東京大学 · 農学・生物学
Chunlan Lian教授の研究室は、植物と菌類の相互作用、特にエクトミクラジアル菌根菌(EMF)とその環境適応機能に注目した研究を展開しています。特に、ジャガイモやマツ、ケヤキなどの樹木に共生する菌根菌(例:Cenococcum geophilum)が、重金属汚染地帯や乾燥環境における植物の生存・成長に果たす役割を分子・生態学的アプローチで解明しています。また、フラボノイド代謝の制御に関与するBBX転写因子の機能や、倒木を再生の基盤とする樹木の遺伝的構造解析にも取り組んでいます。
Figures are computed from collected data and may differ slightly.
Flavonoids, which modulate plant resistance to various stresses, can be induced by high light. B-box (BBX) transcription factors (TFs) play crucial roles in the transcriptional regulation of flavonoids biosynthesis, but limited information is available on the association of BBX proteins with high light. We present a detailed overview of 45 Populus trichocarpa BBX TFs. Phylogenetic relationships, gene structure, tissue-specific expression patterns and expression profiles were determined under 10
To advance our understanding of the effects of inoculation with ectomycorrhizal fungi (EMF) on seedling colonization in mine wastelands, we conducted a field experiment in a copper tailing. Six-month-old seedlings of Japanese red pine (Pinus densiflora) and oak (Quercus variabilis) separately inoculated with three EMF species (Pisolithus sp., Cenococcum geophilum, Laccaria laccata) were transplanted to the copper tailing. The survival rates of tree seedlings were monitored monthly, and growth (b
Fallen logs are the main regeneration sites for Abies sachalinensis (Sachalin fir) in subboreal forests in Japan. We surveyed the spatial genetic structure of different demographic stages in a 4.29-ha natural population of A. sachalinensis. Genetic structure was significant at short distances throughout all stages in this wind-dispersed conifer. To evaluate the effects of fallen-log-dependent recruitment on demography and spatial genetic structure, we conducted parentage analysis of offspring wi
<i>Cenococcum geophilum</i> (<i>C. geophilum</i>) is a widely distributed ectomycorrhizal fungus that plays a crucial role in forest ecosystems worldwide. However, the specific ecological factors influencing its global distribution and how climate change will affect its range are still relatively unknown. In this study, we used the MaxEnt model optimized with the kuenm package to simulate changes in the distribution pattern of <i>C. geophilum</i> from the Last Glacial Maximum to the future based
MYB transcription factors have a wide range of functions in plant growth, hormone signaling, salt, and drought tolerances. In this study, two homologous transcription factors, <i>PtrMYB55</i> and <i>PtrMYB121,</i> were isolated and their functions were elucidated. Tissue expression analysis revealed that <i>PtrMYB55</i> and <i>PtrMYB121</i> had a similar expression pattern, which had the highest expression in stems. Their expression continuously increased with the growth of poplar, and the expre
The impact of drought stress on plant growth in arid regions is a critical concern, necessitating the exploration of strategies to enhance plant drought resistance, particularly during the early stages of drought stress. This study focuses on the ectomycorrhizal fungus <i>Cenococcum geophilum</i>, renowned for its extensive genetic diversity and broad host compatibility, making it a crucial ally for host plants facing external stresses. We utilized <i>Pinus massoniana</i> seedlings inoculated wi
The impact of drought stress on plant growth in arid regions is a critical concern, necessitating the exploration of strategies to enhance plant drought resistance, particularly during the early stages of drought stress. This study focuses on the ectomycorrhizal fungus Cenococcum geophilum, renowned for its extensive genetic diversity and broad host compatibility, making it a crucial ally for host plants facing external stresses. We utilized approximately 5-month-old Pinus massoniana seedlings i
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