Biochemical and physiological changes in maize plants supplied with silicon and infected by Exserohilum turcicum

2021 ◽  
Author(s):  
Patricia Ricardino Silveira ◽  
Carlos Eduardo Aucique‐Pérez ◽  
Maria Fernanda Antunes Cruz ◽  
Fabrício Ávila Rodrigues
Keyword(s):  
Physiological Changes ◽  
Exserohilum Turcicum ◽  
Maize Plants

scholarly journals Assessment of physiological races of Exserohilum turcicum isolates from maize in Argentina and Brazil

2021 ◽  
Author(s):  
Barbara Ludwig Navarro ◽  
Lucia Ramos Romero ◽  
María Belén Kistner ◽  
Juliana Iglesias ◽  
Andreas von Tiedemann
Keyword(s):  
Exserohilum Turcicum ◽  
Breeding Programs ◽  
Physiological Races ◽  
Maize Leaves ◽  
Race 1 ◽  
Resistance Reaction ◽  
Qualitative Resistance ◽  
Maize Plants ◽  
Corn Leaf Blight ◽  
Resistant Genotypes

AbstractNorthern corn leaf blight (NCLB) is one of the most important diseases in maize worldwide. It is caused by the fungus Exserohilum turcicum, which exhibits a high genetic variability for virulence, and hence physiological races have been reported. Disease control is based mainly on fungicide application and host resistance. Qualitative resistance has been widely used to control NCLB through the deployment of Ht genes. Known pathogen races are designated according to their virulence to the corresponding Ht gene. Knowledge about of E. turcicum race distribution in maize-producing areas is essential to develop and exploit resistant genotypes. Maize leaves showing distinct elliptical grey-green lesions were collected from maize-producing areas of Argentina and Brazil, and 184 monosporic E. turcicum isolates were obtained. A total of 66 isolates were collected from Argentina during 2015, 2018 and 2019, while 118 isolates from Brazil were collected during 2017, 2018 and 2019. All isolates were screened on maize differential lines containing Ht1, Ht2, Ht3 and Htn1 resistance genes. In greenhouse experiments, inoculated maize plants were evaluated at 14 days after inoculation. Resistance reaction was characterized by chlorosis, and susceptibility was defined by necrosis in the absence of chlorosis. The most frequent race was 0 in both Argentina (83%) and Brazil (65%). Frequencies of race 1 (6% and 24%) and race 23N (5% and 10%) were very low in Argentina and Brazil, respectively. The high frequency of race 0 isolates provides evidence that qualitative resistance based on the tested Ht genes is not being used extensively in Argentina and Brazil to control NCLB. This information may be relevant for growers and breeding programs as the incidence of NCLB is increasing in both countries.

scholarly journals Biochemical parameters and physiological changes in maize plants submitted to water deficiency

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Mara Lúcia Cruz de Souza ◽  
Cintia da Silva Alves Zappavigna Starling ◽  
Luz Maria Ruiz Machuca ◽  
Enrique Alonso Zuñiga ◽  
Ícaro Monteiro Galvão ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Physiological Changes ◽  
Water Deficiency ◽  
Maize Plants

Inducing Unconscious Stress

2020 ◽  
Vol 34 (3) ◽  
pp. 192-201
Author(s):  
Melanie M. van der Ploeg ◽  
Jos F. Brosschot ◽  
Markus Quirin ◽  
Richard D. Lane ◽  
Bart Verkuil
Keyword(s):  
Repeated Measures ◽  
Activity Patterns ◽  
Physiological Changes ◽  
Implicit Measures ◽  
Prime Word ◽  
Student Sample ◽  
Priming Task ◽  
Subject Design ◽  
The Relationship ◽  
Stress And Health

Abstract. Stress-related stimuli may be presented outside of awareness and may ultimately influence health by causing repetitive increases in physiological parameters, such as blood pressure (BP). In this study, we aimed to corroborate previous studies that demonstrated BP effects of subliminally presented stress-related stimuli. This would add evidence to the hypothesis that unconscious manifestations of stress can affect somatic health. Additionally, we suggest that these findings may be extended by measuring affective changes relating to these physiological changes, using measures for self-reported and implicit positive and negative affectivity. Using a repeated measures between-subject design, we presented either the prime word “angry” ( n = 26) or “relax” ( n = 28) subliminally (17 ms) for 100 trials to a student sample and measured systolic and diastolic BP, heart rate (HR), and affect. The “angry” prime, compared to the “relax” prime, did not affect any of the outcome variables. During the priming task, a higher level of implicit negative affect (INA) was associated with a lower systolic BP and diastolic BP. No association was found with HR. Self-reported affect and implicit positive affect were not related to the cardiovascular (CV) activity. In sum, anger and relax primes elicited similar CV activity patterns, but implicit measures of affect may provide a new method to examine the relationship between (unconscious) stress and health.

