First report of <i>Globisporangium heterothallicum</i> causing root and crown rot of pepper in Turkey

Özer, Göksel; Türkölmez, Şahimerdan; Çiftçi, Osman

doi:10.5197/j.2044-0588.2020.041.036

Cited by 4 publications

(1 citation statement)

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“…The nation's macroeconomic instability before the onset of the COVID‐19 pandemic was observed through the research conducted by Dervis et al (2020) and Jawad, Naz, Rizwan, et al, (2022). Both the United States and Pakistan, nations heavily dependent on exports, encountered substantial consequences as a result.…”

Section: Introductionmentioning

confidence: 99%

Global economic resilience: Analyzing the diverse impacts of the COVID‐19 pandemic on the US, Pakistan, and the world

Jawad,

Naz

2023

Journal of Public Affairs

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The economic development of a state can be accurately characterized as the measurable changes in macroeconomic indicators that result in an increase in the overall production or output over a specific timeframe, in comparison to the previous period. Several key macroeconomic factors contribute to the advancement of economic growth. These factors include the industrial production, unemployment rate, business Confidence Index, government budget deficit, and the labor force participation rate. The study employed secondary data from January 2016 to August 2023, with a monthly frequency, to estimate the coefficients. The data encompassed the United States, Pakistan, and the rest of the world. The empirical findings indicate that there exists a negative relationship between equality and economic growth in the United States, Pakistan, and other countries worldwide. The findings demonstrate that the global pandemic has had a notable impact on the industrial production of the World, the United States, and Pakistan, with an initial increase followed by a gradual decline. The unemployment rates in the United States, Pakistan, and the rest of the world have experienced a substantial decline. Simultaneously, the rate of unemployment has witnessed a notable increase, resulting in significant and adverse effects on the respective economies. The decrease in the Business Confidence Index can be attributed to heightened levels of uncertainty, which in turn have had a detrimental impact on the gross domestic product of the United States, Pakistan, and other countries worldwide. The reduction in imports has resulted in a decrease in the government budget deficit, which has had a notable impact on the economy.

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Section: Introductionmentioning

confidence: 99%

Global economic resilience: Analyzing the diverse impacts of the COVID‐19 pandemic on the US, Pakistan, and the world

Jawad,

Naz

2023

Journal of Public Affairs

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Characterization and Pathogenicity ofPythium-Like Species Associated with Root and Collar Rot of Kiwifruit in Turkey

et al. 2022

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During the period of June to October in 2018, a widespread decline was observed on kiwifruit vines in the vineyards located in Altınordu, Fatsa, and Perşembe districts of Ordu province. The symptoms were associated with reddish-brown rots expanding from the root to the collar with sparse off-color foliage. Based on the percentage of the total infected samples across 18 vineyards, the most common oomycete species were Globisporangium intermedium (37.1%), Phytopythium vexans (34.3%), G. sylvaticum (14.3%), G. heterothallicum (11.4%), and Pythium dissotocum (2.9%). The morphological identification of isolates was confirmed based on partial DNA sequences containing the nuclear rDNA internal transcribed spacer region (rDNA ITS) and the mitochondrial cytochrome c oxidase subunit II (coxII) gene. The optimum growth temperature and the optimum pH of 5 species ranged from 22.98 to 28.25°C and 5.67 to 8.51, respectively. Pathogenicity tests on the seedlings of kiwifruit cv. Hayward revealed significant differences in virulence among isolates. Phytopythium vexans and G. sylvaticum isolates caused severe root and collar rot resulting in seedling death, while G. heterothallicum and G. intermedium isolates had relatively lower virulence. All Globisporangium spp. and P. vexans isolates significantly decreased plant growth parameters (plant height, shoot and root dry weights and root length); however, P. dissotocum caused very mild symptoms and did not affect these parameters of growth. To our knowledge, this is the first study reporting G. sylvaticum, G. heterothallicum, and G. intermedium causing root and collar rot on kiwifruit not only in Turkey but also in the world.

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Pathogenicity of Oomycete Species to Different Prunus Hybrid Rootstocks

2023

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Diseases caused by soil-borne oomycetes are a limiting factor for the cultivation of Prunus spp., which makes the choice of a suitable rootstock a key factor. The objective of this study was to evaluate the pathogenicity of 12 oomycete species belonging to the genera Globisporangium, Phytophthora (Ph.) and Phytopythium (Pp.) to three Prunus hybrid rootstocks: 'Garnem', 'GF-677' and 'Rootpac-40'. These three rootstocks are widely used to grow stone fruit and almond in the Mediterranean Basin. Pathogenicity tests were conducted using 15 oomycete isolates and 1-year-old rootstock seedlings. Ninety days after inoculation, disease symptoms were evaluated on a severity scale, and the Area Under the Disease Progression Curve and the survival probability of the inoculated seedlings were calculated. Moreover, root dry weight was recorded. All the isolates included in the pathogenicity tests were pathogenic on the rootstock seedlings and were re-isolated from root lesions. Large differences in virulence were detected among the different oomycete species and isolates of Ph. niederhauserii for each rootstock. Phytophthora multivora and Pp. helicoides were generally the most virulent species. The results of the present research offer substantial contribution to increase our knowledge about the pathogenicity of several oomycete species that are frequently isolated in Prunus orchards, and the potential risks that they pose for Prunus spp. crops.

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First report of Globisporangium heterothallicum causing root and crown rot of pepper in Turkey

Cited by 4 publications

References 5 publications

Global economic resilience: Analyzing the diverse impacts of the COVID‐19 pandemic on the US, Pakistan, and the world

Global economic resilience: Analyzing the diverse impacts of the COVID‐19 pandemic on the US, Pakistan, and the world

Characterization and Pathogenicity ofPythium-Like Species Associated with Root and Collar Rot of Kiwifruit in Turkey

Pathogenicity of Oomycete Species to Different Prunus Hybrid Rootstocks

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