scholarly journals Macrophomina phaseolina: General Characteristics of Pathogenicity and Methods of Control

2021 ◽  
Vol 12 ◽  
Author(s):  
Nathalie Marquez ◽  
María L. Giachero ◽  
Stéphane Declerck ◽  
Daniel A. Ducasse
Keyword(s):  
Soil Moisture ◽  
Natural Resources ◽  
Defense Response ◽  
Root Rot ◽  
Host Plants ◽  
Macrophomina Phaseolina ◽  
Yield Losses ◽  
Seedling Blight ◽  
The World ◽  
Methods Of Control

Macrophomina phaseolina is a generalist soil-borne fungus present all over the world. It cause diseases such as stem and root rot, charcoal rot and seedling blight. Under high temperatures and low soil moisture, this fungus can cause substantial yield losses in crops such as soybean, sorghum and groundnut. The wide host range and high persistence of M. phaseolina in soil as microsclerotia make disease control challenging. Therefore, understanding the basis of the pathogenicity mechanisms as well as its interactions with host plants is crucial for controlling the pathogen. In this work, we aim to describe the general characteristics and pathogenicity mechanisms of M. phaseolina, as well as the hosts defense response. We also review the current methods and most promising forecoming ones to reach a responsible control of the pathogen, with minimal impacts to the environment and natural resources.

scholarly journals Examination of different fungicides against Macrophomina phaseolina in laboratory conditions

2020 ◽  
pp. 65-69
Author(s):  
Kitti Csüllög ◽  
Gábor Tarcali
Keyword(s):  
Host Plants ◽  
Hyphal Growth ◽  
Pathogenic Fungi ◽  
Macrophomina Phaseolina ◽  
Minor Effect ◽  
Efficient Treatment ◽  
The Third ◽  
The World ◽  
A Minor

In Hungary, sunflower is the third most important arable crop, which has a lot of pathogenic fungi. One of these fungi is the Macrophomina phaseolina, which is a well-known fungus in all over the world, since this pathogen has more than 700 host plants. In Hungary, several host plants can be found as well. The M. phaseolina produces microsclerotia, which can survive in the soil and residues for almost 10 years. For now, there is no efficient treatment against this pathogen because of this fungus, since it is extremely resistant and cannot be destroyed easily. The only effective treatment against the fungus is genetic defence. In this study, three different fungicides were tested in vitro against the fungus. The Mirage (prochloraz) seemed to be the most effective fungicide as it completely arrested the hyphal growth. In contrast, the Amistar Xtra (azoxystrobin and ciprochonazol) has only a minor effect on the growth of M. phaseolina. Thirdly, the Retengo (pyrachlostrobin) arrested the hyhpal growth of the fungus with 71% at 100 ppm, in other words, the use of this fungicide seems promising. 

Phoma medicaginis. [Descriptions of Fungi and Bacteria].

2002 ◽  
Author(s):  
G. C. Kinsey
Keyword(s):  
Geographical Distribution ◽  
Root Rot ◽  
Host Plants ◽  
Stem Canker ◽  
Seedling Blight ◽  
Plant Debris ◽  
Wide Range ◽  
Main Host ◽  
Phoma Medicaginis ◽  
Rain Splash

Abstract A description is provided for Phoma medicaginis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Probably an opportunisitic pathogen and saprobe, while var. macrospora is more strongly pathogenic towards M. sativa. Contributory to causing (spring) black stem of forage legumes (mainly Medicago, possibly also Melilotus and Trifolium), involving seedling blight, stem canker, root rot and leaf spot. It develops as long dark lesions on petioles and stems, later encircling whole stems and spreading to cause crown and foot rot. HOSTS: On leaves, petioles, stems, roots and seeds of possibly a wide range of plants. However, many records require verification. The main host plant is Medicago sativa (alfalfa, lucerne), but also recorded on Melilotus and other Papilionaceae, including Arachis, Cicer, Glycine, Lathyrus, Lens, Phaseolus, Pisum, Trifolium, Trigonella, Vicia and Vigna. Non-leguminous host plants include Anacardium, Annona, Beta, Brassica, Chrysanthemum, Curcuma, Cyperus, Fragaria, Juniperus, Lycopersicon, Madhuca, Nicotiana, Phlox, Saccharum, Solanum, Striga, Themeda, Zea and Zinnia. Also reported from soil and indeterminate plant debris and from human scalp. While many records refer only to P. medicaginis s. lat., records for var. macrospora appear to indicate that it occurs more specifically on M. sativa. GEOGRAPHICAL DISTRIBUTION: AFRICA: Egypt, Kenya, Libya, Malawi, Nigeria, Sudan, Zambia, Zimbabwe. NORTH AMERICA: Canada, USA. CENTRAL AMERICA: West Indies. SOUTH AMERICA: Argentina. ASIA: Bangladesh, Bhutan, India, Saudi Arabia, Syria, Thailand. AUSTRALASIA: Australia, New Zealand. EUROPE: Denmark, Great Britain, Italy, Latvia, Netherlands. TRANSMISSION: Soil-borne on plant debris with infection of new plants by rain splash. Probably also seed-borne if pods become infected.

