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Heat-tolerant maize for rainfed hot,dry environments in the lowland tropics:From breeding to improved seed delivery

The Crop Journal 2023年第4期11卷 986-1000页

作者： Pervez H.Zaidi Madhumal Thayil Vinayan Sudha K.Nair Prakash H.Kuchanur Ramesh Kumar Shyam Bir Singh Mahendra prasad tripathi Ayyanagouda Patil Salahuddin Ahmed Aamir Hussain Atul Prabhakar Kulkarni Passang Wangmo Mitchell R.Tuinstra Boddupalli M.Prasanna International Maize and Wheat Improvement Center(CIMMYT) Hyderabad 502324India University of Agricultural Sciences Raichur 584104KarnatakaIndia ICAR-Indian Institute of Maize Research Ludhiana 141001BiharIndia National Maize Research Program RampurChitwan 44200Nepal Bangladesh Wheat and Maize Research Institute Dinajpur-5201Bangladesh Maize and Millet Research Institute YusafwalaSahiwal 57000Pakistan Agriculture Research and Development Centre Wengkhar 43001Bhutan Institute of Plant Sciences Purdue UniversityWest LafayetteIN 47906USA International Maize and Wheat Improvement Center(CIMMYT) NairobiKenya

Climate change-induced heat stress combines two challenges:high day-and nighttime temperatures,and physiological water deficit due to demand-side drought caused by increase in vapor-pressure *** is one of the major factors in low productivity of maize in rainfed stress-prone environments in South Asia,affecting a large population of smallholder farmers who depend on maize for their sustenance and *** International Maize and Wheat Improvement Center(CIMMYT)maize program in Asia,in partnership with public-sector maize research institutes and private-sector seed companies in South Asian countries,is implementing an intensive initiative for developing and deploying heat-tolerant maize that combines high yield potential with resilience to heat and drought *** the integration of novel breeding tools and methods,including genomics-assisted breeding,doubled haploidy,fieldbased precision phenotyping,and trait-based selection,new maize germplasm with increased tolerance to heat stress is being developed for the South Asian *** a decade of concerted effort has resulted in the successful development and release of 20 high-yielding heat-tolerant maize hybrids in CIMMYT genetic *** public–private partnerships,eight hybrids are presently being deployed on over 50,000 ha in South Asian countries,including Bangladesh,Bhutan,India,Nepal,and Pakistan.

关键词： Climate change Drought Heat stress Lowland tropics Maize Vapor pressure deficit

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Effects of light availability on leaf attributes and seedling growth of four tree species in tropical dry forest

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Ecological Processes 2020年第1期9卷 17-32页

作者： Sachchidanand tripathi Rahul Bhadouria Pratap Srivastava Rajkumari S.Devi Ravikant Chaturvedi A.S.Raghubanshi Ecosystems Analysis Laboratory Department of BotanyInstitute of ScienceBanaras Hindu UniversityVaranasi 221005India Department of Botany Deen Dayal Upadhyaya CollegeUniversity of DelhiNew Delhi 110078India Natural Resource Management Laboratory Department of BotanyUniversity of DelhiNew Delhi 110007India Shyama prasad Mukherjee Post-graduate College University of AllahabadAllahabad 211013India Xishuangbanna Tropical Botanical Garden Chinese Academy of SciencesYunnan 666303China Institute of Environment and Sustainable Development(IESD) Banaras Hindu UniversityVaranasi 221005India

Background:In tropical dry forests,variation in understory light availability due to season and canopy tree density could be a governing factor in establishment and growth of tree *** with varying life history traits are expected to respond differentially to such *** investigated the response of seedlings of four tree species in a tropical day forest in relation to spatiotemporal variability of *** attempt to explore the role of leaf attributes in explaining intra-and inter-specific variations in relative growth *** study sites,each with three contrasting canopy conditions,were selected along a soil moisture *** of four tree species(viz.,Acacia catechu,Bridelia retusa,Lagerstroemia parviflora,and Shorea robusta),varying in life history traits,were monitored for seasonal variations in growth traits across canopy condition and sites for 2 ***:We observed a larger variation in leaf attributes for pioneer *** showed highest mean values for leaf dry matter content,leaf nitrogen concentration,leaf phosphorus concentration,net stomatal conductance,net photosynthetic rate,and relative growth rate in high light *** and *** demonstrated highest mean values for all the leaf attributes(except leaf dry matter content)in low light ***,intermediate values for leaf attributes were observed in *** which preferred moderate light ***:Seasonal variations in light availability at the forest floor appear to play an important role in the establishment and growth of tree seedlings in seasonal dry *** attributes can be used to explain intra-and inter-specific variation in response to light *** attributes in combinations can be used to predict relative growth rate of tree species in tropical dry environment,which apart from soil moisture is also determined by light availability due to seasonal changes and canopy tree density.

关键词： Tropical dry forest Tree seedlings Light intensity Leaf attributes Pioneer species Shade tolerance

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A Critical Review on Traditional Herbal Drugs: An Emerging Alternative Drug for Diabetes

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International Journal of Organic Chemistry 2013年第1期3卷 1-22页

作者： Krishna Bihari Pandeya Indra prasad tripathi Mahendra Kumar Mishra Neelesh Dwivedi Yogesh Pardhi Arti Kamal Priyanka Gupta Nupa Dwivedi Chinmayi Mishra Faculty of Science & Environment Mahatma Gandhi Chitrakoot Gramoday Vishwavidyalaya Chitrakoot India Reseach Assistant Tropical Forest Research Institute (TFRI) Jabalpur India Research Scholar Mahatma Gandhi Chitrakoot Vishwavidyalaya Chitrakoot India Vice-Chancellor Mahatma Gandhi Chitrakoot Vishwavidyalaya Chitrakoot India

Diabetes is a chronic metabolic disease reaching an epidemic proportion in many parts of the world. By the year 2025 it is expected that 333 million people of the world will have diabetes as their main ailment. As today, India assumes the position of the diabetic capital of the world with the highest percentage of its population suffering from diabetes. It is pathetic to mention that in proportion to its people suffering from diabetes, this country has very weak spending power for treatment because of wide spread poverty. Therefore, this review is aimed at opening up new vistas in realizing the therapeutic potential of Ayurveda in treatment of diabetes and other chronic diseases. All drugs which we have discussed in this review have a significant role in therapy of diabetes mellitus.