Nutrient transfer between the root zones of soybean and maize plants connected by a common mycorrhizal mycelium

1991 ◽  
Vol 82 (3) ◽  
pp. 423-432 ◽  
Author(s):  
Gabor J. Bethlenfalvay ◽  
Maria G. Reyes-Solis ◽  
Susan B. Camel ◽  
Ronald Ferrera-Cerrato
Keyword(s):  
Nutrient Transfer ◽  
Root Zones ◽  
Maize Plants

Altitude acclimatization: plasma AVP response and physiological changes

2013 ◽  
pp. 1-1
Author(s):  
Meenakshi Sachidhanandam ◽  
Salthan Ashok Kumar ◽  
Som Nath Singh ◽  
UdaySankar Ray
Keyword(s):  
Physiological Changes ◽  
Altitude Acclimatization

Key facts on moderate to severe acute pain combined treatment with tramadol and dexketoprofen at fixed doses

2020 ◽  
Vol 13 (3) ◽  
pp. 304-310
Author(s):  
Jarosław Woroń
Keyword(s):  
Quality Of Life ◽  
Treatment Adherence ◽  
Acute Pain ◽  
Pain Treatment ◽  
Combined Treatment ◽  
Physiological Changes ◽  
Physiological Mechanisms ◽  
Pain Mechanisms ◽  
Proven Efficacy

The development of pain is associated with numerous physiological mechanisms. Improper acute pain treatment significantly reduces the quality of life and leads to a number of physiological changes that adversely affect the general condition of the patient. In many cases, inadequate analgesic therapy results in the transition from acute to chronic pain. For this reason, it is extremely important to use drugs that synergistically affect various pain mechanisms. Combined preparations, including the combination of tramadol and dexketoprofen, are very effective. This combination has many advantages, including proven efficacy and tolerability, ensures better treatment adherence and is easy to administer.

Analisis Penatalaksanaan Fluor Albus Pada Remaja Putri Kelas X Di MA Al-Fatimah Bojonegoro Tahun 2016

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Fela Putri Hariastuti ◽  
Andin Ajeng Rahmawati
Keyword(s):  
Qualitative Research ◽  
Adolescent Girls ◽  
Young Women ◽  
Sexual Development ◽  
Primary Data ◽  
Physiological Changes ◽  
Hormonal Activity ◽  
Research Subjects ◽  
Teenage Girls ◽  
The Central Nervous System

ABSTRAK            Masa remaja mengalami perkembangan fisiologis, psikososial, kognitif, moral dan perkembangan seksual. Perubahan fisiologis pada masa remaja merupakan hasil aktivitas hormonal dibawah pengaruh sistem saraf pusat. Menarche pada umumnya menjadi masalah bagi remaja, hal ini terjadi karena remaja masih belum tahu tentang apa itu menstruasi dan bagaimana menanganinya, sehingga kebersihan daerah genetalia tidak terjaga dan dapat menimbulkan terjadinya keputihan (Soetjiningsih, 2007).            Penelitian ini bertujuan untuk mengetahui penatalaksanaan flour albus pada remaja putri kelas X di SMA AL-Fatimah Bojonegoro tahun 2016. Jenis penelitian ini adalah kualitatif yaitu penelitian expose facto (mengungkap fakta) dengan pendekatan pengukuran secara langsung dengan menggunakan data primer. Subjek penelitian semua remaja putri kelas X yang mengalami keputihan di MA AL- Fatimah Kecamatan Bojonegoro Kabupaten Bojonegoro tahun 2016 yang berjumlah 30 responden.            Hasil penelitian yang didapatkan sebanyak 25 responden remaja putri sudah bisa melaksanakan penatalaksanaan pada flour albus. Kata Kunci : flour albus,  remaja putri ABSTRACT            Adolescence develops physiological, psychosocial, cognitive, moral and sexual development. Physiological changes in adolescence are the result of hormonal activity under the influence of the central nervous system. Menarche is generally a problem for teenagers, this is because teenagers still do not know what menstruation is and how to handle it, so that the cleanliness of the genetalia area is not maintained and can lead to whitish (Soetjiningsih, 2007).This study aims to determine the management of flour albus in adolescent girls of class X in SMA AL-Fatimah Bojonegoro in 2016. The type of this research is qualitative research that is expose facto (revealing fact) with approach of measurement directly by using primary data. Research subjects of all teenage girls of class X who experienced whiteness in MA Al-Fatimah Bojonegoro District Bojonegoro District in 2016, amounting to 30 respondents.The results obtained as many as 25 female teenage respondents have been able to implement management on flour albus. Keywords: flour albus, young women

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