scholarly journals Resistance of Andean beans and advanced breeding lines to root rots in Uganda

1970 ◽  
Vol 28 (3) ◽  
pp. 389-409
Author(s):  
W. Amongi ◽  
F. Kato ◽  
A. Male ◽  
S. Musoke ◽  
S. Sebuliba ◽  
...  
Keyword(s):  
Root Rot ◽  
Central Africa ◽  
Yield Potential ◽  
High Yield ◽  
Yield Losses ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Root Rots ◽  
The World ◽  
High Yield Potential

Root rots cause severe yield losses of up to >70% in common bean (Phaseolus vulgaris L.) in most parts of the world, with devastating effects on the major commercial bean cultivars in East and Central Africa. Increased intensity of droughts and rains, and higher temperatures influence the occurrence and distribution of root rots, resulting in increased epidemics. The causal pathogens tend to occur in a complex, and since most cultivars do not have broad resistance, adverse effects continue to occur. The objective of this study was to evaluate the levels of dual resistance of new breeding lines (BL) developed for root rot resistance, as well as Andean (ADP) genotypes, for resistance to Fusarium (FRR) and Pythium root rots (PRR). Altogether, 316 new BL developed for root rot resistance and 295 ADP bean genotypes were evaluated at Kawanda in Uganda. There were significant differences (P<0.05) among genotypes for both root rots and yield. Thirty and 1.9 percent of the BL and ADP genotypes expressed resistance to both root rots. In addition, more than 80% of ADP genotypes showed susceptibility to both root rots. Yield was generally poor with means of 458 kg ha-1 for ADP, and ranging from 949 to 1075 kg ha-1 for the BL groups. Nonetheless, the 0.3 and 2.4% of the ADP and BL that yielded >2000 kg ha-1 expressed high yield potential, considering that majority of the genotypes yielded below 1000 kg ha-1.

Peran Pengawasan Internal Dalam Menghindari Kutukan Sumber Daya Alam

Liquidity ◽  
2016 ◽  
Vol 5 (1) ◽  
pp. 1-9
Author(s):  
Andilo Tohom
Keyword(s):  
Natural Resources ◽  
Internal Audit ◽  
Rent Seeking ◽  
Rich Country ◽  
Literature Study ◽  
Indonesian Government ◽  
The World ◽  
Policies And Programs ◽  
The Right

Indonesia is one of many countries in the world so called resource-rich country. Natural resources abundance needs to be managed in the right way in order to avoid dutch diseases and resources curses. These two phenomena generally happened in the country, which has abundant natural resources. Learned from Norwegian experiences, Indonesian Government need to focus its policy to prevent rent seeking activities. The literature study presented in this paper is aimed to provide important insight for government entities in focusing their policies and programs to avoid resources curse. From the internal audit perspective, this study is expected to improve internal audit’s role in assurance and consulting.

Infections of bean plant and field soil are linked to region, root rot pathogen, and agro-ecosystem

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
B. Naseri ◽  
M. Gheitury ◽  
M. Veisi
Keyword(s):  
Root Rot ◽  
Multivariate Analyses ◽  
Control Method ◽  
Control Strategies ◽  
Fusarium Species ◽  
Macrophomina Phaseolina ◽  
Soil Variables ◽  
Plant Infection ◽  
Pathogen Prevalence ◽  
Soil Infestation

SummaryUnderstanding pathogen-agrosystem interaction is particularly essential when applying a control method to minimize pathogen prevalence prior to plant infection. To meet this requirement, frequency of major root rot pathogens isolated from bean root and seed, and their soil populations were examined in farmers’ fields. Multivariate analyses evidenced more frequent isolations of Fusarium solani and Rhizoctonia solani from root and seed compared to Macrophomina phaseolina and Fusarium oxysporum. Two Fusarium species had denser soil populations than R. solani and M. phaseolina. More frequent isolations of pathogens were detected in root and seed collected from Abhar and Khodabandeh compared to Kheirabad region. Agronomic and soil variables corresponded less closely to root infections compared to soil infestation and seed infections. Bean market class, herbicide application, and planting depth were linked to root, seed and soil infestations. Such information provides a basis for increased confidence in choosing appropriate control strategies for a pathogen and region in sustainable agriculture.

