＜正＞Cassava starch has wide-range of bioindustrial applications because of its unique property such as low leve...
Shanshan Zhao, Peng Zhang* SIBS-ETH Shanghai Center for Cassava Biotechnology, National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
＜正＞Cassava storage root is a major sink for photosynthetic carbon assimilation. Its formation involves changes...
Jun Yang, Dong An, Peng Zhang* SIBS-ETH Shanghai Center for Cassava Biotechnology, National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
Cassava （Manihot esculenta Crantz） sheds its leaves during growth, especially within the tropical dry season. With the production of SAG12-1PT transgenic cassava we want to test the level of leaf retention and altered cytokinin metabolism of transgenic plants via the autoregulatory senescence inhibition system. After confirmation of transgene expression by molecular analysis and phenotype examination in greenhouse plants, two transgenic plant lines, 529-28 and 529-48, were chosen for further investigation. Detached mature leaves of 529-28 plants retained high levels of chlorophyll compared with wild-type leaves after dark-induced senescence treatment. Line 529-28 showed significant drought tolerance as indicated by stay-green capacity after drought stress treatment. Field experiments proved that leaf senescence syndrome was significantly delayed in 529-28 plants in comparison with wild-type and 529-48 plants. Physiological and agronomical characterizations of these plants also revealed that the induced expression of IPT had effects on photosynthesis, sugar allocation and nitrogen partitioning. Importantly, the 529-28 plants accumulated a high level of trans-zeatin-type cytokinins particularly of corresponding storage O-glucosides to maintain cytokinin homeostasis. Our study proves the feasibility of prolonging the leaf life of woody cassava and also sheds light on the control of cytokinin homeostasis in cassava leaves.
Cassava is one of the most important tropical crops adapted to a wide range of environments,such as drought an...
Dong An and Peng Zhang~* Shanghai Center for Cassava Biotechnology,National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,300 Fenglin Road,200032,Shanghai,China.
＜正＞Study on in vitro cultures of ten cassava cultivars （KU50、TME7、Ebwanateraka、NZ188、NZ199、SC5、SC6、SC8、SC124 a...
Jia Liu, Shanshan Zhao, Qiuxiang Ma and Peng Zhang* SIBS-ETH Shanghai Center for Cassava Biotechnology, National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
Cassava(Manihot esculenta Crantz) and sweetpotato(Ipomoea batatas) accumulate a lot of starch in their storage...
Jun Yang,Shanshan Zhao,Dong An,Huiping Bi,Jia Xu,Qiuxiang Ma,Min Zhang, Jia Liu,Peng Zhang~* Institute of Plant Physiology & Ecology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai 200032,China
＜正＞DREB1/C-repeat binding factor （CBF） is a plant-specific family of transcription factors that play a crucial...
Dong An, Peng Zhang* SIBS-ETH Shanghai Center for Cassava Biotechnology, National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
＜正＞Efficient Agrobacterium tumefaciens-mediated transformation was developed using embryogenic suspension cult...
Jun Yang, Huiping Bi, Weijuan Fan, Min Zhang and Peng Zhang* SIBS-ETH Shanghai Center for Cassava Biotechnology, National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
