Cell Biology and Development最新文献

{"title":"Growth and ursolic acid content of pearl grass (Hedyotis corymbosa) on variations in water availability","authors":"K. Anam, Widya Mudyantini, R. Rakhmawati","doi":"10.13057/cellbioldev/v010204","DOIUrl":"https://doi.org/10.13057/cellbioldev/v010204","url":null,"abstract":"Abstract. Anam K, Mudyantini, Rakhmawati R. 2017. Growth and ursolic acid content of pearl grass (Hedyotis corymbosa) on variations in water availability. Cell Biol Dev 1: 55-62. The purpose of this study is to determine how different water sources affect the growth and levels of ursolic acid in pearl grass (Hedyotis corymbosa (L.) Lam.). A factorial, completely randomized design (CRD) with a single factor of five replications each was used for the experiment. Water stress conditions were created by providing different levels of water availability in the growing media, namely 40, 60, 80, and 100% field capacity (control). The plants were given the treatment for 8 weeks. Plant growth, including the number of leaves, fresh and dry weight, and plant ursolic acid content, were all measured in this study. The data were analyzed using analysis of variance (ANOVA), and the DMRT test at the 5% test level was used to determine the significant difference between treatments. The results showed that the water availability treatment significantly affected the number of leaves, fresh weight, and dry weight, but it did not affect the ursolic acid content in plants. The treatment with the lowest water availability (40% KL) produced low yields on growth parameters and ursolic acid levels. Ursolic acid levels were lowest under drought stress conditions (40% KL), while they were highest under excess water conditions (100% KL).","PeriodicalId":145551,"journal":{"name":"Cell Biology and Development","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128482237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Allelopathic effects of mesquite (Prosopis juliflora) aqueous extracts on seeds germination and seedlings growth of alfalfa, sesame and sorghum","authors":"H. Omer, I. Mohammed","doi":"10.13057/cellbioldev/v010203","DOIUrl":"https://doi.org/10.13057/cellbioldev/v010203","url":null,"abstract":"Abstract. Omer HHM, Mohammed IS. 2017. Allelopathic effects mesquite (Prosopis juliflora) aqueous extracts on seeds germination and seedling growth of alfalfa, sesame and sorghum. Cell Biol Dev 1: 51-54. Mesquite plant [Prosopis juliflora (Swartz) DC] is an invasive tree or shrub native to South America. Unfortunately, the plant threatens biodiversity and agriculture due to deliberate distribution within Sudan. Furthermore, this plant has an allopathic potential that may be caused by falling leaves, fruits, root exudates, or plant leachates. These allelochemicals may inhibit the germination and growth of agricultural crops. This study was conducted in the Laboratory of Plant Pathology, College of Agricultural Studies, Sudan University of Science and Technology, Khartoum, in January-February 2016. The aim of this study was to elucidate the potential of allopathic effects of aqueous extract of different parts of mesquite plant, i.e., leaves, fruits, bark, and roots, on germination and early seedlings growth of alfalfa, sesame, and sorghum. The results indicated that the aqueous extracts of different parts of the mesquite plant significantly ( P ? 0. 05) inhibited the seeds' germination and reduced the early growth of the seedlings. These suggest that the inhibitory substance (s) were widely distributed in mesquite plants but to varying extents. Moreover, fruits and leaves extracts were more pronounced and consistent than bark and roots. That could be attributed to the mesquite fruits and leaves aqueous extracts containing more water-soluble allelochemicals than roots and bark. They gave 0.0% germination in alfalfa and sesame and 47.6-86.7% in sorghum, respectively, compared to control. At the same time, the length of hypocotyl and radical was reduced to 0.0 cm and up to 2.7 cm depending on the efficacy of extract and the response of the test crop. Thus, it is recommended to study the nature of inhibitors to determine whether allelopathic is the cause of the extraordinary success of mesquite on the flat plains of agricultural land in Sudan.","PeriodicalId":145551,"journal":{"name":"Cell Biology and Development","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114904188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}