نُدرة الموارد وعلاقتها بالبيئة من وجهة نظر إسلاميّة The Issue of Scarcity of Resources and Its Relationship to the Environment

2014 ◽  
Vol 11 (1) ◽  
pp. 01
Author(s):  
حسن بن إبراهيم الهنداوي (Hassan Hendawi)
Keyword(s):  
Natural Resources ◽  
Human Existence ◽  
Economic Resources ◽  
Human Beings ◽  
Human Needs ◽  
Modern Economy ◽  
The People ◽  
The World ◽  
Scarcity Of Resources ◽  
Economic Dilemma

الملخّصإنّ الفقر والإملاق من المشكلات الرئيسة التي يواجهها العالم اليوم، ومن أسبابها ندرة الموارد الاقتصادية الشديدة وندرة الغذاء والماء. فندرة الموارد وقلتها كانت ذات أثر مباشر في قتل الملايين من الأنفس البشريّة. وتعدّ ندرة الموارد عند الاقتصاديين الخطر الأساس الذي يهدد الوجود البشري في هذا العصر. ويعتبرها الاقتصاديّون كذلك معضلة اقتصادية ناتجة عن رغبات الإنسان غير المتناهية مقابل موارد محدودة ومتناهية. ومن الأمور التي يقترحها الاقتصاديون من اجل التغلب على هذه المشكلة أن النّاسن ينبغي عليهم أن يختاروا الموارد الضرورية والحاجية لتلبية رغباتهم. فمفهوم الندرة من منظور الاقتصاد التقليدي يعني موارد محدودة في العالم مقابل حاجات ورغبات غير محدودة. وسبب ذلك عند الاقتصاديين أن الطبيعة لا توفر موارد كافية لتلبية حاجات الناس ورغباتهم غير المتناهية. ونظرة الإسلام التي يمثلها القرآن الكريم والسنة النبوية الشريفة لمسألة الندرة نظرة مختلفة تماما عن نظرة الاقتصاد التقليدي. ويعنى هذا البحث ببيان أن الندرة ليست مشكلة الطبيعة التس سخّرها الله تعالى للإنسان،  ولكن المشكلة في أخلاقيات الناس وتصرفاتهم في الموارد الطبيعية وطريقتهم في الانتفاع بها التي أدت إلى إدخال الضرر والفساد على الموارد الموجودة.الكلمات المفتاحية: الإسلام، ندرة الموارد، الاقتصاد المعاصر، الموارد الطبيعية، الطبيعة. **************************************               AbstractAmong the main problems that the world is facing today are poverty and destitution caused by severe scarcity of economic resources and the scarcity of food and water. The lack of resources has already caused the death of millions of human beings. The scarcity of resources is counted by economists as the primary danger that threatens the human existence. Economists also consider it an economic dilemma caused by infinite human desires against limited and finite resources. In order to overcome this problem among the suggestions made by economists is that human beings should choose only necessary resources to satisfy their desires. The conventional concept of scarcity is that the resources in the world are limited vis-à-vis the unlimited human needs and desires. The reason for that according to economists is that the nature does not provide sufficient resources to meet people’s endless needs and desires. Islamic approach as represented by the Holy Qur’an and the Sunnah to the issue of scarcity is essentially different from the conventional viewpoint of economists. This paper proposes and explains that the problem is not in the nature which Allah has made subservient to man, but it is in the ethics of the people and their behaviour and way of utilization of natural resources, which ultimately damage and corrupt the available resources.Keywords: Islam, Scarcity of Resources, Modern Economy, Environmental Resources, Nature.

Beritakan Injil Kepada Segala Makhluk

2018 ◽  
Vol 1 (1) ◽  
pp. 56-69
Author(s):  
Ibelala Gea
Keyword(s):  
Natural Resources ◽  
Human Behavior ◽  
Great Commission ◽  
The World ◽  
The Dead

