Grass Research最新文献_第2页

Rapid non-destructive testing of smooth bromegrass (Bromus inermis) seed vigour using multispectral imaging 利用多光谱成像技术快速无损检测光滑雀麦种子活力

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2023-0012

Shuangfeng Yang, Shuheng Zhang, Kun Yi, Kai Wei, Hanguo Zeng, Zhicheng Jia, P. Mao, Xu Han, Manli Li

引用次数: 0

The Application of Fourier Transform Infra-Red Spectrometry to Assess the Impact of Changes in Photosynthetic Photon Flux on Cell Wall Components and Turf Quality of Different Cultivars of Cynodon Grasses 傅立叶变换红外光谱法评价光合光子通量变化对不同品种草细胞壁成分和草坪质量的影响

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2023-0009

Christopher W. Brown, Ma Jie, Will Pearce, Vivi Arief, B. Dayananda, C. Lambrides, C. Grof

引用次数: 0

Costs and benefits of hosting Epichloë endophytes: a comparison of three haplotypes in Lolium perenne with contrasting effects on two herbivores 寄存Epichloë内生菌的成本和收益:黑麦草三种单倍型对两种食草动物影响的比较

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2021-0008

A. Popay, N. Cox

引用次数: 1

Inheritance of Summer Stress Tolerance in Tall Fescue 高羊茅夏季抗逆性的遗传

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2023-0014

Trent M. Tate, J. W. Cross, Ruying Wang, S. Bonos, W. Meyer

引用次数: 0

Towards estimating shade response of bermudagrass (Cynodon spp.) using field-based photosynthetic properties 基于田间光合特性估算百慕大草遮荫响应的研究

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2022-0003

Jonathon L. Fox, David Jespersen, L. Baxter, J. Snider, M. V. van Iersel, B. Schwartz

引用次数: 0

Exploring the salt- and drought-tolerant genes of alfalfa through expression library screening strategy 通过表达文库筛选策略探索紫花苜蓿耐盐耐旱基因

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2021-0011

Zhihua Li, Yue Zou, Yanpeng Li, Cancan Sun, Yu Liu, Liwen Cui, Jun Liu, Zhimin Yang, Yu Chen

{"title":"Exploring the salt- and drought-tolerant genes of alfalfa through expression library screening strategy","authors":"Zhihua Li, Yue Zou, Yanpeng Li, Cancan Sun, Yu Liu, Liwen Cui, Jun Liu, Zhimin Yang, Yu Chen","doi":"10.48130/gr-2021-0011","DOIUrl":"https://doi.org/10.48130/gr-2021-0011","url":null,"abstract":"Salinity and drought stress are major abiotic stresses negatively affecting the growth and productivity of alfalfa (Medicago sativa L.). Exploration of genes exhibiting superior tolerance to salinity and drought stress in alfalfa will help aid target molecular breeding and developing tolerant forages. In this study, we adopted a high-efficient yeast FOX hunting system for the identification of salinity and drought tolerant genes in alfalfa. Based on the Gateway-compatible vector system, a high-quality expression library was constructed, containing 1.3 × 107 clones with an average size of 1.44 kb. Through heterologous transformation of mixed library plasmid into salt or drought sensitive yeast mutants, monoclonal resistant strains were screened and tolerant genes were captured. Eighteen salinity-tolerance genes were obtained which were involved in several pathways, containing GRAS and zinc finger transcriptional factors, PP2A interaction module, ERVT vesicle transporter and LETM transmembrane protein. Twelve drought tolerance genes were separated, including ERF and SCL transcriptional factors, CIPK and BSK protein kinases, TGL-type ligase, cPGM and cPDL protease. The mRNA transcription levels of these tolerant genes were inducible or suppressible for response to salt or drought stress conditions following quantitative PCR detection, respectively. Furthermore, heterologous transformation of ERVT and CIPK11 can improve the salt and drought stress tolerance in Arabidopsis, which indicates the conservative function of the screening gene in yeast and Arabidopsis. Obtaining these candidate genes can provide new insights for future research with respect to plant salt and drought tolerance. Citation: Li Z, Zou Y, Li Y, Sun C, Liu Y, et al. 2021. Exploring the saltand drought-tolerant genes of alfalfa through expression library screening strategy. Grass Research 1: 11 https://doi.org/10.48130/GR-2021-0011","PeriodicalId":197485,"journal":{"name":"Grass Research","volume":"10 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":"122751303","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

Growth and physiological effects of chitosan on heat tolerance in creeping bentgrass (Agrostis stolonifera) 壳聚糖对匍匐弯草生长及耐热性的生理影响

