ArticlePlant physiology2022
A PLETHORA/PIN-FORMED/auxin network mediates prehaustorium formation in the parasitic plant Striga hermonthica.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 19 citations in OpenAlex.
- Quantitative live-cell imaging of auxin and cytokinin signalling in developing feeding sites ofPlant signaling & behavior · 2026Article
- The role of hormones in parasitic plant infection.Plant & cell physiology · 2026Review
- 6-Hydroxynicotinic Acid From Cucumis melo Inhibits Prehaustorium Formation in Phelipanche aegyptiaca via Disruption of Auxin Signalling Pathway.Molecular plant pathology · 2025Article
- IAA-Mediated Haustorium Formation inPlants (Basel, Switzerland) · 2025Article
- Striga hermonthica induces lignin deposition at the root tip to facilitate prehaustorium formation and obligate parasitism.Plant communications · 2025Article
- A computational Evo-Devo approach for elucidating the roles of PLETHORA transcription factors in regulating root development.PloS one · 2025Article
- Rooting for survival: how plants tackle a challenging environment through a diversity of root forms and functions.Plant physiology · 2024Review
- Parasitic Plants-Potential Vectors of Phytopathogens.Pathogens (Basel, Switzerland) · 2024Review
- A roadmap of haustorium morphogenesis in parasitic plants.Journal of experimental botany · 2023Article
- Protein Profiling ofPlants (Basel, Switzerland) · 2023Article
- Phenolic signals for prehaustorium formation inFrontiers in plant science · 2022Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The parasitic plant Striga (Striga hermonthica) invades the host root through the formation of a haustorium and has detrimental impacts on cereal crops. The haustorium results from the prehaustorium, which is derived directly from the differentiation of the Striga radicle. The molecular mechanisms leading to radicle differentiation shortly after germination remain unclear. In this study, we determined the developmental programs that regulate terminal prehaustorium formation in S. hermonthica at cellular resolution. We showed that shortly after germination, cells in the root meristem undergo multiplanar divisions. During growth, the meristematic activity declines and associates with reduced expression of the stem cell regulator PLETHORA1 and the cell cycle genes CYCLINB1 and HISTONE H4. We also observed a basal localization of the PIN-FORMED (PIN) proteins and a decrease in auxin levels in the meristem. Using the structural layout of the root meristem and the polarity of outer-membrane PIN proteins, we constructed a mathematical model of auxin transport that explains the auxin distribution patterns observed during S. hermonthica root growth. Our results reveal a fundamental molecular and cellular framework governing the switch of S. hermonthica roots to form the invasive prehaustoria.
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