Article
Soil Science
Sonam Antil, Rakesh Kumar, D. V. Pathak, Anil Kumar, Anil Panwar, Anju Kumari
Summary: The study identified two plant growth-promoting rhizospheric bacteria (PGPR) strains, KMT-5 and KMT-8, as potential biological control agents against root-knot nematodes. These strains showed various growth-promoting attributes and exhibited significant inhibitory effects on the nematode population. In laboratory, greenhouse, and field experiments, both strains effectively suppressed nematode infestation, improved plant growth, and increased crop yield.
APPLIED SOIL ECOLOGY
(2022)
Article
Multidisciplinary Sciences
Marta Nunes da Silva, Carla S. Santos, Ana Cruz, Adrian Lopez-Villamor, Marta W. Vasconcelos
Summary: Chitosan can enhance pine tolerance to pinewood nematode by modulating the plant's antioxidant system, resulting in reduced nematode population and increased levels of related compounds.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Arnoldo Wong-Villarreal, Erick Williams Mendez-Santiago, Olga Gomez-Rodriguez, Liliana Aguilar-Marcelino, Daniel Cerqueda Garcia, Jose Q. Garcia-Maldonado, Victor M. Hernandez-Velazquez, Gustavo Yanez-Ocampo, Saul Espinosa-Zaragoza, Sandra I. Ramirez-Gonzalez, Diana Sanzon-Gomez
Summary: The endophytic strain of Serratia sp. showed nematicidal activity in chili plants, significantly reducing nematode penetration and reproduction. The genome analysis revealed genes related to biocontrol of nematodes. This is the first report of Serratia ureilytica with nematicidal activity, suggesting its potential as an alternative biocontrol agent for Nacobbus aberrans in chili cultivation.
Review
Microbiology
David Pires, Claudia S. L. Vicente, Esther Menendez, Jorge M. S. Faria, Leidy Rusinque, Maria J. Camacho, Maria L. Inacio
Summary: This article reviews the potential of bacterial and fungal agents in suppressing the most important plant-parasitic nematodes, which pose a significant threat to global food security and plant health. With restrictions on the use of chemical control methods, alternative control strategies are urgently needed.
Article
Plant Sciences
Il-Hwan Lee, Ho Soo Kim, Ki Jung Nam, Kang-Lok Lee, Jung-Wook Yang, Sang-Soo Kwak, Jeung Joo Lee, Donghwan Shim, Yun-Hee Kim
Summary: The study identified differences in defense responses between susceptible and resistant sweetpotato cultivars infected with root-knot nematode, with induced defense pathways varying between the two types of cultivars. Key genes related to receptor protein kinase signaling and protein phosphorylation were induced in resistant cultivars, while genes related to defense and secondary metabolites were induced in susceptible cultivars during induced defense. Additionally, genes involved in proteolysis and biotic stimuli showed differential expression levels between the two types of cultivars during constitutive defense. This research provides valuable insights into the transcriptional changes in sweetpotato genes during defense responses against RKN infection.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Valter Cruz-Magalhaes, Rafaela A. Guimaraes, Julio C. P. da Silva, Amanda F. de Faria, Marcio P. Pedroso, Vicente P. Campos, Phellippe A. S. Marbach, Flavio H. de Medeiros, Jorge T. De Souza
Summary: Bacillus strains BMH and INV, closely related to Bacillus velezensis, individually reduced the number of galls and eggs of M. incognita by more than 90% in tomato roots. However, when combined (BMH + INV), the suppression of RKN and tomato growth was lower compared to single-strain applications.
PEST MANAGEMENT SCIENCE
(2022)
Article
Plant Sciences
Marcos Fernando Basso, Isabela Tristan Lourenco-Tessutti, Clidia Eduarda Moreira-Pinto, Reneida Aparecida Godinho Mendes, Debora Goncalves Pereira, Adriana Grandis, Leonardo Lima Pepino Macedo, Amanda Ferreira Macedo, Ana Cristina Meneses Mendes Gomes, Fabricio Barbosa Monteiro Arraes, Roberto Coiti Togawa, Marcos Mota do Carmo Costa, Francismar Correa Marcelino-Guimaraes, Maria Cristina Mattar Silva, Eny Iochevet Segal Floh, Marcos Silveira Buckeridge, Janice de Almeida Engler, Maria Fatima Grossi-de-Sa
Summary: The overexpression of the GmEXPA1 gene in soybean reduces susceptibility to root-knot nematodes by increasing root lignification. Transgenic lines of Arabidopsis thaliana and Nicotiana tabacum overexpressing GmEXPA1 showed reduced susceptibility to the nematode, without affecting plant growth or yield. The transgenic lines of tobacco also exhibited upregulation of genes involved in ethylene and lignin biosynthesis, along with higher lignin content.
