Article
Agronomy
Shuwen Li, Hong Xie, Yinglong Chen, Wei Jia, Di Dong, Mengdi Wang, Yinruizhi Li, Tiejun Zhang, Liebao Han, Yuehui Chao
Summary: This study cloned a gene called MtTGA1 from Medicago truncatula and found that it was highly expressed in the root. The expression of MtTGA1 was upregulated after SA and BR treatments, but downregulated after GA and ABA treatments. Transgenic plants with MtTGA1 showed longer root lengths and increased activity of antioxidant enzymes. MtTGA1 also interacted with SPX1 protein. These findings are important for understanding the regulatory network of plant growth and development mediated by the TGA1 transcription factor family.
Article
Biochemistry & Molecular Biology
Parwinder Kaur, Christopher Lui, Olga Dudchenko, Raja Sekhar Nandety, Bhavna Hurgobin, Melanie Pham, Erez Lieberman Aiden, Jiangqi Wen, Kirankumar S. Mysore
Summary: Legumes, especially Medicago truncatula, play a significant role in sustainable agricultural production by fixing atmospheric nitrogen to improve soil quality. While the Jemalong A17 accession of M. truncatula has a reference genome, the R108 accession is more favorable for genetic studies due to its high transformation efficiency and Tnt1-insertion population resource. The use of in situ Hi-C technology has allowed for the development of a chromosome-length genome assembly for M. truncatula cv. R108, facilitating accurate synteny analysis and providing insights for functional genomics research in legume crops.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Junfeng Yang, Qian Li, Wenxuan Du, Yu Yao, Guoan Shen, Wenbo Jiang, Yongzhen Pang
Summary: In this study, 25 MtBGAL members were identified and characterized in Medicago truncatula, showing distinct expression patterns and a stem-specific expression module associated with cell wall metabolic pathways. MtBGAL1 and MtBGAL23 were highly expressed in mature stems and subcellularly localized to the cell wall, indicating their roles in cell wall modification. These results shed light on the functional characterization and utilization of BGAL genes for improving the quality of legume forage crops.
Article
Plant Sciences
Nahed A. A. Ibrahim, Asmaa H. Hassan, Omaima A. Sharaf, Mohamed E. Saad, Shereen F. Elkholy, Ghada A. Abu El-Heba
Summary: Using reverse genetic approach, knockout mutations in genes related to nodulation process were isolated and characterized in Medicago truncatula. The akt1 mutant exhibited higher number of deformed root nodules and shorter root length compared to wild type, along with abnormalities in symbiotic nodule zones and reduced ion content regulation abilities. This study identified a novel Tnt1-retrotransposon mutant impaired in the inwardly rectifying potassium channel AKT1, providing insights into the role of this gene in ion uptake and nitrogen fixation.
EGYPTIAN JOURNAL OF BOTANY
(2021)
Article
Biochemistry & Molecular Biology
Sondes Rahoui, Abdelilah Chaoui, Cecile Ben, Martina Rickauer, Laurent Gentzbittel, Ezzeddine El Ferjani
Article
Plant Sciences
Laurent Gentzbittel, Stig U. Andersen, Cecile Ben, Martina Rickauer, Jens Stougaard, Nevin D. Young
FRONTIERS IN PLANT SCIENCE
(2015)
Article
Plant Sciences
Sondes Rahoui, Yves Martinez, Lamia Sakouhi, Cecile Ben, Martina Rickauer, Ezzeddine El Ferjani, Laurent Gentzbittel, Abdelilah Chaoui
Article
Plant Sciences
Maoulida Toueni, Cecile Ben, Aurelie Le Ru, Laurent Gentzbittel, Martina Rickauer
FRONTIERS IN PLANT SCIENCE
(2016)
Article
Biochemistry & Molecular Biology
Fanping Cai, Bonnie S. Watson, David Meek, David V. Huhman, Daniel J. Wherritt, Cecile Ben, Laurent Gentzbittel, Brian T. Driscoll, Lloyd W. Sumner, Jacqueline C. Bede
JOURNAL OF CHEMICAL ECOLOGY
(2017)
Article
Agronomy
A. Negahi, C. Ben, L. Gentzbittel, P. Maury, A. R. Nabipour, A. Ebrahimi, A. Sarrafi, M. Rickauer
Article
Biochemistry & Molecular Biology
Johann Pierre, Beatrice Teulat, Marjorie Juchaux, Guillaume Mabilleau, Didier Demilly, Carolyne Duerr
