

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Piriformospora indica (Hymenomycetes, Basidiomycota) is an endophytic fungus that colonises plant roots, and was originally isolated from Rajasthan desert. It is comparable to Arbuscular Mycorrhizal (AM) fungi in terms of plant growth promotional effects. P. indica has been used as an ideal example to analyse the mechanisms of mutualistic symbiosis. Major benefit of P. indica over AM fungi is that it is axenically cultivable in different synthetic and complex media. A preliminary attempt was made to scrutinise the role of P. indica co-cultivation on seedling vigour of common vegetables like Cucumis sativus L., Abelmoschus esculentus (L.) Moench, Solanum melongena L. and Capsicum annuum L. The positive effect of P. indica co-culture on seedling performance was compared to the effects of growth hormones like indole acetic acid and benzyl amino purine when supplemented to the MS medium at a concentration of 0.1 mg ml −1. An exogenous supply of auxin resulted in enhanced production of roots and cytokinin supplement favoured shoot production, whereas P. indica co-culture favoured simultaneous production of shoot and root over the control. P. indica colonisation inside the roots of C. sativus L. was also successfully established. These preliminary results indicate the prospective role of P. indica in vegetable farming through its favourable effect on plant growth.

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“…long-day conditions [10]. Subsequently, FT associates with FLOWERING LOCUS D (FD), and the FT-FD complex promotes expression of the downstream floral meristem identity genes, such as APETALA1 (AP1) and LEAFY (LFY), to induce flowering [11]. In Arabidopsis, plant hormone signaling (via GA, jasmonic acid (JA), and auxins, etc.)…”

Section: Flowering Locus T (Ft) and Suppressor Of Overexpression Of Cmentioning

confidence: 99%

Transcriptomic analysis of flower induction for long-day pitaya by supplementary lighting in short-day winter season

Xiong

Liu

et al. 2020

Preprint

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Background: Pitayas are currently attracting considerable interest as a tropical fruit with numerous health benefits. However, as a long-day plant, pitaya plants cannot flower in the winter season from November to April in Hainan, China. To harvest pitayas with high economic value in the winter season, it is necessary to provide supplementary lighting at night to induce flowering. To further explore the molecular regulating mechanisms of flower induction in pitaya plants exposed to supplementary lighting, we used de novo RNA sequencing-based transcriptomic analysis for four stages of pitaya plants subjected to light induction. Results: We assembled 68113 unigenes in total, comprising 29782 unigenes with functional annotations in the NR database, 20716 annotations in SwissProt, 18088 annotations in KOG, and 11059 annotations in KEGG. Comparisons between different samples revealed different numbers of significantly differentially expressed genes (DEGs). A number of DEGs involved in energy metabolism-related processes and plant hormone signaling were detected. Moreover, we identified many CONSTANS-LIKE, FLOWERING LOCUS T, and other DEGs involved in the direct regulation of flowering including CDF and TCP, which function as typical transcription factor genes in the flowering process. At the transcriptomic level, we verified 13 DEGs with different functions in the time-course response to light-induced flowering by quantitative reverse-transcription PCR analysis. Conclusions: The identified DEGs may include some key genes controlling the pitaya floral-induction network, the flower induction and development is very complicated, and it involves photoperiod perception and different phytohormone signaling. These findings will increase our understanding to the molecular mechanism of floral regulation of long-day pitaya plants in short-day winter season induced by supplementary lighting.

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Piriformospora indica promotes early flowering in Arabidopsis through regulation of the photoperiod and gibberellin pathways

Cited by 30 publications

References 45 publications

Role of Phytohormones in Piriformospora indica-Induced Growth Promotion and Stress Tolerance in Plants: More Questions Than Answers

Role of Phytohormones in Piriformospora indica-Induced Growth Promotion and Stress Tolerance in Plants: More Questions Than Answers

Multifunctional aspects of Piriformospora indica in plant endosymbiosis

Transcriptomic analysis of flower induction for long-day pitaya by supplementary lighting in short-day winter season

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