关键词： Diabetes Mellitus Metabolic Disease Ayurveda Hyperglycemia Synthetic Drugs Herbal Drugs Metallo Therapy Oral Hypoglycemic Drugs

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Clomiphene Citrate Induces ROS-Mediated Apoptosis in Mammalian Oocytes

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Open Journal of Apoptosis 2014年第3期3卷 52-58页

作者： Shail K. Chaube Tulsidas G. Shrivastav Shilpa prasad Meenakshi Tiwari Anima tripathi Ashutosh N. Pandey Karuppanan V. Premkumar Cell Physiology Laboratory Biochemistry Unit Department of Zoology Banaras Hindu University Varanasi-221005 India Department of Reproductive Biomedicine National Institute of Health and Family Welfare New Delhi-110067 India

The clomiphene citrate (CC), a nonsteroidal triphenylethylene compound, is a first line of medicine used for the induction of ovulation in anovulatory women worldwide. In spite of high ovulation induction with the use of CC, the pregnancy rate is much lower. Such a discrepancy could be due to the peripheral anti-estrogenic effect of CC, particularly at the level of ovary, endometrium and cervical mucus. CC induces ovulation by binding to the estrogen receptors and generates hypoestrogrnic state in hypothalamus leading to release of pituitary gonadotropins. CC may have a direct effect at the level of ovary but the molecular mechanism remains unclear. Animal studies suggest that the CC induces apoptosis in granulosa cells and results hypoestrogenic state in the ovary. Reduced estradiol 17β level in the ovary affects development and maturation of oocyte leading to oocyte apoptosis. Further, CC increases hydrogen peroxide (H2O2) level and thereby bax protein expression and DNA fragmentation in cumulus-granulosa cells as well as in oocytes. The exogenous supplementation of either estradiol 17β or melatonin reduces H2O2 level in ovary, delays meiotic cell cycle progression in oocyte and protects oocyte apoptosis. Hence, supplementation of estradiol 17β or melatonin along with CC could be beneficial to protect granulosa cell as well as oocyte apoptosis and inhibit deterioration of oocyte quality. Thus, maintenance of oocyte quality may overcome the adverse effect caused due to CC treatment during infertility management.

关键词： Clomiphene Citrate Ovulation Induction ROS Generation Apoptosis Oocyte Quality

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Rice Production Prospects in Eritrea

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Journal of Water Resource and Protection（水资源与保护） 2015年第17期

作者： Ramesh prasad tripathi Woldeselassie Ogbazghi Semere Amlesom

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Postoperative mometasone irrigations improve quality of life in skull base tumor patients

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2023年第4期9卷 314-319页

作者： Mandy K.Salmon Rijul S.Kshirsagar Jacob G.Eide Auddie M.Sweis Kathleen Davin Aman prasad Heather Ungerer Elizabeth Stevens Kevin Ig‐Izevbekhai Siddhant tripathi Tran B.Locke Theodore Lin Brian M.Sweis Michael A.Kohanski Nithin D.Adappa James N.Palmer Department of Otorhinolaryngology—Headand Neck Surgery University of PennsylvaniaPhiladelphiaPennsylvaniaUSA Division of Otolaryngology—Head and Neck Surgery North Shore University Health SystemThe University of ChicagoEvanstonIllinoisUSA University of Cincinnati School of Medicine CincinnatiOhioUSA Department of Otolaryngology Baylor College of MedicineHoustonTexasUSA Lewis Katz School of Medicine Temple UniversityPhiladelphiaPennsylvaniaUSA Department of Neuroscience University ofMinnesotaMinneapolisMinnesotaUSA

Objectives:The use of topical corticosteroids to manage postoperative sinonasal symptoms after endoscopic skull base surgery (ESBS) has not been well *** quantified long‐term impact of postoperative steroid irrigations (SIs) on quality of life of patients after ***:Retrospective review of patients at the University of Pennsylvania undergoing ESBS from 2010 to *** on patient demographics and postoperative treatment with nasal saline irrigation twice daily with and without dissolved steroids (mometasone or budesonide) was ***,and 1‐,3‐,6‐,12‐,18‐,and 24‐month postoperative Sino‐Nasal Outcome Test (SNOT‐22) scores were ***:A total of 727 patients were assessed (53.4% males),with 479 patients in the no SI group and 248 patients in the SI *** SNOT‐22 scores did not differ significantly (P = 0.19).1‐,3‐,6‐,12‐,18‐,and 24‐month post‐op SNOT‐22 scores did not significantly differ between ***,mometasone irrigations resulted in significantly lower postoperative 2‐year SNOT‐22 scores compared to budesonide (P < 0.01) and saline (P = 0.03).Conclusions:Though corticosteroid irrigations are routine in managing inflammatory sinus disease,their role in postoperative management after ESBS for tumors is *** findings suggest that mometasone irrigation may be effective at improving postoperative quality of life in patients after ESBS.

关键词： postoperative steroid irrigations skull base tumors

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Heat-tolerant maize for rainfed hot, dry environments in the lowland tropics: From breeding to improved seed delivery

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The Crop Journal 2023年第4期

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