ArticleThe Plant cell2022
ENB1 encodes a cellulose synthase 5 that directs synthesis of cell wall ingrowths in maize basal endosperm transfer cells.
Article in The Plant cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 25 citations in OpenAlex.
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Phosphoglycerate dehydrogenase is required for kernel development and defines a predominant serine synthesis pathway in maize.The Plant cell · 2025Article
- Dissecting the genetic architecture of yield-related traits by QTL mapping in maize.Frontiers in plant science · 2025Article
- Maize unstable factor for orange1 encodes a nuclear protein that affects redox accumulation during kernel development.The Plant cell · 2024Article
- ZmICE1a regulates the defence-storage trade-off in maize endosperm.Nature plants · 2024Article
- Decoding the gene regulatory network of endosperm differentiation in maize.Nature communications · 2024Article
- Molecular mechanisms of heterosis under drought stress in maize hybrids Zhengdan7137 and Zhengdan7153.Frontiers in plant science · 2024Article
- Defective kernel 66 encodes a GTPase essential for kernel development in maize.Journal of experimental botany · 2023Article
- ZmDRR206 Regulates Nutrient Accumulation in Endosperm through Its Role in Cell Wall Biogenesis during Maize Kernel Development.International journal of molecular sciences · 2023Article
- Characterization and Transcriptome Analysis of Maize Small-Kernel MutantPlants (Basel, Switzerland) · 2023Article
- A Systemic Investigation of Genetic Architecture and Gene Resources Controlling Kernel Size-Related Traits in Maize.International journal of molecular sciences · 2023Article
- Article
- Genome-wide identification and functional analysis ofFrontiers in plant science · 2022Article
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7 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Development of the endosperm is strikingly different in monocots and dicots: it often manifests as a persistent tissue in the former and transient tissue in the latter. Little is known about the controlling mechanisms responsible for these different outcomes. Here we characterized a maize (Zea mays) mutant, endosperm breakdown1 (enb1), in which the typically persistent endosperm (PE) was drastically degraded during kernel development. ENB1 encodes a cellulose synthase 5 that is predominantly expressed in the basal endosperm transfer layer (BETL) of endosperm cells. Loss of ENB1 function caused a drastic reduction in formation of flange cell wall ingrowths (ingrowths) in BETL cells. Defective ingrowths impair nutrient uptake, leading to premature utilization of endosperm starch to nourish the embryo. Similarly, developing wild-type kernels cultured in vitro with a low level of sucrose manifested early endosperm breakdown. ENB1 expression is induced by sucrose via the BETL-specific Myb-Related Protein1 transcription factor. Overexpression of ENB1 enhanced development of flange ingrowths, facilitating sucrose transport into BETL cells and increasing kernel weight. The results demonstrated that ENB1 enhances sucrose supply to the endosperm and contributes to a PE in the kernel.
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