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Overexpression of ZxABCG11 from Zygophyllum xanthoxylum enhances tolerance to drought and heat in alfalfa by increasing cuticular wax deposition

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The Crop Journal 2023年第4期11卷 1140-1151页

作者： Linbo Liu Aike Bao Hujun Li Wanpeng Bai Haishuang Liu Ye Tian Yiying Zhao Fangchen Xia Suomin Wang State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730020GansuChina College of Biology Hunan UniversityChangsha 410008HunanChina

Drought and heat stresses cause yield losses in alfalfa,a forage crop cultivated *** its drought and heat tolerance is desirable for maintaining alfalfa productivity in hot,arid *** wax forms a protective barrier on aerial surfaces of land plants against environmental ***11encodes an ATP binding cassette(ABC) transporter that functions in the cuticular wax transport *** this study,Zx ABCG11 from the xerophyte Zygophyllum xanthoxylum was introduced into alfalfa by Agrobacterium tumefaciens-mediated *** to the wild type(WT),transgenic alfalfa displayed faster growth,higher wax crystal density,and thicker cuticle on leaves under normal *** either drought or heat treatment in greenhouse conditions,the plant height and shoot biomass of transgenic lines were significantly higher than those of the *** alfalfa showed excellent growth and 50% greater hay yield than WT under field conditions in a hot,arid *** of Zx ABCG11 up-regulated wax-related genes and resulted in more cuticular wax deposition,which contributed to reduction of cuticle permeability and thus increased water retention and photosynthesis capacity of transgenic ***,overexpression of Zx ABCG11 can simultaneously improve biomass yield,drought and heat tolerance in alfalfa by increasing cuticular wax *** study provides a promising avenue for developing novel forage cultivars suitable for planting in hot,arid,marginal lands.

关键词： Alfalfa ZxABCG11 Cuticular wax Yield stress tolerance

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Nucleus-Encoded Thylakoid Protein,OsY3IP1,Confers Enhanced tolerance to Saline and Alkaline stresses in Rice

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Rice science 2022年第3期29卷 225-236页

作者： Hyeran MOON Young-Ah KIM Ryoung SHIN Chang-Jin PARK Department of Molecular Biology Sejong University Department of Bioresources Engineering Sejong University RIKEN Center for Sustainable Resource Science Plant Engineering Research Institute Sejong University

Abiotic stress confers serious damage to the photosynthetic machinery,often resulting in plant growth *** chloroplast open reading frame 3(Ycf3)-interacting protein 1(Y3IP1)is a nucleus-encoded thylakoid protein and plays an essential role in the assembly of photosystem *** full-length cDNA over-expresser(FOX)gene-hunting system is an approach using systemically generated gain-of-function *** the FOX-rice lines,a line CE175 overexpressing rice Y3IP1gene(Os Y3IP1)displayed less inhibition of root growth under saline(NaCl)*** expression of Os Y3IP1 was up-regulated under saline and alkaline(Na2CO3)stresses in the rice variety *** saline and alkaline treatments,transgenic Kitaake overexpressing OsY3IP1-GFP(OsY3IP1-GFPox/Kit)displayed higher levels of chlorophyll content compared to *** the stress conditions,the maximum quantum yield of photosystem II photochemistry levels was higher in OsY3IP1-GFPox/Kit than in *** increased tolerance conferred by OsY3IP1 overexpression correlated with reduced reactive oxygen species *** data provide new insights into the possible role of OsY3IP1 in the pathway suppressing photooxidative damage under stress *** features can be further exploited to improve saline and alkaline tolerances of rice plants in future.

