Publications by authors named "Kuang-Ji Zhao"

The phenomenon of cross adaptation refers to the ability of plants to improve their resistance to other stress after experiencing one type of stress. However, there are limited reports on how ultraviolet radiation B (UVB) pretreatment affects the enrichment, transport, and tolerance of cadmium (Cd) in plants. Since an appropriate UVB pretreatment has been reported to change plant tolerance to stress, we hypothesized that this application could alter plant uptake and tolerance to heavy metals.

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  • Cadmium is harmful to human health and the environment, and the cation/H exchanger (CAX) family helps plants manage cadmium uptake and response.
  • A study identified seven CAX genes in the Populus trichocarpa genome that are related to stress response, particularly under cadmium stress, drought, and other environmental challenges.
  • The research suggests that understanding the CAX family can aid in developing strategies for using Populus in cleaning up heavy metal pollution.
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  • A study was conducted to explore the polyphenol oxidase (PPO) gene family in Populus trichocarpa, identifying 18 PtrPPO genes crucial for the tree's resistance to environmental stressors like drought and pest damage.
  • The analysis involved bioinformatics and qRT-PCR to investigate gene structure, categorization into 11 groups, and the protein-coding potential, revealing that most PtrPPO genes lack introns and are distributed across 19 chromosomes.
  • Key findings indicated that certain PtrPPO genes are primarily expressed in young plant tissues and can be induced by stress-related substances, suggesting they play an important role in the plant's adaptive responses to environmental challenges.
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Phytoremediation technology can help achieve moderate cost and considerable effect with respect to the remediation of heavy metal (HM) pollution in soil and water. Many previous studies have suggested the role of nitrogen (N) in the alleviation of effects of HM on plants. Herein, we sought to determine the molecular mechanisms by which additional N supplementation mitigates cadmium (Cd) toxicity in poplars using a combination of physiological, transcriptomic and phosphoproteomic analyses.

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  • Poplar trees are widely used in reforestation, but their growth is influenced by environmental conditions and their ability to withstand various stresses.
  • The study focuses on analyzing the whole genome of poplar to identify genes related to drought, mechanical damage, insect feeding, and hormone responses, discovering four specific genes in the process.
  • Bioinformatics and qRT-PCR methods were utilized to examine gene structure and expression patterns, revealing certain genes’ potential roles in stress response, which could aid future research on enhancing stress resistance in forest trees.
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