TY - JOUR
T1 - Sulfur deficiency increases phosphate accumulation, uptake, and transport in arabidopsis thaliana
AU - Allahham, Alaa
AU - Kanno, Satomi
AU - Zhang, Liu
AU - Maruyama-Nakashita, Akiko
N1 - Funding Information:
This work was supported by Grant-in-Aid for JSPS Fellow JP17J40113 (for S.K.) and JSPS KAKENHI Grant Number JP24380040, JP17H03785, JP19H02859, and 20H05511 (for A.M.-N.). The authors would like to thank the ABRC and Javier Paz-Ares for providing the mutants seeds used in this study. We also acknowledge the technical support provided by Yukiko Okuo and Chisato Yamaguchi.
Funding Information:
Funding: This work was supported by Grant-in-Aid for JSPS Fellow JP17J40113 (for S.K.) and JSPS KAKENHI Grant Number JP24380040, JP17H03785, JP19H02859, and 20H05511 (for A.M.-N.).
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/4/2
Y1 - 2020/4/2
N2 - Recent studies have shown various metabolic and transcriptomic interactions between sulfur (S) and phosphorus (P) in plants. However, most studies have focused on the effects of phosphate (Pi) availability and P signaling pathways on S homeostasis, whereas the effects of S availability on P homeostasis remain largely unknown. In this study, we investigated the interactions between S and P from the perspective of S availability. We investigated the effects of S availability on Pi uptake, transport, and accumulation in Arabidopsis thaliana grown under sulfur sufficiency (+S) and deficiency (−S). Total P in shoots was significantly increased under −S owing to higher Pi accumulation. This accumulation was facilitated by increased Pi uptake under −S. In addition, −S increased root-to-shoot Pi transport, which was indicated by the increased Pi levels in xylem sap under −S. The −S-increased Pi level in the xylem sap was diminished in the disruption lines of PHT1;9 and PHO1, which are involved in root-to-shoot Pi transport. Our findings indicate a new aspect of the interaction between S and P by listing the increased Pi accumulation as part of −S responses and by highlighting the effects of −S on Pi uptake, transport, and homeostasis.
AB - Recent studies have shown various metabolic and transcriptomic interactions between sulfur (S) and phosphorus (P) in plants. However, most studies have focused on the effects of phosphate (Pi) availability and P signaling pathways on S homeostasis, whereas the effects of S availability on P homeostasis remain largely unknown. In this study, we investigated the interactions between S and P from the perspective of S availability. We investigated the effects of S availability on Pi uptake, transport, and accumulation in Arabidopsis thaliana grown under sulfur sufficiency (+S) and deficiency (−S). Total P in shoots was significantly increased under −S owing to higher Pi accumulation. This accumulation was facilitated by increased Pi uptake under −S. In addition, −S increased root-to-shoot Pi transport, which was indicated by the increased Pi levels in xylem sap under −S. The −S-increased Pi level in the xylem sap was diminished in the disruption lines of PHT1;9 and PHO1, which are involved in root-to-shoot Pi transport. Our findings indicate a new aspect of the interaction between S and P by listing the increased Pi accumulation as part of −S responses and by highlighting the effects of −S on Pi uptake, transport, and homeostasis.
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U2 - 10.3390/ijms21082971
DO - 10.3390/ijms21082971
M3 - Article
C2 - 32340187
AN - SCOPUS:85083859418
SN - 1661-6596
VL - 21
JO - International journal of molecular sciences
JF - International journal of molecular sciences
IS - 8
M1 - 2971
ER -