Article
Plant Sciences
Ying Liu, Tao Li, Chunxia Zhang, Wenli Zhang, Nan Deng, Lynnette M. A. Dirk, A. Bruce Downie, Tianyong Zhao
Summary: Overexpression of the ZmRAFS gene in maize increases raffinose content in leaves, reduces water loss, and enhances plant drought stress tolerance.
Article
Plant Sciences
Zheng Liu, Jia Gao, Ye Sha, Zhanhong Hao, Lihua Ke, Yiwen Huang, Fanjun Chen, Lixing Yuan, Guohua Mi
Summary: The physiological mechanism behind the high nitrogen responsiveness of modern maize cultivars is unclear. This study analyzed the growth responses to nitrogen supply of three maize cultivars released in different decades and found that the newer cultivar, ZD958, had the highest nitrogen responsiveness of shoot biomass. The study also discovered that this response was due to the enhanced gibberellins-dependent leaf elongation response in ZD958. The genes related to gibberellin biosynthesis and signal transduction were up-regulated in ZD958, while the genes related to gibberellin inactivation were down-regulated.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Biochemistry & Molecular Biology
Xiangzhuo Ji, Bingbing Jin, Zelong Zhuang, Fangguo Chang, Fang Wang, Yunling Peng
Summary: Ubiquitin/proteasome-mediated proteolysis (UPP) plays a crucial role in plant growth and development, and the RPN10 subunit of the proteasome mediates ubiquitination substrate recognition. The recognition pathway of ubiquitinated UPP substrate varies among different species, suggesting different mechanisms and functions of RPN10. This study investigated the effects of exogenous brassinosteroids (BRs) on leaf angle and gene expression in wild-type B73 and mutant rpn10 in maize. The results showed that BR had a stronger regulatory effect on leaf angle in rpn10 compared to B73. Transcriptome analysis revealed significant up-regulation of CRE1, A-ARR, and SnRK2, and significant down-regulation of PP2C, BRI1 AUX/IAA, JAZ, and MYC2. This study provides insights into the regulatory mechanism of ZmRPN10 on maize leaf angle and offers a potential gene resource for maize breeding.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Zhang Min, Xing Li-juan, Ren Xiao-tian, Zou Jun-jie, Song Fu-peng, Wang Lei, Xu Miao-yun
Summary: Increasing planting density can increase maize yield, but it may also lead to ovary apical abortion-induced bald tips of the ears, reducing yield. This study investigated the mechanism underlying ovary apical abortion response to high density by evaluating plant traits under different densities. Results showed that high density extended the anthesis-silking interval, reduced silk extrusion, and resulted in smaller silk cells, impacting gene expression associated with expansive growth.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Agronomy
Henderson Castelo Sousa, Geocleber Gomes de Sousa, Thales Vinicius de Araujo Viana, Arthur Prudencio de Araujo Pereira, Carla Ingryd Nojosa Lessa, Maria Vanessa Pires de Souza, Jose Marcelo da Silva Guilherme, Geovana Ferreira Goes, Francisco Gleyson da Silveira Alves, Silas Primola Gomes, Fred Denilson Barbosa da Silva
Summary: The use of plant-growth-promoting rhizobacteria (PGPR) is an option to mitigate abiotic constraints in tropical semi-arid regions. These bacteria have mechanisms to combat water stress and promote plant growth. Bacillus aryabhattai inoculation in maize plants alleviated salt stress and improved leaf gas exchange. However, irrigation with brackish water reduced water-use efficiency. Inoculating with PGPR is a potential solution for regions with limited access to low-salinity water.
