ArticleProceedings of the National Academy of Sciences of the United States of America1999
Transient and sustained increases in inositol 1,4,5-trisphosphate precede the differential growth response in gravistimulated maize pulvini.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.
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Who cites it
59 citing papers in PubMed, 199 citations in OpenAlex.
- Exploring plant responses to altered gravity for advancing space agriculture.Plant communications · 2025Review
- The Vacuolar Inositol Transporter BvINT1;1 Contributes to Raffinose Biosynthesis and Reactive Oxygen Species Scavenging During Cold Stress in Sugar Beet.Plant, cell & environment · 2025Article
- Phosphoinositides in plant-pathogen interaction: trends and perspectives.Stress biology · 2023Review
- Biased gene expression reveals the contribution of subgenome to altitude adaptation in allopolyploidEcology and evolution · 2022Article
- Exogenous melatonin enhances the growth and production of bioactive metabolites in Lemna aequinoctialis culture by modulating metabolic and lipidomic profiles.BMC plant biology · 2022Article
- The functions of phospholipases and their hydrolysis products in plant growth, development and stress responses.Progress in lipid research · 2022Review
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- The AtCRK5 Protein Kinase Is Required to Maintain the ROS NO Balance Affecting the PIN2-Mediated Root Gravitropic Response in Arabidopsis.International journal of molecular sciences · 2021Article
- Metabolomics by UHPLC-HRMS reveals the impact of heat stress on pathogen-elicited immunity in maize.Metabolomics : Official journal of the Metabolomic Society · 2021Article
- A putative tomato inositol polyphosphate 5-phosphatase, Le5PT1, is involved in plant growth and abiotic stress responses.3 Biotech · 2020Article
- Distribution of Endogenous NO Regulates Early Gravitropic Response and PIN2 Localization in Arabidopsis Roots.Frontiers in plant science · 2018Article
- The Tonoplastic Inositol Transporter INT1 FromFrontiers in plant science · 2018Article
- Review
- Male functions and malfunctions: the impact of phosphoinositides on pollen development and pollen tube growth.Plant reproduction · 2016Review
- Brevis plant1, a putative inositol polyphosphate 5-phosphatase, is required for internode elongation in maize.Journal of experimental botany · 2016Article
- New insights into root gravitropic signalling.Journal of experimental botany · 2015Review
- A Bird's-Eye View of Molecular Changes in Plant Gravitropism Using Omics Techniques.Frontiers in plant science · 2015Review
- Strategies of seedlings to overcome their sessile nature: auxin in mobility control.Frontiers in plant science · 2015Review
- Phosphatidylinositol 4,5-bisphosphate influences PIN polarization by controlling clathrin-mediated membrane trafficking in Arabidopsis.The Plant cell · 2013Article
- A type III ACC synthase, ACS7, is involved in root gravitropism in Arabidopsis thaliana.Journal of experimental botany · 2013Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The internodal maize pulvinus responds to gravistimulation with differential cell elongation on the lower side. As the site of both graviperception and response, the pulvinus is an ideal system to study how organisms sense changes in orientation. We observed a transient 5-fold increase in inositol 1,4,5-trisphosphate (IP3) within 10 s of gravistimulation in the lower half of the pulvinus, indicating that the positional change was sensed immediately. Over the first 30 min, rapid IP3 fluctuations were observed between the upper and lower halves. Maize plants require a presentation time of between 2 and 4 h before the cells on the lower side of the pulvinus are committed to elongation. After 2 h of gravistimulation, the lower half consistently had higher IP3, and IP3 levels on the lower side continued to increase up to approximately 5-fold over basal levels before visible growth. As bending became visible after 8-10 h, IP3 levels returned to basal values. Additionally, phosphatidylinositol 4-phosphate 5-kinase activity in the lower pulvinus half increased transiently within 10 min of gravistimulation, suggesting that the increased IP3 production was accompanied by an up-regulation of phosphatidylinositol 4, 5-bisphosphate biosynthesis. Neither IP3 levels nor phosphatidylinositol 4-phosphate 5-kinase activity changed in pulvini halves from vertical control plants. Our data indicate the involvement of IP3 and inositol phospholipids in both short- and long-term responses to gravistimulation. As a diffusible second messenger, IP3 provides a mechanism to transmit and amplify the signal from the perceiving to the responding cells in the pulvinus, coordinating a synchronized growth response.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.