Article
Agronomy
Daniela C. Sabate, Carolina Perez Brandan
Summary: The aim of this study was to evaluate the ability of Bacillus amyloliquefaciens B14 to improve degraded soil quality and enhance crop growth and yield in northwest Argentina. The results showed that the B14 strain significantly improved nutrient availability and increased soil organic carbon, total nitrogen, and extractable phosphorus. It also stimulated the activity of soil enzymes and increased microbial respiration and biomass carbon. Additionally, the B14 strain increased beneficial microbial populations and reduced disease incidence caused by a pathogenic fungus. This study highlights the potential of Bacillus amyloliquefaciens B14 as a bioinoculant for common bean cultivation, offering both crop protection and soil quality enhancement.
Review
Biology
Bouchra Benmrid, Cherki Ghoulam, Youssef Zeroual, Lamfeddal Kouisni, Adnane Bargaz
Summary: This review focuses on the benefits of rhizobacterial consortia-based inoculants in intercropping systems, particularly in legume-cereal intercropping systems. The intricate interactions between rhizobacterial consortia-based inoculants, cropping systems, and soil are discussed, with specific emphasis on drought and phosphorous deficiency.
COMMUNICATIONS BIOLOGY
(2023)
Article
Ecology
Guadalupe Medina-de La Rosa, Felipe Garcia-Oliva, Cesare Ovando-Vazquez, Lourdes B. Celis-Garcia, Lucia Lopez-Reyes, Nguyen Esmeralda Lopez-Lozano
Summary: This study investigates how the changes in amino acids in the rhizosphere of Agave lechuguilla affect the composition, functions, and activity of beneficial rhizobacteria. The most abundant genera in the rhizobacterial community were found to be from the phylum Proteobacteria and Bacteroidetes. Bacillus, representing Firmicutes, was mainly present in the phosphorus-mineralizing bacteria community, indicating its distribution and versatility in harsh desert environments. Additionally, a high proportion of unknown taxa of nitrogen-fixing bacteria was discovered, suggesting the presence of unexplored diversity in the rhizosphere of these plants.
Article
Agronomy
Bruna Coelho de Lima, Aurenivia Bonifacio, Francisco de Alcantara Neto, Fabio Fernando Araujo, Ademir Sergio Ferreira Araujo
Summary: Inoculation of Bacillus subtilis can improve the growth and yield of common bean under heat stress conditions. The inoculated plants showed enhanced growth and reproductive performance, with increased biomass, shoot:root ratio, number of leaves, pods, and flowers, as well as reduced flower abortion, compared to non-inoculated plants.
Article
Microbiology
Lubaba Amede Mussa, Diriba Muleta Yadetie, Endeshaw Abatenh Temesgen, Anteneh Tesfaye Tefera, Mesfin Tafesse Gemeda
Summary: This study isolated and characterized phytase producing bacteria from rhizosphere soil, fresh poultry excreta, and cattle shed to evaluate their potential in improving poultry feeds. The results showed that using microbial phytase enzyme can improve the nutritional value of poultry feed.
Article
Plant Sciences
Yaowen Xu, Xiaogai Ge, Benzhi Zhou, Lei Lei, Wenfa Xiao
Summary: Phosphorus is a limiting nutrient for plant growth in subtropical regions, but our understanding of how soil phosphorus responds to changes in stand age is limited. In this study, we measured the concentrations of different bioavailable phosphorus fractions in the rhizosphere soil of Pinus massoniana stands of different ages. The results showed that total phosphorus concentration and N:P ratio in the rhizosphere soil initially decreased, then increased with increasing stand age. Soluble phosphorus concentration initially decreased, then increased, while exchangeable and ligand phosphorus initially decreased, then stabilized. Hydrolyzable phosphorus increased initially, then decreased. The results also indicated that ligand phosphorus and soluble phosphorus were the major factors influencing total phosphorus concentration.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Qihua Wu, Diwen Chen, Wenling Zhou, Xingxing Zhang, Junhua Ao
Summary: Long-term application of phosphorus fertilizer alters the bacterial structure and functions in P-deficient sugarcane soil. The study provides useful information for improving soil nutrients and crop production through fertilization measures.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Antonia Erica Santos de Souza, Vinicius Augusto Filla, Joao Paulo Morais da Silva, Marcelo Rodrigues Barbosa Junior, Christiane Abreu de Oliveira-Paiva, Anderson Prates Coelho, Leandro Borges Lemos
Summary: The inoculation of phosphate-solubilizing bacteria (PSB) in common bean has a positive impact on growth, nutrition, yield, and grain quality, while reducing the application of chemical phosphorus. These findings suggest that PSB is a sustainable strategy to enhance crop productivity in a more environmentally friendly way.