PLANT CELL REPORTS
(2023)
Article
Plant Sciences
Fernando Evaristo Diaz-Manzano, Deisy X. Amora, Angela Martinez-Gomez, Lars Moelbak, Carolina Escobar
Summary: Root-knot nematodes are significant pests for agriculture worldwide, and biological control is a potential alternative for their management. This study evaluated the effectiveness of a dual-strain bacteria combination (FMCH001 and FMCH002) in reducing nematode infection in tomato plants. The results showed that the combination had nematicidal properties, inhibiting nematode egg-hatching, larval survival, and attractiveness to the roots. It also interfered with giant cell development, leading to a reduction in nematode reproduction.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Osmar Vieira de Carvalho Junior, Alicia Vieira de Sa, Ana Rosa Peixoto, Cristiane Domingos da Paz, Jose Mauro da Cunha e Castro, Carlos Alberto Tuao Gava
Summary: Biological control using Bacillus species shows potential in inhibiting nematodes. Experimental results suggest that certain Bacillus isolates have nematostatic and nematicidal effects, indicating a possible future strategy for nematode management through biocontrol. Further studies are needed to explore the full potential of this approach.
BIOCONTROL SCIENCE AND TECHNOLOGY
(2022)
Article
Plant Sciences
Divykriti Chopra, M. Shamim Hasan, Christiane Matera, Oliver Chitambo, Badou Mendy, Sina-Valerie Mahlitz, Ali Ahmad Naz, Shelly Szumski, Slawomir Janakowski, Miroslaw Sobczak, Axel Mithoefer, Tina Kyndt, Florian M. W. Grundler, Shahid Siddique
Summary: Reactive oxygen species (ROS) generated in response to infections activate immune responses in eukaryotes including plants. Rbohs, primarily produced by plants, can also promote infection by certain pathogens such as cyst nematodes. Genetic and biochemical analyses identified WAT1 as a downstream target of Rboh-mediated ROS during parasitic infections, crucial for successful establishment of the parasite. This work clarifies a unique mechanism by which cyst nematodes utilize host's ROS for their own benefit.
Article
Plant Sciences
Alexandre F. S. Mello, Gabriela Silva, Raquel L. de Sousa, Alexandre V. S. Barbosa, Erich Y. T. Nakasu, Giovani O. Silva, Danielle Biscaia, Jadir B. Pinheiro
Summary: This study assessed the resistance of two sweetpotato clones and four commercial sweetpotato genotypes to three different Meloidogyne species, and found that 'CIP BRS Nuti' and 'Canadense' are the first South American commercial cultivars with triple nematode resistance.
Article
Plant Sciences
Josselin Montarry, Benjamin Mimee, Etienne G. J. Danchin, Georgios D. Koutsovoulos, Dave T. Ste-Croix, Eric Grenier
Summary: Plant-parasitic nematodes are a significant burden on crop production, and population genetics plays a key role in understanding their life strategies. Advances in high-throughput sequencing technologies have facilitated rapid development in genomic analyses of plant-parasitic nematodes.
Article
Plant Sciences
Pasqua Veronico, Nicola Sasanelli, Alberto Troccoli, Arben Myrta, Audun Midthassel, Tariq Butt
Summary: Fungal volatile organic compounds (VOCs), particularly 1-Octen-3-ol, are highly toxic to root-knot nematodes and show potential as ecofriendly alternatives to synthetic nematicides. Exposure to 1-Octen-3-ol and 3-Octanone resulted in high mortality rates of the nematodes, with 1-Octen-3-ol exhibiting greater nematicidal activity than 3-Octanone.
