Article
Plant Sciences
Takaya Tominaga, Luxi Yao, Hikaru Saito, Hironori Kaminaka
Summary: The transcriptional responses during Arum- and Paris-type AM symbioses in tomato plants were compared, revealing both shared and different regulatory mechanisms. Defense response and GA biosynthetic process were upregulated during Paris-type AM symbiosis.
Review
Plant Sciences
Wan Teng Loo, Kah-Ooi Chua, Purabi Mazumdar, Acga Cheng, Normaniza Osman, Jennifer Ann Harikrishna
Summary: Climate change poses severe threats to food security in tropical regions due to their high population density and limited climatic conditions suitable for crops. Legume crops are vital for food security as they provide dietary protein for humans and serve as feed and forage. In addition to legume-associated rhizobia, soil microbes, particularly arbuscular mycorrhizal fungi (AMF), can help mitigate biotic and abiotic stresses, offering a valuable approach to protect crop yields. However, there is limited research on tropical legumes compared to temperate species, necessitating further studies to understand the interaction between AMF and tropical legumes, identify optimal AMF species for agricultural use, and investigate the potential of anaerobic AMF species in mitigating flood stress. International cooperation and support are crucial for realizing the potential of tropical legume crops in ensuring future food security.
Article
Biotechnology & Applied Microbiology
Alex C. Johnson, Thomas H. Pendergast, Srinivasa Chaluvadi, Jeffrey L. Bennetzen, Katrien M. Devos
Summary: This study investigated the effects of arbuscular mycorrhizal symbiosis on miRNA expression in switchgrass. Through miRNA analysis and degradome sequencing, it was found that both upland and lowland genotypes, as well as upland-lowland hybrids, responded to mycorrhizal symbiosis and targets of miRNAs involved in symbiosis were identified. Copper miRNA downregulation was common amongst the different genotypes, and superoxide dismutases and laccases were among the identified targets.
Article
Biochemistry & Molecular Biology
Christopher P. Kasanke, Qian Zhao, Trinidad Alfaro, Christopher A. Walter, Sarah E. Hobbie, Tanya E. Cheeke, Kirsten S. Hofmockel
Summary: Nutrient exchange between land plants and AM fungi is based on symbiosis, and environmental factors and nutrient addition have important impacts on the distribution patterns of AM fungi. Our study found that ecosystem type, rather than nutrient treatment, is the main driver of AM fungal colonization, diversity, and community composition. This research provides evidence for the importance of long-term, large scale studies in understanding nutrient addition effects and ecological context.
Article
Plant Sciences
Chenglei Wang, Karen Velandia, Choon-Tak Kwon, Kate E. Wulf, David S. Nichols, James B. Reid, Eloise Foo
Summary: Plants form mutualistic nutrient-acquiring symbioses with microbes like arbuscular mycorrhizal fungi, and employ a negative feedback loop called autoregulation of mycorrhizae (AOM) to limit the formation of these symbioses. Specific genes like FAB, FIN, and SlCLV2 have been identified as playing roles in negatively regulating arbuscular mycorrhizal formation in tomato. Furthermore, external nutrients such as phosphate and nitrate can strongly suppress arbuscular mycorrhizal formation, with FAB and FIN being required for nitrate suppression but not for phosphate suppression. This suggests a deep homology in the symbiotic role of these genes, potentially forming a common symbiotic toolkit for beneficial plant-microbe interactions.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Philipp Giesemann, Hanne N. Rasmussen, Gerhard Gebauer
Summary: About half of the chlorophyllous Paris-type species tested showed significant carbon enrichment from fungi, with seed plants exhibiting the highest carbon gain. These species are mainly herbaceous perennials thriving on shady forest ground.
Article
Plant Sciences
Marzena Sujkowska-Rybkowska, Anna Lisek, Beata Sumorok, Edyta Derkowska, Magdalena Szymanska, Lidia Sas-Paszt
Summary: The old Zn-Pb-contaminated tailings in southern Poland are colonized by metal-tolerant Anthyllis vulneraria L. plants, which form symbiotic associations with nitrogen-fixing rhizobia and phosphorus-acquiring arbuscular mycorrhizal fungi. The mycorrhizal status and diversity of the fungi in these legumes have been poorly studied. Metal ions accumulate mainly in the nodules and fungal structures in the roots, rather than the plant cell walls. The mycorrhization parameters for the plants in the tailings were significantly higher than those in the non-metallicolous site, indicating a potential role of the unique fungal symbionts in enhancing plant tolerance to heavy metal stress.
