NBU Journal of Plant Sciences最新文献_第10页

Genetic Resources of Wild Rice (Oryza rufipogon) for Biotic and Abiotic Stress Tolerance Traits 野生稻(Oryza rufipogon)生物和非生物抗逆性性状的遗传资源

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2021.v13i01.003

Subhasita Roy

{"title":"Genetic Resources of Wild Rice (Oryza rufipogon) for Biotic and Abiotic Stress Tolerance Traits","authors":"Subhasita Roy","doi":"10.55734/nbujps.2021.v13i01.003","DOIUrl":"https://doi.org/10.55734/nbujps.2021.v13i01.003","url":null,"abstract":"Rice (Oryza sativa L.) is the most important staple food crop of the world; nearly half of the global population depend on it for majority of their dietary intake. Many stresses (biotic and abiotic) have critically affected rice production throughout the world due to global warming, changing climatic conditions and in addition non-durability of biotic resistance gene(s) incorporated into cultivars. Yield increase is not as per the required rate and becomes yield rate is in stagnation. Primary reason of yield stagnation is due to the narrow genetic base in the released varieties. Minimum number of parental lines were utilised to develop new crop varieties which ultimately leads to narrow genetic base. The narrow genetic base in the improved varieties is going to be a main bottleneck for crop improvement program which shield the yield increase. Genetic bottleneck during domestication causes erosion of the genetic diversity in the well adapted cultivars which leads to yield stagnation. Yield plateaus can be surmount through genetic gain by combining the yield related genes/QTLs from different genetic resources of rice germplasm both from local landraces (CLR) and crop wild relatives (CWR). Wild species are the reservoir of genetic diversity with wide adaptability and tolerance to many biotic and abiotic stresses. It is utmost necessary to characterize and conserve rice germplasm for evaluation and effective use of the genetic diversity prevailed in the rice gene pool. Genetic variability in respect to biotic/abiotic resistance is inadequate in the genetic resources of cultivated rice; however, these traits specific genes are available in the unexplored wild species of Oryza which are considered as rich source of agronomically important traits including biotic/abiotic traits. Therefore, breeders are trying to identify and transfer of these valuable genes from wild Oryza species to improve varieties through pre-breeding method and with the assistance of molecular breeding technology.","PeriodicalId":122617,"journal":{"name":"NBU Journal of Plant Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129308449","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}

引用次数: 0

Influence of tungsten and molybdenum on seed germination and early seedling growth of wheat - a comparative study 钨钼对小麦种子萌发及幼苗生长影响的比较研究

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2012.v06i01.003

Ajay Kumar, N. Aery

引用次数: 2

Effect of copper on seed germination, root elongation and shoot elongation of seedlings of commercially cultivated tea varieties 铜对商品栽培茶品种种子萌发、根伸长和芽伸长的影响

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2013.v07i01.006

S. Mandal, A. Saha, D. Saha

{"title":"Effect of copper on seed germination, root elongation and shoot elongation of seedlings of commercially cultivated tea varieties","authors":"S. Mandal, A. Saha, D. Saha","doi":"10.55734/nbujps.2013.v07i01.006","DOIUrl":"https://doi.org/10.55734/nbujps.2013.v07i01.006","url":null,"abstract":"Tea (Camellia sinensis L. (0.) Kuntze) is an economically important plantation crop of India but is prone to attack by several fungal pathogens. Copper based fungicides are being used for decades to control fungal disease in tea which may lead to accumulation of copper in the soil. The aim of the present work was to investigate toxic effect of Cu+2 on seed germination, growth and morphological changes in tea seedlings. Different concentration of copper sulphate was applied on three different commercially cultivated tea varieties (TS-462, TS-520 and TS-463). The effect of different concentrations of copper (0.5 – 8 mM) on seed germination, root elongation and shoot elongation of the tea plant were evaluated. Percent germination was found to decrease progressively with increasing concentrations of Cu+2. Maximum reduction of seed germination was showed by TS-463. Several damaging effects such as reduced root hair proliferation, structural deformation and reduction in length of root and shoot were observed when the germinated seedlings were allowed to grow at higher concentrations of copper solutions. Decrease in the dry mass of both root and shoot were also recorded. The results showed that excess copper have negative effect on germination of tea seeds and subsequent growth of the seedlings.","PeriodicalId":122617,"journal":{"name":"NBU Journal of Plant Sciences","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129520516","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}