Article
Agriculture, Multidisciplinary
Sandra Lopez-Rayo, Silvia Valverde, Juan Joseï Lucena
Summary: This study investigates the capacity of [S,S]-EDDS to solubilize micronutrients from agronomic soils and enhance plant nutrition. The results show that [S,S]-EDDS has a high capacity to solubilize iron and other micronutrients, with the best results observed in sandy-clay soils with low iron content, typical of Mediterranean areas. The study supports the direct application of the ligand to soils and the possible use of ligand-producing bacteria in biotechnology applications.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Soil Science
Victoria Janes-Bassett, Martin S. A. Blackwell, Gordon Blair, Jess Davies, Philip M. Haygarth, Malika M. Mezeli, Gavin Stewart
Summary: Phosphorus is a key limiting factor in crop growth and its inefficient uptake by plants necessitates the application of phosphorus fertilizers. However, excessive use of phosphorus fertilizers can lead to negative environmental consequences, and mined rock phosphate, the source of mineral phosphorus fertilizers, is finite and needs sustainable management. A study on phosphatase enzyme activity in agricultural settings found that it plays an important role in phosphorus-deficient systems, with organic phosphorus availability being more influential than the level of phosphorus deficiency. Other factors such as nitrogen addition, pH of the growth substrate, and changes in plant composition and physiology did not significantly affect the enzyme activity.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Yingyan Wang, Donghai Luo, Ziyi Xiong, Zifang Wang, Ming Gao
Summary: This study explored the interactions between organic acids, phosphate-mineralizing microorganisms, and phosphorus fractions in rhizosphere soil. The results showed that organic acids, especially oxalic acid, directly and indirectly affected phosphorus fractions. An increase in oxalic acid concentration led to an increase in alkaline phosphatase released by phoD-harboring bacteria, which reduced the content of calcium-bound organophosphorus, insoluble organophosphorus, and residual phosphorus. On the other hand, a decrease in oxalic acid concentration resulted in an increase in acid phosphatase released by phoC-harboring bacteria, which reduced the content of calcium-bound organophosphorus. The findings highlight the essential roles of oxalic acids in changing phosphorus fractions in lemon tree rhizosphere soil.
SOIL & TILLAGE RESEARCH
(2023)
Article
Agronomy
Angel De Souza-Torres, Ernesto Govea-Alcaide, Ernesto Gomez-Padilla, Sueli H. Masunaga, Fernando B. Effenberger, Liane M. Rossi, Raul Lopez-Sanchez, Renato F. Jardim
Summary: The study found that Fe3O4 nanoparticles and Rhizobium inoculation had significant positive effects on nodulation, nitrogen fixation, and growth of common beans, including increased nitrogenase activity, leghemoglobin, iron content, active nodules, and nodule dry weight. The best results were achieved with combined treatment. The presence of Fe3O4 nanoparticles in nodules improved symbiotic performance, enhancing nodulation and nitrogen fixation.
Article
Multidisciplinary Sciences
Adama Sagnon, Shinya Iwasaki, Ezechiel Bionimian Tibiri, Nongma Armel Zongo, Emmanuel Compaore, Isidore Juste O. Bonkoungou, Satoshi Nakamura, Mamoudou Traore, Nicolas Barro, Fidele Tiendrebeogo, Papa Saliou Sarr
Summary: The present study evaluated the use of phosphate rock-enriched composts as low-cost fertilizers for sorghum production in sub-Saharan Africa. It was observed that the treatment of phosphate rock-rhizosphere soil-enriched compost (P-COMP-SOIL) resulted in better sorghum yields compared to other treatments, including the application of chemical fertilizers. The superior performance of P-COMP-SOIL was attributed to its higher available phosphorus content and microbial abundance.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Jessy Nachilima, Langa Tembo
Summary: This study evaluated gamma ray induced bean mutants in hydroponics under different phosphorus concentrations, with genotype SK 46-17-1 identified as a better performer. It was found that a concentration of 9.30 mg/L P impedes seedling productivity, and shoot length can only be used as a supplement to root length in evaluating genotypic efficiency in utilizing P in hydroponic medium.