Article
Forestry
Dan Du, Stephen J. Livesley, Stefan K. Arndt, Camille Truong, Rebecca E. Miller
Summary: A study found that the use of compost tea did not have a positive effect on the growth and root mycorrhizal colonization of container-grown trees. This suggests that compost tea may not be beneficial for tree growth in a nursery setting, and further research is needed to investigate its potential benefits in urban landscapes.
Article
Plant Sciences
Thomas B. Irving, Sanhita Chakraborty, Sergey Ivanov, Michael Schultze, Kirankumar S. Mysore, Maria J. Harrison, Jean-Michel Ane
Summary: This study characterized the symbiotic phenotypes of four Medicago truncatula mutants and identified two genes, RAM1 and KIN3, involved in mycorrhization. The results showed that RAM1 acts upstream of KIN3 and that KIN3 is involved in suppressing plant defenses and promoting root colonization. KIN3 also plays an essential role in the symbiotic response to soil nitrogen levels.
Article
Environmental Sciences
Dongguang Yang, Li Wang, Fang Ma, Gen Wang, Yongqiang You
Summary: Silver nanoparticles (AgNPs) are harmful to plants, but arbuscular mycorrhizal fungi (AMF) can alleviate their toxicity. Concentration is the main factor influencing the phytotoxicity of AgNPs. Different antioxidant enzymes have different tolerances to AgNPs, and the growth configuration and Ag accumulation and translocation in plants are less affected by AgNPs. AMF inoculation improves plant antioxidant capability and biomass growth, and regulates the root:shoot ratio to cope with AgNP stress.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
Vinicius Rigueiro Messa, Matheus Rodrigues Savioli
Summary: The rhizosphere microbiome can increase crop yields and mitigate diseases and abiotic stress factors through rhizobacteria and mycorrhizae. Modern inoculum-based biotechnology will be more incorporated into common practice, reducing agriculture's environmental impact.
Review
Agronomy
Muhammad Huzaifah Mohd Roslim, Abdul Shukor Juraimi, Nik Norasma Che'Ya, Nursyazyla Sulaiman, Muhammad Noor Hazwan Abd Manaf, Zaid Ramli, Mst Motmainna
Summary: Weeds are unwanted plants that reduce crop yields and need to be controlled; integrating technologies like drones can better manage weed problems; future challenges can be overcome through remote sensing and machine learning approaches.
Article
Microbiology
Romain Darriaut, Livio Antonielli, Guilherme Martins, Patricia Ballestra, Philippe Vivin, Elisa Marguerit, Birgit Mitter, Isabelle Masneuf-Pomarede, Stephane Compant, Nathalie Ollat, Virginie Lauvergeat
Summary: Soil microbiota plays a significant role in the development and health of plants, including grapevines. This study examined the impact of soil microbiological quality and grapevine rootstock genotype on the development of root microbial community in young grapevine plants. The results showed that the soil status and rootstock genotype influenced the colonization of mycorrhizal fungi and the number of microorganisms in the rhizosphere. Fungal diversity and richness were affected by both the soil status and rootstock genotype, while bacterial richness was only influenced by the genotype. Fungal genera associated with grapevine diseases were more abundant in declining soils. The study also found that rootstock genotype influenced the compartmentalization of microbial communities.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Yingying Liu, Wenzhi Cui, Wenguang Li, Shuang Xu, Yuhuan Sun, Guangjian Xu, Fayuan Wang
Summary: Both microplastics (MPs) and cadmium (Cd) are common contaminants in soil-rice systems and their combined effects on rice and soil arbuscular mycorrhizal fungi (AMF) were explored. The study found that MPs can affect Cd accumulation in rice and alter the diversity and structure of AMF in soil.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agriculture, Multidisciplinary
Javiera Nahuelcura, Antonieta Ruiz, Francisca Gomez, Pablo Cornejo
