Corrigendum

Wang, Junzhe; Guo, Xiaolong; Xiao, Qiang; Zhu, Jiangjiang; Cheung, Alice Y.; Li, Yuan; Vierling, Elizabeth; Xu, Shengbao

doi:10.1111/nph.17597

Cited by 2 publications

(2 citation statements)

References 1 publication

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spatial and temporal distribution of auxin in ovules is under the tight control of PIN1 (Luca et al, 2013;Panoli et al, 2015). Long-term exposure to NPA or BFA treatment disrupts FG development, a phenotype that has been reported to occur in pin1 mutants (Wang et al, 2021). In line with previous findings (Luca et al, 2013;Panoli et al, 2015), observation of the R2D2 auxin marker in Arabidopsis ovules confirmed that DII expression in FG is higher than that in the sporophyte (Figure 6), which implies that the auxin content in Arabidopsis FG is relatively low.…”

Section: Discussionsupporting

confidence: 88%

Tonoplast proton pumps regulate nuclear spacing of female gametophytes via mediating polar auxin transport in Arabidopsis

Jiang

Zheng

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

The vacuole is an important organelle with multiple functions in plants, and the tonoplast that wraps the vacuole also plays essential roles in intracellular trafficking and ion homeostasis. Previous studies found that tonoplast proton pumps regulate embryo development and morphogenesis through their effects on vacuole biogenesis and distribution, as well as polar auxin transport and concomitant auxin gradient. However, the precise roles of the tonoplast proton pumps in gametophyte development remain unclear. Here we demonstrated that the lack of two types of tonoplast proton pumps or the absence of V-ATPase alone leads to abnormal development and nuclear localization of female gametophyte (FG), and slowed endosperm nuclei division after fertilization of the central cell. We further revealed that V-ATPase regulates auxin levels in ovules through coordinating the content and localization of PIN-FORMED 1 (PIN1) protein, hence influencing nuclear spacing between centra cell and egg cell, and subsequent endosperm development. Collectively, our findings revealed a crucial role of V-ATPase in auxin-mediated FG development in Arabidopsis and expanded our understanding of the functions of tonoplast proton pumps in seed plants reproductive development.

show abstract

Section: Discussionsupporting

confidence: 88%

Tonoplast proton pumps regulate nuclear spacing of female gametophytes via mediating polar auxin transport in Arabidopsis

Jiang

Zheng

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…The function of AtPIN8 is the opposite of that of AtPIN5, transporting auxin from the ER to the cytoplasm (Ding et al, 2012). In addition, there is functional redundancy for some PIN proteins (Blilou et al, 2005;Wang et al, 2021). For example, the mutant genes pin1 and pin2 exhibit functional redundancy regarding the regulation of root meristem and root length (Vieten et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Expression analysis of PIN family genes in Chinese hickory reveals their potential roles during grafting and salt stress

Yang

Mei²,

Chen³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Grafting is an effective way to improve Chinese hickory while salt stress has caused great damage to the Chinese hickory industry. Grafting and salt stress have been regarded as the main abiotic stress types for Chinese hickory. However, how Chinese hickory responds to grafting and salt stress is less studied. Auxin has been proved to play an essential role in the stress response through its re-distribution regulation mediated by polar auxin transporters, including PIN-formed (PIN) proteins. In this study, the PIN gene family in Chinese hickory (CcPINs) was identified and structurally characterized for the first time. The expression profiles of the genes in response to grafting and salt stress were determined. A total of 11 CcPINs with the open reading frames (ORFs) of 1,026–1,983 bp were identified. Transient transformation in tobacco leaves demonstrated that CcPIN1a, CcPIN3, and CcPIN4 were localized in the plasma membrane. There were varying phylogenetic relationships between CcPINs and homologous genes in different species, but the closest relationships were with those in Carya illinoinensis and Juglans regia. Conserved N- and C-terminal transmembrane regions as well as sites controlling the functions of CcPINs were detected in CcPINs. Five types of cis-acting elements, including hormone- and stress-responsive elements, were detected on the promoters of CcPINs. CcPINs exhibited different expression profiles in different tissues, indicating their varied roles during growth and development. The 11 CcPINs responded differently to grafting and salt stress treatment. CcPIN1a might be involved in the regulation of the grafting process, while CcPIN1a and CcPIN8a were related to the regulation of salt stress in Chinese hickory. Our results will lay the foundation for understanding the potential regulatory functions of CcPIN genes during grafting and under salt stress treatment in Chinese hickory.

show abstract

Corrigendum

Cited by 2 publications

References 1 publication

Tonoplast proton pumps regulate nuclear spacing of female gametophytes via mediating polar auxin transport in Arabidopsis

Tonoplast proton pumps regulate nuclear spacing of female gametophytes via mediating polar auxin transport in Arabidopsis

Expression analysis of PIN family genes in Chinese hickory reveals their potential roles during grafting and salt stress

Contact Info

Product

Resources

About