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Direct-Seeded Rice: Genetic Improvement of Game-Changing Traits for Better Adaption

Rice science 2024年第4期31卷 417-433页

作者： priyanka NEGI Jagadish RANE Rajendra Sadashiv WAGH Tukaram Jayaram BHOR Dipti Digambar GODSE priyanka jadhav C.ANILKUMAR Dasari SREEKANTH K.SAMMI REDDY Sharad Ramrao GADAKH K.M.BORAIH C.B.HARISHA P.S.BASAVARAJ Indian Council of Agricultural Research(ICAR)-National Institute of Abiotic Stress Management Baramati 413115India Mahatma Phule Krishi Vidyapeeth Rahuri 413722India ICAR-Central Institute for Arid Horticulture Bikaner 334006India ICAR-National Rice Research Institute Cuttack 753006India ICAR-Directorate of Weed Research Jabalpur 482004India Dr.Panjabrao Deshmukh Krishi Vidyapeeth Akola 444104India

The sustainability of rice production continues to be a subject of uncertainty and inquiry attributed to shifts in climatic conditions. In light of the impending climate change crisis and the high labor and water costs accompanying it, direct-seeded rice(DSR) is unquestionably one of the most practical solutions. Despite its resource and climate-friendly advantages, early maturing rice faces weed competitiveness and seedling establishment challenges. Resolving these issues is crucial for promoting its wider adoption among farmers, presenting it as a more effective sustainable rice cultivation method globally. Diverse traditional and contemporary breeding methods are employed to mitigate the limitations of the DSR approach, leveraging advanced techniques such as speed breeding and genome editing. Focusing on key traits like mesocotyl length elongation, early seedling vigor, root system architecture, and weed competitiveness holds promise for transformative improvements in DSR adaptation at a broader scale within farming communities. This review aims to summarize how these features contribute to increased crop production in DSR conditions and explore the research efforts focusing on enhancing DSR adaptation through these traits. Emphasizing the pivotal role of these game-changing traits in DSR adaptation, our analysis sheds light on their potential transformative impact and offers valuable insights for advancing DSR practices.

关键词： climate change direct-seeded rice aerobic rice early vigor trait

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Pharmacodynamic evaluation for antiplasmodial activity of Holarrhena antidysentrica(Kutaja) and Azadirachta indica(Neemb) in Plasmodium berghei infected mice model

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Asian Pacific Journal of Tropical Medicine 2013年第7期6卷 520-524页

作者： jadhav priyanka Lal Hingorani Kshirsagar Nilima University Department of Infectious Diseases and University Department of Interpathy Research and Technology.Maharashtra University of Health Sciences.Mumbai India Pharmanza Herbals Pvt.Ltd. MumbaiIndia Office of National Chair(Clinical Pharmacology).Indian Council of Medical Research(ICMR).Government of India Dean ESI-PGIMSR MGM HospitalGovt.of India.MumbaiIndia

Objective:To investigate in-vivo anti-plasmodial activity of aqueous extracts of plants selected based on the symptomology mentioned in ***:The aqueous extracts of Holarrhena antidysentrica(***)(Kutaja) and Azadirachta indica(***)(Neemb) for their antiplasmodial potential in Plasmodium berghei(***) infected mice was assessed using Peters four day suppressive *** the extracts were administered at 2 dose levels,full dose(1 000 mg/d) and minimized dose(200 mg/d).10~6 *** infected RBCs were injected on day ’0’ and treated from day ’0’ till day ’3’ post-infection,Tail blood smears were collected, giemsa stained and *** mice were observed for survival and parasitemia was assessed till 50%of mice in control ***:It was observed that the percentage of parasitemia increased gradually in all the groups,with maximum in control group(Day 3-35,Day 9-46.98) and minimum in Chloroquine arm(Day *** 9-19.92).The percentage of parasitemia was compared using Mann-Whitney U test depicting that all test groups exhibited reduction in parasitemia as compared to control(P-value<0.002 for all groups).These groups showed similar percentage of survival as ***:The present investigation demonstrated the anti-plasmodial effects of *** and *** are two most commonly used medicinal plants in Ayurved for treatment of fever.

关键词： Holarrhena antidysentrica Azadirachta indica Plasmodium berghei Malaria Peter’s 4 day test Ayurved Parasitemia

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Phenazine Methosulphate Modulating the Expression of Genes Involved in Yeast to Hyphal Form Signal Transduction in <i>Candida albicans</i>

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Advances in Microbiology 2017年第11期7卷 707-718页

作者： Ashwini Khanderao jadhav priyanka Jangid Rajendra Patil Wasudev Gade Kiran Kharat Sankunny Mohan Karuppayil School of Life Sciences SRTM University Nanded India Department of Biotechnology Savitribai Phule Pune Univesity Pune India Department of Biotechnology Deogiri College Aurangabad India

Candida albicans has ability to switch from yeast to hyphal form which is an important virulence factor. The objective of the research is to study the effect of Phenazine Methosulphate (PMS) on virulence factors and to study expression profile in yeast to hyphal form transition in C. albicans. Phenazine Methosulphate (PMS) acted as an inhibitor of yeast to hyphal form transition, adhesion and biofilm formation in C. albicans. RTPCR study demonstrated that PMS Modulate the expression of genes involved in Ras1-cAMP-Efg1 and Cek1-MAPK signal transduction pathways. Cell cycle of C. albicans was arrested at S phase on treatment of PMS. Hyphal suppressor genes like Tup1, Mig1 and Nrg1 were upregulated by PMS. Based on our data on expression of genes during yeast to hyphal form transition in presence and absence of PMS, we hypothesize that inhibition of hyphal formation may be due to the overexpression of negative regulators of hyphal growth. Targeting of hyphal specific genes involved in these pathways may be a promising strategy for anti-candida drug development.

关键词： Phenazine Methosulphate Candida albicans Y-H Form Transition Biofilm Tup1 Mig1 and Nrg1

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