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Transcriptome Dynamic Landscape Underlying the Improvement of Maize Lodging Resistance Under Coronatine Treatment

Overview
Journal BMC Plant Biol
Publisher Biomed Central
Specialty Biology
Date 2021 Apr 28
PMID 33906598
Citations 3
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Abstract

Background: Lodging is one of the important factors causing maize yield. Plant height is an important factor in determining plant architecture in maize (Zea mays L.), which is closely related to lodging resistance under high planting density. Coronatine (COR), which is a phytotoxin and produced by the pathogen Pseudomonas syringae, is a functional and structural analogue of jasmonic acid (JA).

Results: In this study, we found COR, as a new plant growth regulator, could effectively reduce plant height and ear height of both hybrids (ZD958 and XY335) and inbred (B73) maize by inhibiting internode growth during elongation, thus improve maize lodging resistance. To study gene expression changes in internode after COR treatment, we collected spatio-temporal transcriptome of inbred B73 internode under normal condition and COR treatment, including the three different regions of internode (fixed, meristem and elongation regions) at three different developmental stages. The gene expression levels of the three regions at normal condition were described and then compared with that upon COR treatment. In total, 8605 COR-responsive genes (COR-RGs) were found, consist of 802 genes specifically expressed in internode. For these COR-RGs, 614, 870, 2123 of which showed expression changes in only fixed, meristem and elongation region, respectively. Both the number and function were significantly changed for COR-RGs identified in different regions, indicating genes with different functions were regulated at the three regions. Besides, we found more than 80% genes of gibberellin and jasmonic acid were changed under COR treatment.

Conclusions: These data provide a gene expression profiling in different regions of internode development and molecular mechanism of COR affecting internode elongation. A putative schematic of the internode response to COR treatment is proposed which shows the basic process of COR affecting internode elongation. This research provides a useful resource for studying maize internode development and improves our understanding of the COR regulation mechanism based on plant height.

Citing Articles

Coronatine-Based Gene Expression Changes Impart Partial Resistance to Fall Armyworm () in Seedling Maize.

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Integration of transcriptome and metabolome analyses reveals key lodging-resistance-related genes and metabolic pathways in maize.

Liu L, Liu S, Lu H, Tian Z, Zhao H, Wei D Front Genet. 2022; 13:1001195.

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Genome-Wide Identification of Gramineae Brassinosteroid-Related Genes and Their Roles in Plant Architecture and Salt Stress Adaptation.

Huang J, Ma S, Zhang K, Liu X, Hu L, Wang W Int J Mol Sci. 2022; 23(10).

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References
1.
Castano-Duque L, Helms A, Ali J, Luthe D . Plant Bio-Wars: Maize Protein Networks Reveal Tissue-Specific Defense Strategies in Response to a Root Herbivore. J Chem Ecol. 2018; 44(7-8):727-745. DOI: 10.1007/s10886-018-0972-y. View

2.
Sakamoto T, Miura K, Itoh H, Tatsumi T, Ueguchi-Tanaka M, Ishiyama K . An overview of gibberellin metabolism enzyme genes and their related mutants in rice. Plant Physiol. 2004; 134(4):1642-53. PMC: 419838. DOI: 10.1104/pp.103.033696. View

3.
Zhang Y, Wang Y, Ye D, Xing J, Duan L, Li Z . Ethephon-regulated maize internode elongation associated with modulating auxin and gibberellin signal to alter cell wall biosynthesis and modification. Plant Sci. 2019; 290:110196. DOI: 10.1016/j.plantsci.2019.110196. View

4.
Kende , van der Knaap E , CHO . Deepwater rice: A model plant to study stem elongation . Plant Physiol. 1998; 118(4):1105-10. PMC: 1539197. DOI: 10.1104/pp.118.4.1105. View

5.
Knoller A, Blakeslee J, Richards E, Peer W, Murphy A . Brachytic2/ZmABCB1 functions in IAA export from intercalary meristems. J Exp Bot. 2010; 61(13):3689-96. PMC: 2921204. DOI: 10.1093/jxb/erq180. View