Results 31 to 40 of about 11,115 (161)

Anatomical Responses, Cadmium Accumulation and Distribution in Aegiceras corniculatum (L.) Seedlings under Cd Stress [PDF]

open access: yes, 2012
已有的研究表明,植物的根叶结构在调控重金属的吸收、运输和转运上起着重要的作用;同时,进入植物体内的重金属通过与特定的细胞组分结合,可以改变重金属的细胞毒性。有鉴于此,本研究以红树植物桐花树为试验材料,通过光学显微镜、扫描电子显微镜(SEM-EDX)技术,研究了不同Cd浓度处理下(0,0.5,2.5,5mgL-1),桐花树解剖结构对Cd胁迫的响应变化;采用渗透离心法分离亚细胞组分,分析了不同Cd浓度处理下,Cd在桐花树中的亚细胞分布特征 ...
刘涛
core  

Effects of Heterotrophic Ammonia-oxidizing Bacteria on Yield and Water Use Efficiency of Dryland Maize [PDF]

open access: yes
[Objective] To investigate the effects of inoculating heterotrophic ammonia-oxidizing bacteria (HAOB) on yield and water use efficiency of dryland maize. [Methods] A two-year field experiment was conducted in a drought-prone area using HAOB strain S2_8_1
CAO Jiawei   +5 more
core   +1 more source

Restoring Public Trust After a Data Breach Crisis: Reputational Response Strategies for Government, For‐Profit, and Nonprofit Organizations

open access: yesRisk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.
ABSTRACT This article examines how organizations across sectors can reduce reputational damage and rebuild trust among stakeholders after a data breach crisis. While existing research suggests sectoral differences in public trust and reputation, we lack systematic evidence about how sector type may impact organizational responses to crises.
Junghwa Choi   +3 more
wiley   +1 more source

Effects of different types of organic fertilizers on soil, growth and fruiting characteristics, and nut quality in walnut orchards [PDF]

open access: yes
[Objective] The study aimed to explore the effects of different organic fertilizers on the physical and chemical properties of the soil, tree growth, fruiting characteristics, and nut quality in a walnut orchard. [Methods] A randomized block experimental
JIANG Dezhi   +6 more
core   +1 more source

Politicizing Disaster: Examining the Effect of Ideology on Media Framing of the Itaewon Crowd Crush Disaster in South Korea

open access: yesRisk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.
ABSTRACT Using the Itaewon Crowd Crush Disaster as a case study of an emerging large‐scale disaster, we examine how ideology is related to media framing. Emerging large‐scale disasters and crowd crushes are useful for examining the role of ideology in media framing because they do not have the same ingrained ideological biases as other disasters ...
Wesley Wehde, Junghwa Choi, Jae Won Oh
wiley   +1 more source

Sign Language as “Mother Tongue Orphan”: A Challenge to Raciolinguistic Multiculturalism in Singapore

open access: yesAmerican Anthropologist, Volume 127, Issue 3, Page 517-528, September 2025.
ABSTRACT This article examines the contested status of “sign language” in Singapore by exploring deaf people's experiences of the “Mother Tongues”—the state's designation for the official languages of Mandarin, Malay, and Tamil—with a particular focus on the relationships that deaf Chinese Singaporeans have with Mandarin.
Timothy Y. Loh
wiley   +1 more source

对氨基苯甲酸在拟南芥根生长发育中对生长素运输的调控 [PDF]

open access: yes, 2019
为探究对氨基苯甲酸(PABA)影响拟南芥根部生长发育的作用机制,通过以野生型拟南芥和DR5::GUS转基因拟南芥为实验材料,研究了PABA外源处理对根系形态结构和生长素的运输和分布的影响。结果表明:200 μmol/L PABA可以明显抑制拟南芥幼苗主根生长,并促进侧根和根毛的发育。PABA可增强生长素类似物2,4-D对幼苗主根生长抑制的影响,促进根毛伸长;相反,PABA可在一定程度上恢复生长素运输抑制剂NPA对幼苗主根和根毛生长发育的抑制作用。此外,PABA可以诱导拟南芥根尖生长素的积累 ...
宋思扬, 胡鑫, 陶懿
core   +3 more sources

Uncovering the Nanozostera japonica species complex suggests cryptic speciation and underestimated seagrass diversity

open access: yesNew Phytologist, Volume 247, Issue 5, Page 2086-2097, September 2025.
Summary The importance of marine angiosperms, or seagrasses, as foundation species for marine coastal ecosystems is in marked contrast to their low species number of only 70 described taxa. Seagrass species tend to have very similar overall morphologies dictated by hydrodynamic forces of the ocean environment.
Xiaomei Zhang   +14 more
wiley   +1 more source

铜胁迫对海州香薷和紫花香薷根系形态及铜富集的影响

open access: yesShuitu Baochi Xuebao, 2005
通过水培试验,研究了在不同Cu浓度处理条件下海州香薷和紫花香薷根系形态和植物各器官铜含量、累积量间的差异。结果表明:低浓度Cu处理(
田生科 李廷轩 彭红云 杨肖娥 李廷强 Ejaz
doaj  

The effects of drought stress on the stoichiometric characteristics of C, N, and P in Pinus yunnanensis seedlings [PDF]

open access: yes
[Objective] This study aims to investigate the effects of drought stress on the distribution of carbon (C), nitrogen (N), and phosphorus (P) elements and stoichiometry in organs of Pinus yunnanensis seedlings, and to provide a theoretical basis for ...
CHEN Gang   +5 more
core   +1 more source

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