Summary: The study showed that arbuscular mycorrhizal fungi (AMF) adapted to drought conditions have a positive impact on the phenolic composition and antioxidant activities of wheat grains, improving their food quality.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Plant Sciences
Ayyasamy Kowsalya, Karunakaran Rojamala, Thangavelu Muthukumar
Article
Ecology
Perumalsamy Priyadharsini, Thangavelu Muthukumar
Article
Plant Sciences
Thangavelu Muthukumar, Kandasamy Prabha
ACTA BOTANICA CROATICA
(2012)
Article
Plant Sciences
G. Mahendran, V. Muniappan, M. Ashwini, T. Muthukumar, V. Narmatha Bai
ACTA PHYSIOLOGIAE PLANTARUM
(2013)
Article
Plant Sciences
Raji Muthuraja, Thangavelu Muthukumar, Kullaiyan Sathiyadash, Eswaranpillai Uma, Perumalsamy Priyadharsini
AMERICAN FERN JOURNAL
(2014)
Article
Agriculture, Dairy & Animal Science
K. Rajashree, T. Muthukumar, N. Karthikeyan
BRITISH POULTRY SCIENCE
(2014)
Article
Ecology
P. M. Lakshmi, Sarah Jaison, T. Muthukumar, M. Muthukumar
ECOLOGICAL ENGINEERING
(2013)
Article
Mycology
Kullaiyan Sathiyadash, Thangavelu Muthukumar, Shanmugaraj Bala Murugan, Ramalingam Sathishkumar, Radha Raman Pandey
Article
Microbiology
Thangavelu Muthukumar, Kandasamy Prabha
Article
Biodiversity Conservation
E. Uma, T. Muthukumar
SYSTEMATICS AND BIODIVERSITY
(2014)
Article
Microbiology
Muthuraja Raji, Muthukumar Thangavelu
Summary: The study examined the impact of potassium solubilizing bacteria (KSB) from saxicolous habitats on tomato plant growth, showing improved growth parameters and residual potassium content in soils, suggesting potential as a bio-inoculant for enhancing tomato growth in different soil types in sustainable agriculture.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Environmental Sciences
Muthuraja R, Muthukumar T
Summary: Potassium is essential for plant growth, but only a small percentage of it in soil is available to plants. This study isolated potassium solubilizing fungi from saxicolous habitats and screened for their ability to promote plant growth by producing growth hormones, organic acids, and siderophore. Aspergillus species showed promising potential in improving crop growth in different soil types as bio-inoculants.
GEOMICROBIOLOGY JOURNAL
(2021)
Review
Microbiology
Palaniswamy Thangavel, Naser A. Anjum, Thangavelu Muthukumar, Ganapathi Sridevi, Palanisamy Vasudhevan, Arumugam Maruthupandian
Summary: The increasing human population and soil degradation are putting significant pressure on agriculture. Arbuscular mycorrhizal fungi (AMF) play a crucial role in enhancing nutrient uptake in plants and regulating growth and nutrition in various crops. However, there is limited research on the massive inoculation of AMF in food crops, especially in agronomic settings. Further study is needed to explore the potential of AMF in meeting the growing demand for food in stressed environments and minimizing greenhouse gas emissions.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Anatomy & Morphology
Seenu Yuvarani, Shanmugam Karthik, Ravichandran Koshila Ravi, Thangavelu Muthukumar
Summary: The vegetative anatomy of three Elaeocarpus species, Elaeocarpus angustifolius Blume, Elaeocarpus tuberculatus Roxb., and Elaeocarpus variabilis Zmarzty, were analyzed to identify anatomical variations. Significant differences in leaf, petiole, stem, and root anatomical features were observed among the three species, which could be used as markers for species identification.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Anatomy & Morphology
Mayakrishnan Balachandar, Ravichandran Koshila Ravi, Thangavelu Muthukumar
Summary: Gloriosa superba is a plant of great economic importance due to its high medicinal value. This study investigated the anatomical traits of different parts of G. superba, such as the leaf, scale leaf, tendril, stem, tuber, and roots, and identified unique characteristics that can aid in the identification of this species.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)