ArticleAnnals of botany2020
Differential regulatory pathways associated with drought-inhibition and post-drought recuperation of rhizome development in perennial grass.
Article in Annals of botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 20 citations in OpenAlex.
- The genetic and developmental enigma of rhizomes: crucial traits with limited understanding.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- Deciphering intra-connectivity of gene network response to drought and salinity in apple.Frontiers in plant science · 2026Article
- Transcriptome-Based Weighted Gene Co-Expression Network Analysis Reveals the Photosynthesis Pathway and Hub Genes Involved in Promoting Tiller Growth under Repeated Drought-Rewatering Cycles in Perennial Ryegrass.Plants (Basel, Switzerland) · 2024Article
- Cytokinin and Metabolites Affect Rhizome Growth and Development in Kentucky Bluegrass (Biology · 2023Article
- Carbon and nitrogen metabolism affects kentucky bluegrass rhizome expansion.BMC plant biology · 2023Article
- Identification of LsPIN1 gene and its potential functions in rhizome turning of Leymus secalinus.BMC genomics · 2022Article
- Potential roles of melatonin and ABA on apple dwarfing in semi-arid area of Xinjiang China.PeerJ · 2022Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsRhizomes are key organs for the establishment of perennial grass stands and adaptation to environmental stress. However, mechanisms regulating rhizome initiation and elongation under drought stress and during post-drought recovery remain unclear. The objective of this study is to investigate molecular factors and metabolic processes involved in drought effects and post-drought recovery in rhizome growth in perennial grass species by comparative transcriptomic and proteomic profiling.
methodsTall fescue (Festuca arundinacea) (B-type rhizome genotype, 'BR') plants were exposed to drought stress and re-watering in growth chambers. The number and length of rhizomes were measured following drought stress and re-watering. Hormone and sugar contents were analysed, and transcriptomic and proteomic analyses were performed to identify metabolic factors, genes and proteins associated with rhizome development. KEY
resultsRhizome initiation and elongation were inhibited by drought stress, and were associated with increases in the contents of abscisic acid (ABA) and soluble sugars, but declines in the contents of indoleacetic acid (IAA), zeatin riboside (ZR) and gibberellin (GA4). Genes involved in multiple metabolic processes and stress defence systems related to rhizome initiation exhibited different responses to drought stress, including ABA signalling, energy metabolism and stress protection. Drought-inhibition of rhizome elongation could be mainly associated with the alteration of GA4 and antioxidants contents, energy metabolism and stress response proteins. Upon re-watering, new rhizomes were regenerated from rhizome nodes previously exposed to drought stress, which was accompanied by the decline in ABA content and increases in IAA, ZR and GA4, as well as genes and proteins for auxin, lipids, lignin and nitrogen metabolism.
conclusionsDrought-inhibition of rhizome initiation and elongation in tall fescue was mainly associated with adjustments in hormone metabolism, carbohydrate metabolism and stress-defence systems. Rhizome regeneration in response to re-watering involved reactivation of hormone and lipid metabolism, secondary cell-wall development, and nitrogen remobilization and cycling.
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