This article aims to describe the results of research on how to preach the gospel to all beings, based on Mark 16:15-16. Preaching the gospel is a great commission from the Lord Jesus to His followers after His resurrection from the dead. The world is the address of the gospel preaching, not only to man but to all beings.The Gospel writer of  Mark wants to explain that the world is synonymous with evil, therefore the gospel serves to salt the evil world, so when Iniil is preached to the wicked, it is expected to change the mindset and human behavior.Greedy and greedy human behavior that only views nature as a commodity. Human evil is seen when only the task of exploiting natural resources and forget the responsibility of caring for, nurturing nature and the environment. Gospel preaching aims to awaken peoples not only to view nature as power (dominio) but as a fellow of creatures, and friends (communio). Preach the gospel to all beings and receiving each other with referring to reduce, reuse, recycle and replace as a responsibility to God who has given the mandate for us. AbstrakArtikel ini bertujuan untuk mendeskripsikan hasil penelitian tentang bagaimana memberitakan Injil kepada  seluruh makhluk, bertolak dari Markus 16:15-16. Memberitakan Injil adalah amanat agung dari Tuhan Yesus kepada para pengikut-Nya setelah kebangkitan-Nya dari antara orang mati.Dunia adalah sebagai alamat pemberitaan Injil, bukan hanya kepada manusia melainkan kepada segala makhluk. Penulis Injil Markus hendak menjelaskan bahwa dunia identik dengan kejahatan, sebab itu Injil berfungsi menggarami dunia yang penuh kejahatan itu, karena itu ketika Iniil diberitakan kepada orang-orang jahat, diharapkan akan mengubah mindset dan perilaku manusia. Perilaku manusia yang serakah dan tamak yang hanya memandang alam sebagai komoditi. Kejahatan manusia terlihat ketika hanya bertugas mengeksploitasi sumber-sumber daya alam dan lupa pada tanggung jawab merawat, memelihara alam dan lingkungan hidupnya.  Pemberitaan Injil menyadarkan manusia agar tidak hanya memandang alam sebagai kekuasaan (dominio) tetapi sebagai sesama ciptaan, sahabat yang bersifat communio. Memberitakan Injil kepada seluruh makhluk dan menghargai segala makhluk dengan saling memberi dan menerima dengan mengacu pada pola-pola reduce, reuse, recycle dan replace sebagai tanggung jawab kepada Tuhan yang telah memberi amanat.

The Challenges of Implementing E-Commerce in Kurdistan of Iraq

2016 ◽  
Vol 2 (3) ◽  
pp. 528
Author(s):  
Ako Abubakr Jaffar ◽  
Mazen Ismaeel Ghareb ◽  
Karzan Hussein Sharif
Keyword(s):  
Middle East ◽  
Natural Resources ◽  
Online Shopping ◽  
Deep Understanding ◽  
The Other ◽  
Regional Government ◽  
Security Measures ◽  
Unique Region ◽  
Government Organizations ◽  
The World

The Retailers all over the world are prospering from the burgeoning trend of online shopping. Kurdistan Regional Government is still struggling to grow its e-commerce markets. On the other hands e-commerce in Various countries in the Middle East have some of the world’s highest internet and mobile penetration rates. Alternative payments methods are quickly expanding, and having access to some of the world’s most coveted natural resources that allows countries in their region to have some of the highest GDP in the world. There are several challenges prevalent in the KRG Region market that will require international merchants to develop strategies based on innovation and vigilance. This unique region is plagued with complications many other countries have little to no experience with e-commerce, which highlights the need for retailers to have a deep understanding as to how this region operates before they can begin finding solutions. One of the biggest concerns today's consumers have is the risk of fraud when they are shopping online. With highly sophisticated malware and perceptive cybercriminals, customers' card and bank information can easily be stolen if a merchant does not take the proper security measures. In this paper we summarize all challenges need to be addressed in KRG in order to make correct steps to apply e-commerce in KRG. Finally, the recommendations and framework are proposed for e-commerce to encourage government, organizations, and people to take advantages from e-commerce.

scholarly journals Unraveling the Metabolite Signature of Endophytic Bacillus velezensis Strain Showing Defense Response Towards Fusarium oxysporum

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 683
Author(s):  
Yang Cao ◽  
Wei Ding ◽  
Chang Liu
Keyword(s):  
Fusarium Oxysporum ◽  
Inhibitory Activity ◽  
Defense Response ◽  
Endophytic Bacteria ◽  
Rice Seedling ◽  
Seedling Blight ◽  
Bacillus Velezensis ◽  
Secondary Bile Acid ◽  
Pathogen Inhibition

Seedling blight, caused by the fungus Fusarium oxysporum, significantly lowers rice production globally. Earlier reports have opined that endophytic bacteria strains could be possible biocontrol agents, but the mechanistic actions involved are still unclear. Therefore, this study aimed to isolate the endophytic bacteria with high inhibitory activity and elucidate its possible mechanisms for inducing resistance by metabolomics. The results showed that mdj-36 had the strongest in vitro pathogen inhibition of F. oxysporum, while mdj-34 displayed the lowest inhibitory activity identified as Bacillus velezensis strains. Metabolomic analyses demonstrated that B. velezensis mdj-36 growth medium could produce higher organic acids, terpenes, and diterpene than B. velezensis mdj-34. Further investigation revealed that ‘secondary bile acid biosynthesis’ and ‘glycerophospholipid metabolism’ pathways played essential roles in defense response towards F. oxysporum. This study’s findings provide a credible theoretical basis for the possible use of the B. velezensis strain against rice seedling blight.

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