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Key Laboratory of Economic Plants and Biotechnology
Dietrich Schmidt vogt's Group
GONG Xun's Group
HU Hong's Group
HUANG Junchao's Group
LI Airong's Group
WANG Yuehu's Group
WU Jianqiang's Group
WU Jianqiang's DGD
XU Jianchu's Group
LIU Aizhong's Group
LIU Li's Group
Location: Home > Key Laboratory of Economic Plants and Biotechnology > LIU Li's Group > Major Research Achievements
Major Research

1. Plant drought and salt resistance mechanisms.

Physcomitrella patens is a model moss plant for molecular biology research with completed genomic information, which shows that Physcomitrella patens posesses the common physiological and developmental pathways with flowering plants, such as ABA, auxin and cytokinin signaling regulation. The transformation strategy is maturely developed by homologous recombination with high efficiency, and socalled “green yeast”. Using training stress strategy to mimic plant evolution process, we are analyzing the epigenetic response and transcriptional response and trying to find the mechanisms of plant stress regulation and adaption.

2. The role of Chloroplasts in stress resistance.

Chloroplasts are endosymbiotically derived organelles in green plants that carry out photosynthesis through which most of the planet’s reduced carbon and atmospheric O2 are produced. However, chloroplasts also show very early response to abiotic stress. Previous evidence showed that the developing chloroplast also signals to the nucleus its metabolic and developmental status (retrograde regulation). The questions appear then what are the mechanisms for Retrograde feedback coordinated gene expression in both compartments to ensure that appropriate levels of protein complexes are present during chloroplast differentiation and function. We use transcriptomics, proteomics and metabolomics to identify critical chloroplast factors and study the function of chloroplasts in stress response.

3. Plant stress resistant improvement by genetic engineering.

Intensive cultivation of crops has severe consequences on the environment. Plant stress, especially drought is the major reason causing yield loss. Based on the result in the previous research, we exploited spatial specially expressed promoters to drive the stress associated genes in transgenic rice. Our aim is to develop screen high yield crop with high resistance to stress.

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