Article
Agronomy
Manel Chaouachi, Takwa Marzouk, Selim Jallouli, Salem Elkahoui, Laurent Gentzbittel, Cecile Ben, Naceur Djebali
Summary: Botrytis cinerea is a major postharvest fungal pathogen in fresh produce, and the use of antagonistic microorganisms, particularly certain endophytic bacterial strains, shows promising potential in preventing decay in tomato fruit. These bacterial strains produce antifungal volatile organic compounds (VOCs) and some even have plant growth promoting effects. Specific VOCs such as 3-Methylbutan-1-ol are effective in protecting tomato fruit against B. cinerea infection, suggesting their potential use as biocontrol agents in reducing postharvest decay.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
Article
Plant Sciences
Thibault Barrit, Alexis Porcher, Caroline Cukier, Pascale Satour, Thomas Guillemette, Anis M. Limami, Beatrice Teulat, Claire Campion, Elisabeth Planchet
Summary: This study examined the impact of nitrogen source on the susceptibility to an necrotrophic fungus in Arabidopsis thaliana. The results showed that nitrate nutrition increased fungal lesions considerably, while infection with the fungus induced stronger gene expression of ammonium transporters in ammonium-grown plants. Nitrogen source also affected plant metabolism and the production of nitric oxide, which facilitated fungal infection. The study highlighted the complex relationship between nitrogen availability and disease susceptibility in plants.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Genetics & Heredity
Rim Gubaev, Stepan Boldyrev, Elena Martynova, Alina Chernova, Tatyana Kovalenko, Tatyana Peretyagina, Svetlana Goryunova, Denis Goryunov, Zhanna Mukhina, Cecile Ben, Laurent Gentzbittel, Philipp Khaitovich, Yakov Demurin
Summary: In this study, QTL mapping was performed on two independent populations to investigate the genetic control of tocopherol composition in sunflower. The results revealed that tocopherol composition is controlled by two loci, and validated two SNP markers for marker-assisted selection.
G3-GENES GENOMES GENETICS
(2022)
Article
Agronomy
Souad Insaf Djouider, Laurent Gentzbittel, Raghavendra Jana, Martina Rickauer, Cecile Ben, Mohamed Lazali
Summary: This study investigates the relationship between phosphorus acquisition and utilization efficiency in chickpea, and the agronomical performances of different varieties under phosphorus-deficient conditions. The results show that phosphorus deficiency negatively affects the growth, yield, germination, and nodulation performances of chickpea. However, adaptive mechanisms, such as nitrogen-fixing nodules and photosynthesis, help maintain physiological efficiency. Furthermore, there is a large genetic variation in yield components, phosphorus and nitrogen acquisition, and phosphorus utilization efficiency, indicating the important role of nodules in phosphorus uptake.
Article
Multidisciplinary Sciences
Rim Gubaev, Stepan Boldyrev, Elena Martynova, Alina Chernova, Tatyana Kovalenko, Yuliya Chebanova, Tatyana Peretyagina, Svetlana Goryunova, Denis Goryunov, Zhanna Mukhina, Cecile Ben, Laurent Gentzbittel, Philipp Khaitovich, Yakov Demurin
Summary: Oleic acid is a valuable trait in oilseed crops as it increases oil oxidative stability. This study focused on the genetic control of high oleic acid content in sunflower. Through QTL mapping, it was found that the trait is controlled by one major effect locus, but with different dominant/recessive effects in different crosses. Additionally, a translocation between chromosome 7 and 14 was observed in one of the crosses. Marker-assisted selection can be achieved using the identified single nucleotide polymorphism markers.
Article
Plant Sciences
Adel Kadri, Bernadette Julier, Meriem Laouar, Cecile Ben, Mounawer Badri, Jugurta Chedded, Brahim Mouhouche, Laurent Gentzbittel, Aissa Abdelguerfi
ACTA PHYSIOLOGIAE PLANTARUM
(2017)