Article
Agriculture, Multidisciplinary
Augustine T. Zvinavashe, Ilham Mardad, Manal Mhada, Lamfeddal Kouisni, Benedetto Marelli
Summary: New technologies are being sought to enhance soil biodiversity and increase crop production while reducing the use of scarce resources to mitigate threats posed by climate change, population growth, and desertification. Challenges still remain in facilitating the delivery of plant-growth-promoting bacteria in the soil, including survival, precise delivery, competition with indigenous soil microorganisms, and soil structure.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Plant Sciences
Leidy Rusinque, Filomena Nobrega, Laura Cordeiro, Clara Serra, Maria L. Inacio
Summary: Potato is the third most important crop worldwide, with Meloidogyne luci, a tropical root-knot nematode, being detected parasitizing potato for the first time in the Azores islands of Portugal. Detailed characterization through morphological, biochemical, and molecular analysis was conducted, providing valuable information on the distribution of this plant-parasitic nematode.
Review
Plant Sciences
Kanika Khanna, Pankaj Kumar, Puja Ohri, Renu Bhardwaj
Summary: This article mainly discusses factors related to the nature and distribution of selenium in ecosystems, including its sources, speciation, toxicity, biogeochemical cycle, bioavailability, resistance, and detoxification mechanisms in plants and microbes. Through this review, we have provided significant insights for the development of effective regulatory methods for selenium within ecosystems and summarized the prospects of selenium biofortification in improving agricultural practices and coping with selenium deficiencies in living cells.
PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Kanika Khanna, Puja Ohri, Renu Bhardwaj
Summary: Plants have developed an extensive defence system to protect themselves under severe environmental conditions. Sugars play a crucial role in stress perception and signalling, as well as in osmotic adjustments, ROS scavenging and cellular homeostasis. Sugar transporters are involved in sugar loading/unloading and long-distance transport, contributing to stress tolerance and crop productivity improvement.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Review
Plant Sciences
Sukhmeen Kaur Kohli, Harsimran Kaur, Kanika Khanna, Neha Handa, Renu Bhardwaj, Joerg Rinklebe, Parvaiz Ahmad
Summary: Industrialization and urbanization have led to an increase in metalloid stressors in the environment, causing concerns for human and environmental health. Boron is an essential element for plant growth and its bioavailability in soil and water is crucial for crop productivity. This review discusses the mechanisms of boron uptake and translocation in plants under optimal and limiting conditions, as well as various strategies to enhance boron influx in plants. Additionally, it explores the biological potential of boron in plants and the mechanisms underlying increased tolerance to boron deficiency conditions, providing insights into boron accumulation and its role in plants.
PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Sadaf Jan, Bhupender Singh, Renu Bhardwaj, Rattandeep Singh, Sheikh Mansoor, Parvaiz Ahmad
Summary: Melatonin, derived from tryptophan, is a conserved domain found in various organisms. It plays a crucial role in plant development and stress responses. Melatonin acts as a multi-regulatory substance by regulating the transcription of many genes. Although research on melatonin in plants is still in its early stages, it is important to further study its potential in biochemical and physiological processes, stress response, detoxification mechanisms, and other beneficial effects. Melatonin acts as an antioxidant by scavenging reactive nitrogen species (RNS) and reactive oxygen species (ROS), and it also activates enzymes involved in ROS detoxification. This comprehensive review focuses on the protective mechanisms of melatonin against abiotic stress in plants and highlights its potential in crop research.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Nudrat Aisha Akram, Rohina Bashir, Gulshan Ashraf, Shehnaz Bashir, Muhammad Ashraf, Mohammed Nasser Alyemeni, Andrzej Bajguz, Parvaiz Ahmad
Summary: The present study aimed to improve drought stress tolerance in eggplant by applying alpha-tocopherol (TOC) externally. Two methods, foliar spray (FS) and pre-sowing seed treatment (PS), were used for this purpose. Water deficiency treatment was applied to 32-day-old seedlings of two eggplant cultivars, Janak and Black Beauty. Different concentrations of TOC were applied as PS and FS. The results showed that drought stress significantly reduced plant growth and chlorophyll contents, but increased proline, glycine betaine, malondialdehyde (MDA), hydrogen peroxide, relative membrane permeability, peroxidase, and superoxide dismutase activities in both cultivars. The application of TOC had a positive effect on overcoming the adverse effects of water stress on eggplants, improving plant growth and various physiological parameters. Overall, FS treatment was more effective in improving proline, glycine betaine, ascorbic acid, and enzyme activities, while PS treatment was more effective in reducing membrane permeability and improving total soluble proteins. The study concluded that TOC application was useful in mitigating the harmful effects of drought stress on eggplants of both cultivars.