关键词： alkaline reactive oxygen species rice saline stress tolerance

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Priming for Saline-Alkaline tolerance in Rice:Current Knowledge and Future Challenges

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Rice science 2023年第5期30卷 417-425页

作者： JIANG Changjie LIANG Zhengwei XIE Xianzhi Rice Research Institute Shandong Academy of Agricultural SciencesJinan 250100China Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun 130102China

Soil salinization and/or alkalization is a major constraint to crop production *** 60% of the cultivated land is affected by salt,over half of which is *** soils are characterized by high alkalinity and typically high salinity,which creates a complex saline-alkaline(SA) stress that affects plant *** cultivation has been accepted as an important strategy for effective utilization of SA land if water is available for ***,as a salt-sensitive plant,rice plants suffer severe SA-induced damage,which results in poor plant growth and grain *** approaches have been employed to improve rice productivity in SA *** them,the priming technique has emerged as a powerful method for enhancing SA tolerance in rice *** this review,we summarized how SA stress damages rice plants,and then presented how priming treatment can mitigate such damage.

关键词： saline-alkaline stress plant hormone abscisic acid reactive oxygen species antioxidant stress tolerance

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Drought tolerance in Mung Bean is Associated with the Genotypic Divergence, Regulation of Proline, Photosynthetic Pigment and Water Relation

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Phyton-International Journal of Experimental Botany 2023年第3期92卷 955-981页

作者： Mohammad Rafiqul Islam Mohd Mostofa Kamal Mohammad Faruk Hossain Jamil Hossain Mohammad Golam Azam Mst Masuma Akhter MKamrul Hasan Ibrahim Al-Ashkar Khalid FAlmutairi Ayman EL Sabagh Md Atikur Rahman Muhammad Aamir Iqbal Mohammad Sohidul Islam Agronomy Division Regional Agricultural Research StationBangladesh Agricultural Research Institute(BARI)Pabna6600Bangladesh Chief Research Scientist New Edge MicrobialsLtd.Albury2641Australia Horticulture Research Centre Regional Agricultural Research StationBangladesh Agricultural Research Institute(BARI)Pabna6600Bangladesh Pulses Research Centre BARIPabna6600Bangladesh Agronomy Division Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh Department of Agronomy Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh Department of Plant Production College of Food and AgricultureKing Saud UniversityRiyadh11451Saudi Arabia Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33156Egypt Grassland and Forage Division National Institute of Animal ScienceRural Development AdministrationCheonan31000Korea Department of Agronomy Faculty of AgricultureUniversity of Poonch RawalakotRawalakot12350Pakistan Department of Genetics and Plant Breeding Faculty of AgricultureBangladesh Agricultural UniversityMymensingh2202Bangladesh

Drought is one of the critical conditions for the growth and productivity of many crops including mung bean(Vigna radiata ***).Screening of genotypes for variations is one of the suitable strategies for evaluating crop adaptability and global food *** this context,the study investigated the physiological and biochemical responses of four drought tolerant(BARI Mung-8,BMX-08010-2,BMX-010015,BMX-08009-7),and four drought sensitive(BARI Mung-1,BARI Mung-3,BU Mung-4,BMX-05001)mung bean genotypes under wellwatered(WW)and water deficit(WD)*** WW treatment maintained sufficient soil moisture(22%±0.5%,i.e.,30%deficit of available water)by regularly supplying ***,the WD treatment was maintained throughout the growing period,and water was applied when the wilting symptom *** drought tolerant(DT)genotypes BARI Mung-8,BMX-08010-2,BMX-010015,BMX-08009-7 showed a high level of proline accumulation(2.52–5.99 mg g^(−1) FW),photosynthetic pigment(total chlorophyll 2.96–3.27 mg g^(−1) FW at flowering stage,and 1.62–2.38 mg g^(−1) FW at pod developing stage),plant water relation attributes including relative water content(RWC)(82%–84%),water retention capacity(WRC)(12–14)as well as lower water saturation deficit(WSD)(19%–23%),and water uptake capacity(WUC)(2.58–2.89)under WD condition,which provided consequently higher relative seed *** indicate that the tolerant genotypes gained better physiobiochemical attributes and adaptability in response to drought ***,the genotype BMX-08010-2 showed superiority in terms of those physio-biochemical traits,susceptibility index(SSI)and stress tolerance index(STI)to other *** on the physiological and biochemical responses,the BMX-08010-2 was found to be a suitable genotype for sustaining yield under drought stress,and subsequently,it could be recommended for crop improvement through hybridization *** addition,the identified traits can be used as markers to ide

