New report of Citrus indica Yu. Tanaka,a wild progenitor species of citrus from Dailong Forest,Manipur, and recommendation for its conservation     

Devi  Elangbam Julia  Labala  Rajendra Kumar  Sanabam  Rakesh  Singh  Nandeibam Samarjit  Modak  Rahul  Devi  Huidrom Sunitibala 《Genetic Resources and Crop Evolution》2022,69(2):545-558

Genetic Resources and Crop Evolution - Citrus indica Yu. Tanaka is a wild and endangered progenitor species of citrus endemic to North East (NE) India. It is reported to be restricted to Nokrek...  相似文献   

First report of dry rot of potato caused by Fusarium proliferatum in India     

Tiwari  Rahul Kumar  Bashyal  Bishnu Maya  Shanmugam  V.  Lal  Milan Kumar  Kumar  Ravinder  Sharma  Sanjeev  Naga  Kailash Chandra  Chourasia  Kumar Nishant  Aggarwal  Rashmi 《植物病害和植物保护杂志》2022,129(1):173-179

Journal of Plant Diseases and Protection - Potato stands first as a non-cereal food crop for global consumption purposes. During the year 2019–20, dry rot disease symptoms were observed on...  相似文献   

Preparative procedures markedly influence the appearance and structural integrity of protein storage vacuoles in soybean seeds     

Krishnan HB 《Journal of agricultural and food chemistry》2008,56(9):2907-2912

In legumes, vacuoles serve as the final depository for storage proteins. The protein storage vacuoles (PSVs) of soybean contain electron-transparent globoid regions in which phytic acid ( myo-inositol-1,2,3,4,5,6-hexakisphosphate) is sequestered. This paper reports the effect of preparative procedures on the appearance and ultrastructural integrity of PSVs in soybeans. Electron microscopy examination of both developing and mature soybean seeds that were postfixed with osmium tetroxide revealed PSVs that had a homogeneous appearance with very few globoid crystals dispersed in them. Numerous electron-dense lipid bodies were readily seen in these cells. Omission of osmium tetroxide strikingly altered the appearance of PSVs and aided the visualization of the location of the globoids in the PSVs. In contrast to the osmicated tissue, lipid bodies appeared as electron-transparent spheres. The choice of dehydration reagent or staining procedure had little influence on the appearance of the PSVs. The results of this study demonstrate the profound effect of osmium tetroxide on the appearance and structural integrity of PSVs in soybean.  相似文献   

Assessment of indigenous Nepalese soybean as a potential germplasm resource for improvement of protein in North American cultivars     

Krishnan HB  Natarajan SS  Mahmoud AA  Bennett JO  Krishnan AH  Prasad BN 《Journal of agricultural and food chemistry》2006,54(15):5489-5497

Soybeans contain approximately 40% protein and 20% oil and represents an important source of protein in animal rations and human diets. Attempts are being made to increase further the overall protein content of soybeans by utilization of exotic germplasms. In this study, soybean cultivars from Nepal have been characterized and their potential as a germplasm resource for improvement of the protein content and quality of North American cultivars assessed. Soybean cultivars 'Sathia', 'Seti', 'Kavre', and 'Soida Chiny', indigenous to various regions of Nepal, contained 42-45% protein, which is significantly higher in comparison to that of the North American cultivar 'Williams 82' (39%). Fractionation of seed protein by high-resolution two-dimensional gel electrophoresis revealed differences in the protein profiles of these cultivars. Various isoelectric forms of glycinin and beta-conglycinin were identified by comparing the matrix-assisted laser desorption ionization time-of-flight mass fingerprinting data against the National Center for Biotechnology Information nonredundant database. Nepalese cultivar Sathia was distinct, lacking some isoelectric forms of acidic and basic glycinin subunits while expressing other unique forms. The contribution of these unique protein spots present in either Sathia or Williams 82 to the total protein content was quantified using scanning laser densitometry. Distinct restriction fragment length polymorphisms (RFLP) for group 1 glycinin genes were observed among the tested Nepalese genotypes, indicating sequence variation among the cultivars. Conversely, evaluation of RFLP for the genes encoding group 2 glycinins, beta-conglycinin, and Bowman-Birk proteinase inhibitors indicated a high degree of conservation in these genes. Determination of amino acid composition, a reflection of protein quality, indicated that the arginine content of the Nepalese soybeans ranged from 7.7 to 8.1%, which was 5-10% higher than the 7.4% expressed in Williams 82. Additionally, Karve and Seti contained significantly more cysteine than Williams 82. Nepalese high-protein soybeans having a desirable amino acid composition hold potential to increase the protein quality and diversity of North American cultivars.  相似文献   

Evaluation of end use quality and root traits in wheat cultivars associated with 1RS.1BL translocation     

Ambika Sharma  Imran Sheikh  Rahul Kumar  Krishan Kumar  Pritesh Vyas  H. S. Dhaliwal 《Euphytica》2018,214(4):62

1RS.1BL translocation in wheat, exploited for its multiple disease resistance (Lr26, Yr9, Sr31 and Pm8), has  maintained significance due to its agronomical advantages. However, this translocation exhibits serious defects in dough quality due to the presence of Sec-1 loci on 1RS arm. In the present investigation micro SDS sedimentation test (MST), high molecular weight glutenin subunits (HMWGS) and bread making analysis of 26 genotypes were studied along with their root phenotyping in the field and under hydroponic culture system. The MST values showed that genotypes having Sec-1 loci had low MST values but in the presence of Glu-D1 (5?+?10) with Glu-B1 (7?+?9) and (7?+?8) they had high MST values, thus overcoming the negative effects of secalin on dough quality. The loaf volume showed positive correlation with MST values of the genotypes. The translocation of 1RS arm led to higher root biomass and longer root length than Pavon 76 without 1RS. Better root traits in recombinant 1RS 44:38 and 1B?+?38 than Pavon 1RS.1BL suggested the role of negative epistatic effects between different QTL regions in 1RS arm. The results suggest that it should be possible to harness the useful alleles associated with good dough quality, better root traits, high yield and stress tolerance with or without secalin.  相似文献   

Semiochemicals from Trichosanthes anguina (Cucurbitaceae) plants influence behavior in Diaphania indica     

Rahul Debnath  Bhramar Bhattacharyya  Anamika Koner  Anandamay Barik 《Pest management science》2023,79(11):4295-4308

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