Article
Environmental Sciences
Palak Bakshi, Pooja Sharma, Rekha Chouhan, Bilal Ahmad Mir, Sumit G. Gandhi, Renu Bhardwaj, Pravej Alam, Parvaiz Ahmad
Summary: This study aimed to assess the toxicity of Chlorpyrifos (CP) on Brassica juncea L. and investigate the ameliorative potential of phytohormone, 24-epi-brassinolide (EBL) mediated plant-microbe interaction in B. juncea L. The results showed that EBL and B2 treatment significantly increased the content of chlorophyll, carotenoids, flavonoids, anthocyanins, and xanthophylls in CP-stressed B. juncea seedlings. The supplementation of EBL and PGPR improved the expression of genes related to photosynthetic pigments and metabolic pathways. These findings suggest that EBL and PGPR can reduce CP-induced toxicity and promote recovery in B. juncea seedlings.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Farwa Basit, Javaid Akhter Bhat, Mohammed Nasser Alyemeni, Tariq Shah, Parvaiz Ahmad
Summary: This research reveals the role of exogenous nitric oxide (NO) in alleviating vanadium (V)-induced phytotoxicity in soybean plants. It improves plant biomass, growth, and photosynthetic attributes by regulating carbohydrates and plants biochemical composition, and enhances guard cells and stomatal aperture of soybean leaves. NO supplementation also regulates plant hormones, phenolic profile, and detoxifies excessive V content, thereby reducing oxidative stress and enhancing crop development and production.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Plant Sciences
Kanika Khanna, Renu Bhardwaj, Pravej Alam, Russel J. Reiter, Parvaiz Ahmad
Summary: Phytomelatonin is a multifunctional molecule that regulates various developmental processes and acts as an antioxidant in plants. It activates stress-responsive genes, stimulates antioxidant enzymes, and regulates physiological processes such as leaf senescence, seed germination, and photosynthesis. It plays a crucial role in molecular signaling and stress management in plants.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Review
Environmental Sciences
Kanika Khanna, Puja Ohri, Renu Bhardwaj
Summary: CRISPR-Cas9, a genome editing tool, has gained significant importance in various fields due to its efficacy in therapy, stress resistance in plants, environmental remediation, and sustainable agriculture for food security. Nanoparticles have addressed the challenges in plant biotechnology and improved cargo delivery and genome editing processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Zeeshan Khan, Tariq Shah, Muhammad Asad, Khadija Amjad, Abdulaziz Abdullah Alsahli, Parvaiz Ahmad
Summary: Microplastic accumulation in the soil-plant system can stress plants and affect product quality. The effect of microplastics on plants is inconsistent and the molecular mechanisms are unknown. This study investigated the molecular mechanism underlying the growth of soybean plants in soil contaminated with microplastics and arbuscular mycorrhizal fungi. The results showed that microplastic stress led to a decline in plant growth, chlorophyll content, and soybean yield. Microplastic addition caused oxidative stress and inhibited rubisco and root activity. However, arbuscular mycorrhizal fungi inoculation alleviated the phytotoxic effects of microplastics, induced the plant defense system, and upregulated genes responsible for metal uptake in soybean.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Review
Plant Sciences
Rekha Chouhan, Sajad Ahmed, Sumit G. Gandhi
Summary: Exposure to stresses leads to accumulation of pathogenesis-related proteins (PRs) in plants, and some PR classes with chitinase activity are induced in response to fungal pathogens attack. Transgenic plants over-expressing PR-chitinase genes offer a strategy to mitigate fungal pathogenic attack and improve crop yields.
JOURNAL OF PLANT PATHOLOGY
(2023)
Review
Pharmacology & Pharmacy
Sabeena Ali, Rekha Chouhan, Phalisteen Sultan, Qazi Parvaiz Hassan, Sumit G. Gandhi
Summary: The review summarizes the traditional uses, phytochemistry, and pharmacology of various species of the Aconitum genus, and discusses the toxicology and safety of Aconitum species as herbal drugs for human consumption.
ADVANCES IN TRADITIONAL MEDICINE
(2023)