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Yanying Zhao
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Volume 39 Issue 1 March 2014 pp 127-137 Articles
Xiaojie Li Liping Han Yanying Zhao Zhenzhen You Chunling Zhang Zhenzhen You Hansong Dong Chunling Zhang
Hpa1 is a harpin protein produced by
Xanthomonas oryzae , an important bacterial pathogen of rice, and has the growth-promoting activity in plants. To understand the molecular basis for the function of Hpa1, we generated an inactive variant protein, Hpa1𝛥NT, by deleting the nitroxyl-terminal region of the Hpa1 sequence and compared Hpa1𝛥NT with the full-length protein in terms of the effects on vegetative growth and related physiological responses inArabidopsis . When Hpa1 was applied to plants, it acted to enhance the vegetative growth but did not affect the floral development. Enhanced plant growth was accompanied by induced expression of growth-promoting genes in plant leaves. The growth-promoting activity of Hpa1 was further correlated with a physiological consequence shown as promoted leaf photosynthesis as a result of facilitated CO2 conduction through leaf stomata and mesophyll cells. On the contrary, plant growth, growth-promoting gene expression, and the physiological consequence changed little in response to the Hpa1𝛥NT treatment. These analyses suggest that Hpa1 requires the nitroxyl-terminus to facilitate CO2 transport inside leaf cells and promote leaf photosynthesis and vegetative growth of the plant.
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Journal of Biosciences
Volume 48, 2023
All articles
Continuous Article Publishing mode
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Journal of Biosciences | News
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To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".
Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.
Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.
Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx
Posted on April 12, 2023< -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
Forthcoming Special issue.
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