JOURNAL OF PLANT NUTRITION
(2022)
Article
Horticulture
Alejandro Palacio-Marquez, Carlos A. Ramirez-Estrada, Nayeli Jazmin Gutierrez-Ruelas, Esteban Sanchez, Damaris L. Ojeda-Barrios, Celia Chavez-Mendoza, Juan P. Sida-Arreola
Summary: The individual application of zinc oxide nanoparticles and chitosan can improve crop growth and production, with higher effectiveness compared to conventional fertilizers. However, there is limited information on the foliar application of zinc oxide nanoparticles complexed with chitosan and their effects on crop physiology. Further research is needed to understand the physicochemical properties of these nanoparticles and their impact on plant physiology and biochemistry.
SCIENTIA HORTICULTURAE
(2021)
Article
Biodiversity Conservation
Alexis Thoumazeau, Cecile Bessou, Marie-Sophie Renevier, Jean Trap, Raphael Marichal, Louis Mareschal, Thibaud Decaens, Nicolas Bottinelli, Benoit Jaillard, Tiphaine Chevallier, Nopmanee Suvannang, Kannika Sajjaphan, Philippe Thaler, Frederic Gay, Alain Brauman
ECOLOGICAL INDICATORS
(2019)
Article
Agronomy
Patricia Battie-Laclau, Elisa Taschen, Claude Plassard, Damien Dezette, Josiane Abadie, Didier Arnal, Philippe Benezech, Maxime Duthoit, Anne-Laure Pablo, Christophe Jourdan, Jean-Paul Laclau, Isabelle Bertrand, Adrien Taudiere, Philippe Hinsinger
Article
Soil Science
Mahafaka Patricia Ranoarisoa, Jean Trap, Anne-Laure Pablo, Damien Dezette, Claude Plassard
SOIL BIOLOGY & BIOCHEMISTRY
(2020)
Article
Soil Science
Alexis Thoumazeau, Tiphaine Chevallier, Victor Baron, Nancy Rakotondrazafy, Phantip Panklang, Raphael Marichal, Mark Kibblewhite, David Sebag, Florent Tivet, Cecile Bessou, Frederic Gay, Alain Brauman
Article
Agronomy
Porntip Puttaso, Weravart Namanusart, Kanjana Thumanu, Bhanudacha Kamolmanit, Alain Brauman, Phrueksa Lawongsa
Article
Ecology
Pusanisa Heepngoen, Alexis Thoumazeau, Marie-Sophie Renevier, Kannika Sajjaphan, Frederic Gay, Alain Brauman
Summary: Assessing the impacts of land management on soil quality is crucial, with functional methods being more sensitive in reflecting the abiotic-biotic interactions of the soil system over a gradient of disturbance, compared to traditional physical, chemical, and biological parameters.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
Review
Medicine, Research & Experimental
Ibtissem El Ouar, Abdelhamid Djekoun
Summary: CRISPR, a family of DNA repeats, provides immunity against viral and plasmid DNA in bacteria and archaea by cleaving DNA double strands at specific sites using endonuclease Cas guided by RNA sequence. The discovery revolutionized genetic engineering, allowing for precise genome editing. While CRISPR/Cas system has vast applications in biomedical field, ethical concerns may hinder its full potential.
BIOMEDICINE & PHARMACOTHERAPY
(2021)
Article
Soil Science
Remy Kulagowski, Alexis Thoumazeau, Audrey Leopold, Pascal Lienhard, Stephane Boulakia, Aurelie Metay, Tobias Sturm, Philippe Tixier, Alain Brauman, Bruno Fogliani, Florent Tivet
Summary: By assessing the relationships between soil health and cropping system performance in three maize-based cropping systems in New Caledonia, it was found that Conservation Agriculture (CA) can improve soil health and lead to increased productivity in maize crops.
