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\begin{document}

\title{ANAC044 modulates P reutilization in P deficient Arabidopsis thaliana
root cell wall in an ethylene dependent manner}



\author[1]{Qi Wu}%
\author[1]{ye Tao}%
\author[1]{xiaolong Zhang}%
\author[1]{Xiao Fang Zhu}%
\author[1]{Ren Fang Shen}%
\affil[1]{State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences}%


\vspace{-1em}



  
  \date{May 08, 2024}


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\begin{abstract}
Phosphorus (P) deficiency is a major problem in agriculture, thus
identifying factors affecting plant's ability to reutilize previously
assimilated P is a prerequisite for improving the P homeostasis in crops
grown with P deficient soil. Here, we report the involvement of a~NAC
(No apical meristem {[}NAM{]}, Arabidopsis transcription activation
factor {[}ATAF{]} and Cup-shaped cotyledon {[}CUC{]}) transcription
factor in P deficiency resistance in Arabidopsis. Compared to the wild
type (WT, Col-0) plants, the anac044 mutant displayed P deficiency
resistant phenotype, together with the increasing root length, root and
shoot biomass under P deficiency. ANAC044 was frequently expressed,
including roots and shoots. Upon P deficient treatment even within 1 d,
ANAC044 transcript accumulation was strongly up-regulated. Further
analysis revealed that, under P-deficient condition, the cell wall,
particularly the pectin of anac044, released more P than that of WT,
accompanied by an increment of ethylene production, as a result, more
soluble P was available in anac044 root and shoot. Thus, the study here
uncovers the role of ANAC044 in maintenance of P homeostasis through
ethylene signaling.%
\end{abstract}%



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