Pseudomonas fluorescens and L-tryptophan application triggered the phytoremediation potential of sunflower (Heliantus annuus L.) in lead-contaminated soil - Muhammad Tauseef Jaffar; Zain Mushtaq; Abdul Waheed; Hafiz Naeem Asghar; Jianguo Zhang; Jiale Han (Environmental Science and Pollution Research, 2023)