引用次数: 0

Plant Defense Proteins 植物防御蛋白

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2007.v02i01.001

Biswanath Chakraborty

{"title":"Plant Defense Proteins","authors":"Biswanath Chakraborty","doi":"10.55734/nbujps.2007.v02i01.001","DOIUrl":"https://doi.org/10.55734/nbujps.2007.v02i01.001","url":null,"abstract":"Plants are compelled to withstand stresses of all kinds, be it biotic, abiotic or anthropogenic as a consequence of their immobility. The initial infection process involving adhesion/recognition events between plants and fungal pathogens is essential for the establishment of pathogenesis. The extracellular matrix (ECM) is a biologically active part of the cell surface composed of a complex mixture of macromolecules that, in addition to serving a structural function, profoundly affect the cellular physiology of the organism. During the past two decades it has become evident that the cell wall is a dynamic organization that is essential for cell division, enlargement and differentiation as well as responding to biotic and abiotic stress. ECM is also the source of signals for cell recognition within the same or between different organisms. Cell walls are natural composite structures, mostly made up of high molecular weight polysaccharides, proteins and lignins. Lignins are only found in specific cell types. Arabidopsis thaliana cell wall proteins (CWP) that can be involved in modifications of cell wall components, wall structure and signaling as well as interactions with plasma membrane proteins at the cell surface has been reviewed.","PeriodicalId":122617,"journal":{"name":"NBU Journal of Plant Sciences","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132810174","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}

引用次数: 2

Influence of culture media and environmental factors on mycelial growth, sporulation and spore germination behaviour of Curvularia eragrostidis (P. Hennings) Mayer 培养基和环境因素对曲霉菌丝生长、产孢和孢子萌发行为的影响

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2008.v02i01.007

A. Saha, S Dasgupta, P. Mandal, D. Saha

引用次数: 0

Can household-level fermentation technology assure food safety? 家用发酵技术能保证食品安全吗?

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2007.v01i01.005

P. Sarkar

引用次数: 0

Assessment of genetic diversity of some commonly grown rice genotypes of South Bengal using microsatellite markers associated with the saltol QTL mapped on 1"chromosome 利用定位于1”染色体上的与saltol QTL相关的微卫星标记评价南孟加拉邦一些常见水稻基因型的遗传多样性

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2011.v05i01.005

T. Lodha, J. Karmakar, R. Roychoudhuri, N. Dey

引用次数: 1

Antifungal Agents for Treatment of Mycoses 治疗真菌病的抗真菌药物

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2015.v09i01.002

N. Mandal

引用次数: 0

Antioxidative responses of mandarin plants to water stress 柑桔植物对水分胁迫的抗氧化反应

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2013.v07i01.003

S. Allay, R. Lama, U. Chakraborty, Biswanath Chakraborty

{"title":"Antioxidative responses of mandarin plants to water stress","authors":"S. Allay, R. Lama, U. Chakraborty, Biswanath Chakraborty","doi":"10.55734/nbujps.2013.v07i01.003","DOIUrl":"https://doi.org/10.55734/nbujps.2013.v07i01.003","url":null,"abstract":"Citrus reticulata grows in warm climatic conditions. Stresses such as water logging, drought, soil acidity, unbalanced nutrition and pathogenic infestation lead to root injury resulting in citrus tree decline and therefore huge economic losses. In order to determine the effect of flooding and drought on mandarin plants, mandarin plants were subjected to water logging condition in the field and in pots for drought condition. Biochemical and morphological changes induced by water logging and drought conditions were determined. The plants showed slight wilting and leaf dropping by the third day of flooding whereas in drought the leaves curled up, became crisp and later dried out. Marked changes in antioxidative enzymes such as peroxidase, catalase and ascorbate peroxidase was observed during stress in comparison to control plants. Antioxidative activity was seen to be more in the leaves than in the roots. Among the antioxidants carotenoid content showed a significant decrease during the flood stress but increased in drought stress. An increase in ascorbate content was observed during stress in comparison to the control. From this study, we can conclude that water stress causes adjustment of antioxidant balance in mandarin plants.","PeriodicalId":122617,"journal":{"name":"NBU Journal of Plant Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130217538","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}

引用次数: 0

Footprint of Nitric oxide in induced systemic resistance 一氧化氮在诱导全身抵抗中的作用

NBU Journal of Plant Sciences Pub Date : 1900-01-01 DOI: 10.55734/nbujps.2013.v07i01.008

R. Acharya, P. Patra, N. Chakraborty, N. Gupta, K. Acharya

引用次数: 1