Trihelix transcription factors GTL1 and DF1 prevent aberrant root hair formation in an excess nutrient condition.
Trihelix transcription factors GTL1 and DF1 prevent aberrant root hair formation in an excess nutrient condition.
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DOI：
10.1111/nph.18255
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发表时间：
2022-08
期刊：
影响因子：
9.4
通讯作者：
Sugimoto, Keiko
中科院分区：
文献类型：
--
作者：
Shibata, Michitaro;Favero, David S.;Takebayashi, Ryu;Takebayashi, Arika;Kawamura, Ayako;Rymen, Bart;Hosokawa, Yoichiroh;Sugimoto, Keiko
Root hair growth is tuned in response to the environment surrounding plants. While most previous studies focused on the enhancement of root hair growth during nutrient starvation, few studies investigated the root hair response in the presence of excess nutrients. We report that the post‐embryonic growth of wild‐type Arabidopsis plants is strongly suppressed with increasing nutrient availability, particularly in the case of root hair growth. We further used gene expression profiling to analyze how excess nutrient availability affects root hair growth, and found that RHD6 subfamily genes, which are positive regulators of root hair growth, are downregulated in this condition. However, defects in GTL1 and DF1, which are negative regulators of root hair growth, cause frail and swollen root hairs to form when excess nutrients are supplied. Additionally, we observed that the RHD6 subfamily genes are mis‐expressed in gtl1‐1 df1‐1. Furthermore, overexpression of RSL4, an RHD6 subfamily gene, induces swollen root hairs in the face of a nutrient overload, while mutation of RSL4 in gtl1‐1 df1‐1 restore root hair swelling phenotype. In conclusion, our data suggest that GTL1 and DF1 prevent unnecessary root hair formation by repressing RSL4 under excess nutrient conditions.
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影响因子：
3.3
作者：
Bloch, D;Lavy, M;Yalovsky, S
通讯作者：
Yalovsky, S
影响因子：
16.6
作者：
Bhosale R;Giri J;Pandey BK;Giehl RFH;Hartmann A;Traini R;Truskina J;Leftley N;Hanlon M;Swarup K;Rashed A;Voß U;Alonso J;Stepanova A;Yun J;Ljung K;Brown KM;Lynch JP;Dolan L;Vernoux T;Bishopp A;Wells D;von Wirén N;Bennett MJ;Swarup R
通讯作者：
Swarup R
影响因子：
4.5
作者：
Bruex A;Kainkaryam RM;Wieckowski Y;Kang YH;Bernhardt C;Xia Y;Zheng X;Wang JY;Lee MM;Benfey P;Woolf PJ;Schiefelbein J
通讯作者：
Schiefelbein J
影响因子：
3
作者：
Bates, TR;Lynch, JP
通讯作者：
Lynch, JP
影响因子：
11.6
作者：
Han, Guoliang;Wei, Xiaocen;Wang, Baoshan
通讯作者：
Wang, Baoshan