The smooth bark and lime green branches add an interesting dimension to the landscape.īurkwood's Broom is an open multi-stemmed deciduous shrub with a shapely form and gracefully arching branches.
The small oval leaves do not develop any appreciable fall color. All rights reserved.A high quality flowering shrub for difficult places with dry, infertile soil, excellent for use in massing springtime crimson flowers with lighter red keels and yellow edges on a densely branched, twiggy mound best used in specific landscape situationsīurkwood's Broom is blanketed in stunning crimson pea-like flowers with lavender overtones and yellow edges along the branches from mid to late spring, which emerge from distinctive dark red flower buds. These results imply that IbbHLH116 can perform the function of the ICE1 gene in conferring cold tolerance in sweet potato.Īrabidopsis transformation Chilling Evolution Ipomoea batatas Reactive oxygen species bHLH transcription factor.Ĭopyright © 2022 Elsevier B.V. Overexpression of IbbHLH116 in the sweet potato callus also induced the expression of CBF3 under low temperature. thaliana fully rescued the cold-sensitive phenotype by promoting the expression of C-repeat binding factors 3 (CBF3). Moreover, overexpression of IbbHLH116 in ice1 mutant A. thaliana significantly enhanced cold tolerance in transgenic plants by regulating activities of oxidative protective enzymes, such as peroxidase (POD), superoxide dismutase (SOD), and the contents of malondialdehyde (MDA), proline and soluble proteins. Overexpression of IbbHLH116 in the wild type (Col-0) A. The transcripts of IbbHLH116 were highly accumulated in cold-tolerant genotype FS18, particularly in new leaves and stems, compared to the cold-sensitive genotype NC1 under cold stress. Subcellular localization analysis showed that IbbHLH116 is localized in the nucleus. However, the IbbHLH116 protein from cold-tolerant variety FS18 showed a 37.90% of sequence homology with AtICE1 protein. The basic helix-loop-helix protein 116 (IbbHLH116) has the closest phylogeny to the AtICE1 protein of A. We further systematically evaluated the gene structure, promoter analysis, synteny analysis, and expression pattern of 28 bHLH gene family members in sweet potato.
We found that the number of bHLH gene family members was significantly lower than that of cold-tolerant species. Here, the evolutionary analysis of 22 cold-responsive genes in 35 plant species revealed that the identified MYC-type basic helix-loop-helix (bHLH) transcription factors exhibit diverse structures. Electronic address: potato (Ipomoea batatas L.) originated from South America therefore, it is vulnerable to low temperature.
5 Research Center of Crop Stresses Resistance Technologies/ Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434025, China.Electronic address: 1 Research Center of Crop Stresses Resistance Technologies/ Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434025, China. 4 Hubei Sweet potato Engineering and Technology Research Centre, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.3 Research Center of Crop Stresses Resistance Technologies/ Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434025, China Hubei Sweet potato Engineering and Technology Research Centre, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.2 Agronomy Department, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.1 Research Center of Crop Stresses Resistance Technologies/ Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434025, China.
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