ArticleTransgenic research2005
Hahb-4, a sunflower homeobox-leucine zipper gene, is a developmental regulator and confers drought tolerance to Arabidopsis thaliana plants.
Article in Transgenic research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
70 citing papers in PubMed, 159 citations in OpenAlex.
- Genome-wide identification and transcription profiling of safflower (Carthamus tinctorius L.) HD-ZIP gene family under water deficit.BMC genomics · 2025Article
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- Challenges of translating Arabidopsis insights into crops.The Plant cell · 2025Review
- Latin America: a hub for agrobiotechnological innovations.Annals of botany · 2025Review
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- Evolution of HD-ZIP transcription factors and their function in cabbage leafy head formation.Frontiers in plant science · 2025Article
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- Evolutionary Consequences of Functional and Regulatory Divergence of HD-Zip I Transcription Factors as a Source of Diversity in Protein Interaction Networks in Plants.Journal of molecular evolution · 2023Review
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- Genome-Wide Analysis ofInternational journal of molecular sciences · 2023Article
- Promoter variations in a homeobox gene, BrLMI1, contribute to leaf lobe formation in Brassica rapa ssp. chinensis Makino.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Protective effects of chitosan based salicylic acid nanocomposite (CS-SA NCs) in grape (Vitis vinifera cv. 'Sultana') under salinity stress.Scientific reports · 2023Article
- A tomato HD-zip I transcription factor, VAHOX1, acts as a negative regulator of fruit ripening.Horticulture research · 2023Article
- Drought tolerant wheat IND-ØØ412-7 is nutritionally equivalent to its Non-Transgenic Comparator.GM crops & food · 2022Article
- Applications of Molecular Markers for Developing Abiotic-Stress-Resilient Oilseed Crops.Life (Basel, Switzerland) · 2022Review
- Genome-Wide Characterization and Expression Profiling of HD-Zip Genes in ABA-Mediated Processes inPlants (Basel, Switzerland) · 2022Article
- Genetically modified organisms: adapting regulatory frameworks for evolving genome editing technologies.Biological research · 2022Review
- Soil-based nano-graphene oxide and foliar selenium and nano-Fe influence physiological responses of 'Sultana' grape under salinity.Scientific reports · 2022Article
- Genome-wide identification of HD-ZIP transcription factors in maize and their regulatory roles in promoting drought tolerance.Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Article
10 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Homeodomain-leucine zipper proteins constitute a family of transcription factors found only in plants. Hahb-4 is a member of Helianthus annuus (sunflower) subfamily I. It is regulated at the transcriptional level by water availability and abscisic acid. In order to establish if this gene plays a functional role in drought responses, transgenic Arabidopsis thaliana plants that overexpress Hahb-4 under the control of the 35S Cauliflower Mosaic Virus promoter were obtained. Transformed plants show a specific phenotype: they develop shorter stems and internodes, rounder leaves and more compact inflorescences than their non-transformed counterparts. Shorter stems and internodes are due to a lower rate in cell elongation rather than to a stop in cell division. Transgenic plants were more tolerant to water stress conditions, showing improved development, a healthier appearance and higher survival rates than wild-type plants. Indeed, either under normal or drought conditions, they produce approximately the same seed weight per plant as wild-type plants under normal growth conditions. Plants transformed with a construct that bears the Hahb-4 promoter fused to gusA show reporter gene expression in defined cell-types and developmental stages and are induced by drought and abscisic acid. Since Hahb-4 is a transcription factor, we propose that it may participate in the regulation of the expression of genes involved in developmental responses of plants to desiccation.
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