关键词： Mung bean drought proline chlorophyll water status stress tolerance

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Screening and Assessment of Selected Chilli (Capsicum annuum L.) Genotypes for Drought tolerance at Seedling Stage

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Phyton-International Journal of Experimental Botany 2021年第5期90卷 1425-1443页

作者： Md.Rezwan Molla Md.Motiar Rohman Mahmuda Binte Monsur Mirza Hasanuzzaman Lutful Hassan Plant Genetic Resources Centre Bangladesh Agricultural Research InstituteGazipur1701Bangladesh Molecular Breeding Laboratory Plant Breeding DivisionBangladesh Agricultural Research InstituteGazipur1701Bangladesh Department of Agronomy Faculty of AgricultureSher-e-Bangla Agricultural UniversityDhaka1207Bangladesh Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh

This study was undertaken to investigate oxidative stress tolerant mechanisms in chilli(Capsicum annuum L.)under drought genotypes through evaluating morphological,physiological,biochemical and stomatal *** genotypes were evaluated for their genetic potential to drought stress tolerant at seedling *** days old seedlings were exposed to drought stress induced by stop watering for the following 10 days and rewatering for the following one week as *** on their survival performance,two tolerant genotypes ***-10906 and BD-109012 and two susceptible genotypes ***-10902 and RT-20 were selected for studying the oxidative stress tolerance *** reduced root and shoot length,dry weight,ratio,petiole weight and leaf area in both tolerant and susceptible genotypes,and a higher reduction was observed in susceptible *** reduction of leaf area and photosynthetic pigments were also found in tolerant ***,tolerant genotypes showed higher recovery than susceptible genotypes after the removal of stress.A higher reduction of relative water content(RWC)may cause an imbalance between absorbed and transpirated water in susceptible *** accumulation of proline in tolerant genotypes might be helpful to for better osmotic maintenance than that in susceptible *** genotypes showed higher antioxidant activity as they showed DPPH radical scavenging percentage than the susceptible ***,closer stomata in tolerant genotypes than susceptible ones helped to avoid dehydration in tolerant ***,the above morphological,physiological,biochemical and stomatal parameters helped to show better tolerance in chilli under drought stress.

关键词： Chilli drought stress tolerance morphology physiology biochemical altern

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Frontiers of Environmental Science & Engineering 2021年第2期15卷 77-85页

作者： Om Prakash Stefan JGreen Pooja Singh Puja Jasrotia Joel E.Kostka Earth Ocean and Atmospheric Science Department Florida State UniversityTallahasseeFL 32306USA National Centre for Microbial Resource National Centre for Cell ScienceMaharashtraPune-411007India Genome Research Core University of Illinois at ChicagoChicagoIL 60607USA Department of Biological Sciences University of Illinois at ChicagoChicagoIL 60607USA Georgia Institute of Technology Schools of Biology and Earth&Atmospheric Sciences AtlantaGA 30332USA Symbiosis School of Biological Sciences Symbiosis International(Deemed University)LavalePune-412115India

This work examines the physiologic basis of stress tolerance in bacterial strains of the genus Rhodanobacter that dominate in the acidic and highly metal contaminated near-source subsurface zone of the Oak Ridge Integrated Field Research Challenge(ORIFRC)*** of *** to levels of different stresses were studied in synthetic groundwater medium and R2A *** strains of ***,strains 2APBS1T and 116-2,tolerate low to circumneutral pH(4–8),high Uranium(1 mmol/L),elevated levels of nitrate(400 mmol/L)and high NaCl(2.5%).A combination of physiologic traits,such as growth at low pH,increased growth in the presence of high organics concentration,and tolerance of high concentrations of nitrate,NaCl and heavy metals is likely responsible for dominance of Rhodanobacter at the ORIFRC ***,extended incubation times and use of low carbon media,better approximating site groundwater conditions,are critical for accurate determination of stress *** study expands knowledge of the ecophysiology of bacteria from the genus Rhodanobacter and identifies methodological approaches necessary for acquiring accurate tolerance data.