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2022-0006

Qiuguo Li, Ruonan Li, Fahui He, Zhimin Yang, Jingjin Yu

{"title":"Growth and physiological effects of chitosan on heat tolerance in creeping bentgrass (Agrostis stolonifera)","authors":"Qiuguo Li, Ruonan Li, Fahui He, Zhimin Yang, Jingjin Yu","doi":"10.48130/gr-2022-0006","DOIUrl":"https://doi.org/10.48130/gr-2022-0006","url":null,"abstract":"High temperature is one of the major abiotic stresses limiting growth and development of cool-season grass species, but chitosan could effectively enhance heat tolerance and improve plant growth. The objective of this study was to determine the optimal concentration of chitosan that could alleviate heat stress in creeping bentgrass ( Agrostis stolonifera ) and investigate the effects of exogenous chitosan on photosynthesis and cell membrane stability under heat stress. Under heat stress (38/28 °C, day/night), different chitosan concentrations of 0, 50, 100 and 500 mg·L −1 were applied on the leaves of creeping bentgrass (cv. 'Penn-A4'). Foliar application of chitosan exhibited the positive effects on plant growth and the optimal concentration was 100 mg·L −1 which significantly improved turf quality, root length, root-shoot ratio as well as shoot and root biomass. Chitosan-treated plants subjected to high temperature stress had a lower decline in photosynthetic rate and photochemical efficiency as well as less increase in electrolyte leakage and malondialdehyde content. The results demonstrate that chitosan-improved heat tolerance as reflected by the superior growth performance of both shoot and root, photosynthesis and cell membrane stability in creeping bentgrass under heat stress.","PeriodicalId":197485,"journal":{"name":"Grass Research","volume":"46 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131873451","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: 3

Endophytic bacteria in grass crop growth promotion and biostimulation 禾本科作物生长促进和生物刺激中的内生细菌

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2021-0005

J. White, X. Chang, K. Kingsley, Qiuwei Zhang, Peerapol Chiaranunt, April Micci, Fernando Velazquez, M. Elmore, Sharron Crane, Shanjia Li, Jiaxin Lu, M. Molina, N. González-Benítez, M. Beltrán-García, K. Kowalski

{"title":"Endophytic bacteria in grass crop growth promotion and biostimulation","authors":"J. White, X. Chang, K. Kingsley, Qiuwei Zhang, Peerapol Chiaranunt, April Micci, Fernando Velazquez, M. Elmore, Sharron Crane, Shanjia Li, Jiaxin Lu, M. Molina, N. González-Benítez, M. Beltrán-García, K. Kowalski","doi":"10.48130/gr-2021-0005","DOIUrl":"https://doi.org/10.48130/gr-2021-0005","url":null,"abstract":"Plants naturally carry microbes on seeds and within seeds that may facilitate development and early survival of seedlings. Some crops have lost seed-vectored microbes in the process of domestication or during seed storage and seed treatment. Biostimulant microbes from wild plants were used by pre-modern cultures to re-acquire beneficial seed microbes. Today some companies have developed or are developing the use of microbes obtained from soils or plant sources to stimulate plant development and growth. Many of these biostimulant microbes are endophytic in plants. Biostimulant products also include humic substances, which appear to function as signal molecules in plants, triggering increased internalization of soil microbes into root cells and tissues. In addition, protein coatings on seeds fuel the growth of seed surface-vectored microbes, increasing microbial activity around and within roots. In this article, we provide evidence of the endophytic nature of many biostimulant microbes, and suggest that many of the beneficial effects of microbial biostimulants stem from their action as endophytes or as participants or stimulants of rhizophagy cycle activity.","PeriodicalId":197485,"journal":{"name":"Grass Research","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":"130103455","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: 13

Root nodule bacteria isolated from lotus uliginosus for future use in phytostabilization of arsenic contaminated soils 从莲藕中分离的根结菌及其在砷污染土壤植物稳定中的应用

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2023-0008

R. Soares, P. Fareleira, B. Colavolpe, O. Ruiz, I. Castro

引用次数: 0

Endophyte Symbiosis: Evolutionary Development, and Impacts of Plant Agriculture 内生菌共生:进化发展及其对植物农业的影响

Grass Research Pub Date : 1900-01-01 DOI: 10.48130/gr-2023-0018

X. Chang, Blair Young, Nicole Vaccaro, Raquele Strickland, W. Goldstein, L. Struwe, J. White

{"title":"Endophyte Symbiosis: Evolutionary Development, and Impacts of Plant Agriculture","authors":"X. Chang, Blair Young, Nicole Vaccaro, Raquele Strickland, W. Goldstein, L. Struwe, J. White","doi":"10.48130/gr-2023-0018","DOIUrl":"https://doi.org/10.48130/gr-2023-0018","url":null,"abstract":"Land plants can absorb soil microbes (bacterial, fungal and algal) into their cells and tissues. Plant endophytes enhance plant growth, stimulate elongation of root hairs, increase branching of roots, allow plants access to more nutrients, and stimulate oxidative stress tolerance. In the rhizophagy cycle, microbes are absorbed from soil directly into plant root cells where nutrients are extracted oxidatively, which provides nutrients to support plant growth. Early land plants lacked true roots, but possessed non-photosynthetic filaments (e.g., caulonemata, rhizoids) that may have cultivated diazotrophic bacteria within their cells as a source of nitrogen, just as bryophyte and pteridophyte rhizoids do today. Extant land plant lineages, such as bryophytes, pteridophytes, gymnosperms, and flowering plants, often produce epidermal structures (e.g., trichomes, papillae, paraphyllia, scales) on their roots, leaves, stems, or thalli; these often contain symbiotic nitrogen-fixing bacteria. Little is understood about how plants interact with soil and plant microbiomes. In this article we present novel endophytic phenomena in diverse lineages of land plants (liverworts, ferns, monocots, and eudicots) and explain how such symbiotic systems might have evolved over hundreds of millions of years. Due to these endophytic and symbiotic systems, land plants have the capability to obtain nutrients from the environment. Cultivation practices used in commercial agriculture can detract from the innate capabilities of plants to use microbes as a source of nutrients and might be harmful to plant health.","PeriodicalId":197485,"journal":{"name":"Grass Research","volume":"47 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":"121539702","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