Description: sporocyteless (SPL)
Alias: F27G19.11, NOZZLE, NZZ, SPOROCYTELESS, sporocyteless (SPL)
Species: thale cress

Top Publications

  1. Yang W, Ye D, Xu J, Sundaresan V. The SPOROCYTELESS gene of Arabidopsis is required for initiation of sporogenesis and encodes a novel nuclear protein. Genes Dev. 1999;13:2108-17 pubmed
    ..We report here the identification of a mutation, SPOROCYTELESS (SPL), which blocks sporocyte formation in Arabidopsis thaliana...
  2. Ito T, Wellmer F, Yu H, Das P, Ito N, Alves Ferreira M, et al. The homeotic protein AGAMOUS controls microsporogenesis by regulation of SPOROCYTELESS. Nature. 2004;430:356-60 pubmed
    ..that microsporogenesis, the process leading to pollen formation, is induced by AG through activation of the SPOROCYTELESS gene (SPL, also known as NOZZLE,NZZ), a regulator of sporogenesis...
  3. Wei B, Zhang J, Pang C, Yu H, Guo D, Jiang H, et al. The molecular mechanism of sporocyteless/nozzle in controlling Arabidopsis ovule development. Cell Res. 2015;25:121-34 pubmed publisher
    Ovules are essential for plant reproduction and develop into seeds after fertilization. Sporocyteless/nozzle (SPL/NZZ) has been known for more than 15 years as an essential factor for ovule development in Arabidopsis, but the biochemical ..
  4. Li L, Qin G, Tsuge T, Hou X, Ding M, Aoyama T, et al. SPOROCYTELESS modulates YUCCA expression to regulate the development of lateral organs in Arabidopsis. New Phytol. 2008;179:751-64 pubmed publisher
    ..Here, the characterization of a dominant Arabidopsis thaliana mutant spl-D (SPOROCYTELESS dominant), and the roles of SPL in auxin homeostasis and plant development, are reported...
  5. Yu N, Cai W, Wang S, Shan C, Wang L, Chen X. Temporal control of trichome distribution by microRNA156-targeted SPL genes in Arabidopsis thaliana. Plant Cell. 2010;22:2322-35 pubmed publisher
    ..These results demonstrate that the miR156-regulated SPLs establish a direct link between developmental programming and trichome distribution. ..
  6. Matsuda T, Kigawa T, Koshiba S, Inoue M, Aoki M, Yamasaki K, et al. Cell-free synthesis of zinc-binding proteins. J Struct Funct Genomics. 2006;7:93-100 pubmed
    ..NMR analyses confirmed that correctly folded proteins were synthesized by the cell-free method. These results indicate that the cell-free method can be used to synthesize correctly folded and functional zinc-binding proteins. ..
  7. Liu X, Huang J, Parameswaran S, Ito T, Seubert B, Auer M, et al. The SPOROCYTELESS/NOZZLE gene is involved in controlling stamen identity in Arabidopsis. Plant Physiol. 2009;151:1401-11 pubmed publisher
    ..The "floral organ-building" gene SPOROCYTELESS/NOZZLE (SPL/NZZ) plays a central role in regulating anther cell differentiation...
  8. Chen G, Sun J, Liu M, Liu J, Yang W. SPOROCYTELESS is a novel embryophyte-specific transcription repressor that interacts with TPL and TCP proteins in Arabidopsis. J Genet Genomics. 2014;41:617-25 pubmed publisher
    ..In Arabidopsis, the earliest gene controlling this process is SPOROCYTELESS (SPL)...
  9. Bencivenga S, Simonini S, Benkova E, Colombo L. The transcription factors BEL1 and SPL are required for cytokinin and auxin signaling during ovule development in Arabidopsis. Plant Cell. 2012;24:2886-97 pubmed publisher
    ..In sporocyteless/nozzle (spl/nzz) mutants, which show a similar phenotype to the cre1-12 ahk2-2 ahk3-3 triple mutant, PIN1 ..

More Information


  1. Sieber P, Petrascheck M, Barberis A, Schneitz K. Organ polarity in Arabidopsis. NOZZLE physically interacts with members of the YABBY family. Plant Physiol. 2004;135:2172-85 pubmed
    ..b>NOZZLE (NZZ) encodes a plant-specific nuclear protein...
  2. Zhao F, Zheng Y, Zeng T, Sun R, Yang J, Li Y, et al. Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required for Anther Development. Plant Physiol. 2017;173:2265-2277 pubmed publisher
    ..i>SPOROCYTELESS/NOZZLE was previously identified as an essential regulator of diploid germ cell (archesporial cell) ..