SOIL & TILLAGE RESEARCH
(2021)
Article
Environmental Sciences
Phantip Panklang, Alexis Thoumazeau, Rawee Chiarawipa, Sayan Sdoodee, David Sebag, Frederic Gay, Philippe Thaler, Alain Brauman
Summary: The long-term cultivation of rubber has negative effects on soil quality, particularly on physico-chemical properties and carbon dynamics. Deforestation for rubber plantations leads to severe soil degradation. After three rotations of rubber cultivation, the soil quality is very low, emphasizing the need for more sustainable planting practices to limit these impacts.
LAND DEGRADATION & DEVELOPMENT
(2022)
Article
Plant Sciences
Ihsein Rokia Amine-Khodja, Alexandre Boscari, Nassira Riah, Maya Kechid, Rim Tinhinen Maougal, Nadir Belbekri, Abdelhamid Djekoun
Summary: Drought stress is a major limitation in crop production, and this study evaluated the effects of different Rhizobium leguminosarum strains on terminal drought tolerance in faba bean genotypes. The results showed that different strains of Rhizobium activated different antioxidative mechanisms and production of compatible solutes. The use of a local strain improved drought resilience in faba bean plants compared to a common strain.
Article
Agronomy
Phantip Panklang, Philippe Thaler, Alexis Thoumazeau, Rawee Chiarawipa, Sayan Sdoodee, Alain Brauman
Summary: The long-term impact of continuous rubber monocropping on soil biodiversity, specifically soil macrofauna and nematode diversity, was assessed in this study. The results showed negative effects on soil biodiversity, particularly in old age rubber plantations, indicating that a maximum of two rotations of rubber monocropping (around 50 years) may be the limit for soil biodiversity recovery.
ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
(2022)
Article
Environmental Sciences
Thibaut Perron, Aymard Kouakou, Charlotte Simon, Louis Mareschal, Gay Frederic, Mouman Soumahoro, Daouda Kouassi, Nancy Rakotondrazafy, Bruno Rapidel, Jean-Paul Laclau, Alain Brauman
Summary: This study assessed the effects of clear-cutting on soil functions and their restoration after replanting rubber trees. Clear-cutting and land preparation significantly disturbed carbon transformation, nutrient cycling, and structure maintenance functions. However, carbon transformation and structure maintenance functions were fully restored within 12 to 18 months after the disturbance when logging residues were applied. No restoration of nutrient cycling was observed over the study period. A legume cover crop improved the restoration of carbon transformation. There was a strong relationship between soil macrofauna diversity and soil health.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Editorial Material
Soil Science
Suvannang Nopmanee, Hartmann Christian, Iwai Chuleemas Boonthai, Jaiarree Sathaporn, Daungkamol Kridsopon, Polsrakhu Payattika, Sukchan Somsak, Sapet Amonrat, Pierret Alain, Brauman Alain, Hammecker Claude, Robain Henri
Article
Soil Science
Margot Brondani, Claude Plassard, Estelle Ramstein, Arthur Cousson, Mickael Hedde, Laetitia Bernard, Jean Trap
Summary: This study determined the effects of bacterial-feeding nematodes on soil bacterial communities and Pinus pinaster growth and nutrition. Traits were found to explain soil and plant function better than species identity or life strategy groups.
Article
Plant Sciences
Kittima Waithaisong, Agnes Robin, Louis Mareschal, Jean-Pierre Bouillet, Jean-Michel Harmand, Bruno Bordron, Jean-Paul Laclau, Jose Leonardo Moraes Goncalves, Claude Plassard
Summary: We hypothesized that Acacia mangium, a nitrogen-fixing tree, could enhance the growth and nitrogen nutrition of non-fixing tree species, such as Eucalyptus. We compared N-mineralization rates, respiration rates, and N bioavailability in soil samples collected from areas covered with Acacia, Eucalyptus, or native vegetation in two tropical sites. Our results showed that Eucalyptus seedling growth and N bioavailability were influenced by the N-mineralization rates, but bioassays in pots were more accurate in predicting the growth of Eucalyptus seedlings. Therefore, planting Acacia mangium could be a beneficial option to maintain the growth and N bioavailability of non-fixing tree species in the tropical planted forests.