关键词： Rhodanobacter Uranium Nitrate Metals stress tolerance

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Isolation and Functional Analysis of the bZIP Transcription Factor Gene TaABP1 from a Chinese Wheat Landrace

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Journal of Integrative Agriculture 2012年第10期11卷 1580-1591页

作者： CAO Xin-you CHEN Ming XU Zhao-shi CHEN Yao-feng LI Lian-cheng YU Yue-hua LIU Yang-na MAYou-zhi National Key Facility for Crop Genetic Resources and Genetic Improvement Key Laboratory of Crop Genetics and BreedingMinistry of Agriculture/Institute of Crop Sciences Chinese Academy of Agricultural Sciences Crop Research Institute Shandong Academy of Agricultural Sciences College of Agronomy Northwest A&F University

In plants, basic leucine zipper （bZIP） transcription factors play important roles in regulatory processes, including stress response, pathogenic defense and light response as well as organ and tissue differentiation. Chinese wheat landrace Pingyaoxiaobaimai （PYXBM）, an original parent of drought tolerant wheat varieties grown in northern China, is significantly tolerant to abiotic stresses such as drought, cold and nutrient deficiencies. In order to isolate key stress-responsive genes and then improve stress tolerances of conventional varieties, a bZIP transcription factor gene was isolated from a cDNA library of drought-treated PYXBM using the in situ plaque hybridization method, and was designated as Triticum aestivum L. abscisic acid （ABA）-responsive element binding protein 1 （TaABP1）. It encodes 372 amino acids, and contains three conserved domains （C1-C3） in the N terminal and a bZIP domain in the C terminal which is a typical protein structure for the group member of bZIP family. Transcriptional activation analysis showed that TaABP1 activated the expression of downstream reporter genes in yeast without ABA application. TaABP1 protein fused with green fluorescent protein （GFP） demonstrated that the localization of TaABP 1 protein is in the nucleus. Expression pattern assays indicated that TaABP1 was strongly induced by ABA, high salt, low temperature and drought, and its expression was stronger in stems and leaves than in the roots of wheat. Furthermore, overexpression of TaABP1 in tobacco showed significant improvement of drought tolerance. Data suggested that TaABP1 may be a good candidate gene for improving stress tolerance of wheat by genetic transformation and elucidation of the role of this gene will be useful for understanding the mechanism underlying drought tolerance of Chinese wheat landrace PYXBM.

关键词： wheat expression pattern stress tolerance sub-cellular localization transcriptional activation

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Arbuscular mycorrhizal fungi inoculation and exogenous indole-3-acetic acid application induce antioxidant defense response to alleviate cadmium toxicity in Broussonetia papyrifera

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Pedosphere 2024年第2期34卷 447-459页

作者： Xue LI Jingwei LIANG Hongjian WEI Yuxuan KUANG Hui CHEN Ming TANG Wentao HU State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources Guangdong Laboratory for Lingnan Modern AgricultureGuangdong Key Laboratory for Innovative Development and Utilization of Forest Plant GermplasmCollege of Forestry and Landscape ArchitectureSouth China Agricultural UniversityGuangzhou 510642China

