The brassinosteroid receptor kinase, BRI1, plays a role in seed germination and the release of dormancy by cold stratification

Kim, Sang Yeol; Warpeha, Katherine M.; Huber, Steven C.

doi:10.1016/j.jplph.2019.153031

Cited by 54 publications

(40 citation statements)

References 31 publications

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“…Initially, BRs were described as growth-promoting phytohormones, although exogenous BRs can either promote or inhibit growth depending on their concentrations (Grove et al, 1979;Müssig et al, 2003). Genetic and biochemical approaches have established a pivotal role for BRs in many aspects of plant development and physiology by promoting: (1) cell elongation by alteration of the cytoskeleton dynamics (Wang et al, 2012;Ruan et al, 2018); (2) cell division through stimulation of cell cycle progression (González-García et al, 2011;Hacham et al, 2011);(3) xylem development (Kondo et al, 2014;Lee et al, 2019); (4) stomatal development (Gudesblat et al, 2012;Kim et al, 2012;Houbaert et al, 2018); (5) seed germination by activation of GA signalling and inactivation of ABA signalling (Steber and McCourt, 2001;Divi and Krishna, 2010;Kim et al, 2019); ( 6) plant reproduction through the regulation of floral transition, as well as male and female fertility (Vogler et al, 2014;Li and He, 2020); and (7) photomorphogenesis by regulation of the expression of photosynthesis and light-responsive genes (Song et al, 2009;Li and He, 2016). BRs have also been shown to function in plant responses to various abiotic stresses.…”

Section: Diverse Functions Of Br Phytohormonesmentioning

confidence: 99%

It takes two to tango – molecular links between plant immunity and brassinosteroid signalling

Ortiz-Morea

Shan

et al. 2020

Journal of Cell Science

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In response to the invasion of microorganisms, plants actively balance their resources for growth and defence, thus ensuring their survival. The regulatory mechanisms underlying plant immunity and growth operate through complex networks, in which the brassinosteroid phytohormone is one of the central players. In the past decades, a growing number of studies have revealed a multi-layered crosstalk between brassinosteroid-mediated growth and plant immunity. In this Review, by means of the tango metaphor, we immerse ourselves into the intimate relationship between brassinosteroid and plant immune signalling pathways that is tailored by the lifestyle of the pathogen and modulated by other phytohormones. The plasma membrane is the unique stage where brassinosteroid and immune signals are dynamically integrated and where compartmentalization into nanodomains that host distinct protein consortia is crucial for the dance. Shared downstream signalling components and transcription factors relay the tango play to the nucleus to activate the plant defence response and other phytohormonal signalling pathways for the finale. Understanding how brassinosteroid and immune signalling pathways are integrated in plants will help develop strategies to minimize the growth–defence trade-off, a key challenge for crop improvement.

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Section: Diverse Functions Of Br Phytohormonesmentioning

confidence: 99%

It takes two to tango – molecular links between plant immunity and brassinosteroid signalling

Ortiz-Morea

Shan

et al. 2020

Journal of Cell Science

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“…Brassinolide (BR), which has attracted much attention in recent years, also plays a unique role in germination. Compared with the WT, BR insensitive mutant bri has a lower germination rate, but it can finally germinate without exogenous BR [ 13 , 14 , 15 ]. However, the specific mechanism needs to be further studied.…”

Section: Introductionmentioning

confidence: 99%

Deep Sequencing of Small RNA Reveals the Molecular Regulatory Network of AtENO2 Regulating Seed Germination

Zheng

Jie

et al. 2021

IJMS

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Seed germination is a key step in the new life cycle of plants. In agriculture, we regard the rapid and consistent process of seed germination as one of the necessary conditions to measure the high quality and yield of crops. ENO2 is a key enzyme in glycolysis, which also plays an important role in plant growth and abiotic stress responses. In our study, we found that the time of seed germination in AtENO2 mutation (eno2−) was earlier than that of wild type (WT) in Arabidopsis thaliana. Previous studies have shown that microRNAs (miRNAs) were vital in seed germination. After deep sequencing of small RNA, we found 590 differentially expressed miRNAs in total, of which 87 were significantly differentially expressed miRNAs. By predicting the target genes of miRNAs and analyzing the GO annotation, we have counted 18 genes related to seed germination, including ARF family, TIR1, INVC, RR19, TUDOR2, GA3OX2, PXMT1, and TGA1. MiR9736-z, miR5059-z, ath-miR167a-5p, ath-miR167b, ath-miR5665, ath-miR866-3p, miR10186-z, miR8165-z, ath-miR857, ath-miR399b, ath-miR399c-3p, miR399-y, miR163-z, ath-miR393a-5p, and ath-miR393b-5p are the key miRNAs regulating seed germination-related genes. Through KEGG enrichment analysis, we found that phytohormone signal transduction pathways were significantly enriched, and these miRNAs mentioned above also participate in the regulation of the genes in plant hormone signal transduction pathways, thus affecting the synthesis of plant hormones and further affecting the process of seed germination. This study laid the foundation for further exploration of the AtENO2 regulation for seed germination.

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“…Cold stratification, incubation with gibberellic acid (hormone priming) and seed coat scarification has been shown to be successful in enhancing the germination rate of rosemary seeds having hard seed coat, embryo, and physiological seed dormancy [12,[37][38][39][40]. This could be a useful approach to apply to seeds such as buffaloberry, which also has multiple seed dormancies.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanoparticles Functionalized with Carboxylic Acid Improved the Germination and Seedling Vigor in Upland Boreal Forest Species

Ali

Sobze

et al. 2020

Nanomaterials

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Nanopriming has been shown to significantly improve seed germination and seedling vigor in several agricultural crops. However, this approach has not been applied to native upland boreal forest species with complex seed dormancy to improve propagation. Herein, we demonstrate the effectiveness of carbon nanoparticles functionalized with carboxylic acids in resolving seed dormancy and improved the propagation of two native upland boreal forest species. Seed priming with carbon nanoparticles functionalized with carboxylic acids followed by stratification were observed to be the most effective in improving germination to 90% in green alder (Alnus viridis L.) compared to 60% in the control. Conversely, a combination of carbon nanoparticles (CNPs), especially multiwall carbon nanoparticles functionalized with carboxylic acid (MWCNT–COOH), cold stratification, mechanical scarification and hormonal priming (gibberellic acid) was effective for buffaloberry seeds (Shepherdia canadensis L.). Both concentrations (20 µg and 40 µg) of MWCNT–COOH had a higher percent germination (90%) compared to all other treatments. Furthermore, we observed the improvement in germination, seedling vigor and resolution of both embryo and seed coat dormancy in upland boreal forest species appears to be associated with the remodeling of C18:3 enriched fatty acids in the following seed membrane lipid molecular species: PC18:1/18:3, PG16:1/18:3, PE18:3/18:2, and digalactosyldiacylglycerol (DGDG18:3/18:3). These findings suggest that nanopriming may be a useful approach to resolve seed dormancy issues and improve the seed germination in non-resource upland boreal forest species ideally suited for forest reclamation following resource mining.

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The brassinosteroid receptor kinase, BRI1, plays a role in seed germination and the release of dormancy by cold stratification

Cited by 54 publications

References 31 publications

It takes two to tango – molecular links between plant immunity and brassinosteroid signalling

It takes two to tango – molecular links between plant immunity and brassinosteroid signalling

Deep Sequencing of Small RNA Reveals the Molecular Regulatory Network of AtENO2 Regulating Seed Germination

Carbon Nanoparticles Functionalized with Carboxylic Acid Improved the Germination and Seedling Vigor in Upland Boreal Forest Species

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