Plant nutrient uptake and metabolism
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Abstract
Abstract
Phosphorus (P) is an essential macronutrient for plant growth and development. The absorption and transport of phosphate in plants rely on phosphate transporter-encoded proteins, named PHT1 transporters. Flowering Chinese cabbage is an important vegetable crop, while the molecular mechanisms underlying PHT1-mediated phosphate adaptation to low-phosphate stress remain poorly understood in this species. In this study, we identified 13 PHT1 transporter proteins in flowering Chinese cabbage, BcPHT1;9 was predominantly expressed in the roots and localized to the plasma membrane. Overexpression of BcPHT1;9 significantly increased total root length, surface area, and phosphorus content under low-phosphate stress, whereas silencing suppressed these traits. BcPHT1;9 thus coordinately regulates Pi uptake, phosphate homeostasis, and root architectural adaptation to sustain balanced phosphorus nutrition under phosphate-deficient conditions. BcPHT1;9 positively enhances low-Pi tolerance by coordinating phosphate uptake and root architecture in flowering Chinese cabbage.
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@article{Yang2026BcPHT1,
title = {BcPHT1;9 mediates phosphate uptake and modulates root architecture in flowering Chinese cabbage},
author = {Wenjie Yang and Yanxu Xue and Ali Anwar and Caizhu Hu and Mengge Zhang and Chunfeng Chen and Jinmiao Wang and Shiwei Song},
journal = {BMC Plant Biology},
year = {2026},
doi = {10.1186/s12870-026-09655-8},
url = {https://doi.org/10.1186/s12870-026-09655-8}
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