Cadmium(Cd)contamination in soil poses a huge threat to plants even at low concentrations;Broussonetia papyrifera has great potential in remediation of soil heavy metal ***,whether exogenous indole-3-acetic acid(IAA)application and arbuscular mycorrhizal fungi(AMF)have synergistic effects on Cd tolerance of *** remains *** investigate the effects of AMF inoculation and IAA application on the tolerance of *** to Cd stress,two experiments were conducted:the first to investigate the effect of AMF(Rhizophagus irregularis)inoculation on the tolerance of *** to Cd stress and the second to investigate the combined effects of AMF inoculation and IAA application on the tolerance of *** to Cd *** including endogenous hormone concentration,antioxidant defense response,malondialdehyde(MDA)content,and gene expression related to antioxidant enzyme system and hormone were *** results indicated that AMF alleviated Cd toxicity of *** by reducing MDA content and improving antioxidant enzyme activities and Cd absorption ***,the combination of AMF inoculation and IAA application had a synergetic effect on the tolerance of *** to Cd stress through upregulating BpAUX1 and BpAUX2,which might contribute to root growth and root xylem synthesis,and by upregulating BpSOD2 and BpPOD34 to enhance the antioxidant enzyme *** work provides a new insight into the application of IAA in the remediation of soil Cd pollution by mycorrhizal plants.

关键词： enzyme activity geneexpression heavy metal phytoremediation remediation Rhizophagus irregularis soil cadmium pollution stress tolerance

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Recent advances in nano-enabled agriculture for improving plant performance

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The Crop Journal 2022年第1期10卷 1-12页

作者： Honghong Wu Zhaohu Li MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100083China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhen 518120GuangdongChina Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120GuangdongChina

Nano-enabled agriculture is an emerging hot *** facilitate the development of nano-enabled agriculture,reviews addressing or discussing the applications,knowledge gap,future research needs,and possible new research field of plant nanobiotechnology in agricultural production are *** we review the following topics in plant nanobiotechnology for agriculture:1)improving stress tolerance,2)stress sensing and early detection,3)targeted delivery and controlled release of agrochemicals,4)transgenic events in non-model crop species,and 5)seed *** discuss the knowledge gaps in these *** the use of nanomaterials for harvesting more electrons to improve photosynthetic performance,they could be used to convert n IR and UV to visible light to expand the light spectrum for *** discuss this approach to maintaining plant photosynthesis under light-insufficient *** aim in this review is to aid researchers to learn quickly how to use plant nanobiotechnology for improving agricultural production.

关键词： Nano-enabled agriculture Nanosensors Mechanisms Photosynthesis Signaling molecules stress tolerance

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Effect of β-glucan on stress tolerances and biocontrol efficacy of Cryptococcus laurentii against Penicillium expansum in pear fruit

Effect of β-glucan on stress tolerances and biocontrol effi...

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中国植物病理学会2015年学术年会

作者： FU Da ZENG Li-zhen ZHENG Xiao-dong YU Ting College of Biosystems Engineering and Food Science Fuli Institute of Food ScienceZhejiang Key Laboratory for Agro-Food ProcessingZhejiang R＆D Center for Food Technology and EquipmentZhejiang University

The objective of this study was to determine the effect of β-glucan on stress tolerances and biocontrol efficacy of Cryptococcus laurentii against Penicillium expansum in pear *** results showed that biocontrol efficacy and the population growth of *** harvested from nutrient yeast dextrose broth amended with p-glucan at 0.5%（NYGB） were significantly higher compared to that harvested from nutrient yeast dextrose broth（NYDB）.Moreover,the viability of *** under heat,oxidative and water stress was markedly improved by cultivating in *** addition,the activity of superoxide dismutase in yeast cells was induced after exposure to heat,oxidative and water *** results indicate that the application of(3-glucan might be an effective method to improve the stress tolerances and biocontrol efficacy of *** our knowledge,this is the first report regarding the function of(3-glucan in enhancing various stress tolerances of post-harvest biocontrol yeasts.

关键词： Antagonistic yeast Blue mold Postharvest disease stress tolerance

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