Article
Agronomy
Chukiat Pradawet, Nuttapon Khongdee, Wanwisa Pansak, Wolfram Spreer, Thomas Hilger, Georg Cadisch
Summary: Maize production in Thailand is facing drought periods, and there is a need for rapid and accurate methods to detect crop water stress. This study used thermal imaging to assess maize water stress and yield prediction, and identified suitable detection time and index.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2023)
Article
Plant Sciences
Ruixin Shao, Shuangjie Jia, Yulou Tang, Junjie Zhang, Hongwei Li, Luping Li, Jianhui Chen, Jiameng Guo, Hao Wang, Qinghua Yang, Yongchao Wang, Tianxue Liu, Xiang Zhao
Summary: This study found that water deficit significantly affects the biomass and ear development of maize plants, especially reducing ear diameter and the contents of starch, glucose, and sucrose in ears. Additionally, transcriptome analysis indicated that genes related to starch and sucrose metabolism were mainly affected by water deficit during young ear development.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Cindy M. S. Laine, Hamada AbdElgawad, Gerrit T. S. Beemster
Summary: Maize, a cold-sensitive crop, requires cold tolerance for extending the growing season in temperate climates. A meta-analysis was conducted to investigate the effect of cold stress on maize leaf using data from literature. Response curves to temperature and exposure durations were constructed for various parameters, and the importance of these parameters for cold tolerance was evaluated using cold tolerant and cold sensitive lines. The results showed interacting effects of temperature and exposure durations on different response parameters, with electrolyte leakage being a reliable indicator for cold tolerance studies.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Biology
Noel Anthony Mano, Bethany Madore, Michael V. Mickelbart
Summary: The stomata on leaf surfaces control gas exchange and water loss, closing during dry periods to conserve water. The distribution and size of stomatal complexes is determined by epidermal cell differentiation and expansion during leaf growth. Regulation of these processes in response to water deficit may result in stomatal anatomical plasticity as part of the plant acclimation to drought.
Article
Biochemistry & Molecular Biology
Xiangzhuo Ji, Qiaohong Gao, Fenqi Chen, Mingxing Bai, Zelong Zhuang, Yunling Peng
Summary: This study investigates the regulation mechanism of ZmLPA1 gene on maize leaf angle. It reveals that the regulation effect of IAA on the leaf angle of lpa1 is significantly stronger than that of the wild type. Transcriptome analysis shows the enrichment of the indole alkaloid biosynthesis pathway and the upregulation of AUX1, AUX/IAA, ARF, and SAUR genes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Paola C. Silva, Andrea C. Sanchez, Marcela A. Opazo, Luis A. Mardones, Edmundo A. Acevedo
Summary: This research evaluated grain yield, anthesis-silking interval (ASI), and phenotypic plasticity of seven temperate maize hybrids in the Mediterranean climate area of Chile. The results showed that ASI and yield had high phenotypic plasticity and were positively correlated, indicating the importance of assessing ASI plasticity for improving yield stability in temperate hybrid maize under water stress conditions.
FIELD CROPS RESEARCH
(2022)
Article
Agronomy
Haoyuan Zheng, Jingyu Wang, Yue Cui, Zheyun Guan, Liu Yang, Qingquan Tang, Yifan Sun, Hongsen Yang, Xueqing Wen, Nan Mei, Xifeng Chen, Yan Gu
Summary: The wide-narrow-row planting pattern significantly improved the photosynthetic capacity of maize, along with an increase in stomatal conductance (Gs), transpiration rate (Tr), and photosynthetic rate (Pn). Among different parameters, D-M6S6 treatment showed the most significant effect on photochemical quenching, actual photochemical efficiency, and maximum photochemical efficiency. Therefore, intercropping six rows of maize and six rows of soybean based on the wide-narrow-row planting pattern is recommended in semi-arid regions of western China.
Article
Plant Sciences
Hesham Farouk Oraby
Summary: The current study shows the potential of using maize silk as a platform for the biosynthesis of cerium oxide nanoparticles, which exhibit strong scavenging potential and can be used to detect phenolic compounds with great sensitivity.
Article
Plant Sciences
Yunfang Zhang, Xiangzhuo Ji, Jinhong Xian, Yinxia Wang, Yunling Peng
Summary: Leaf angle is an important agronomic trait in maize. The mutant bhlh112, induced by EMS, showed decreased leaf angle and plant height compared to the wild-type plants. The mutant was found to be more sensitive to exogenous hormones and the ZmbHLH112 gene was related to auxin and brassinosteroid biosynthesis pathways, suggesting its role in the regulation of leaf angle development.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Yaoyao Li, Bo Ming, Panpan Fan, Yue Liu, Keru Wang, Jun Xue, Shaokun Li, Ruizhi Xie
Summary: This study quantitatively evaluated the contribution of leaf area and longevity to leaf area duration (LAD) and yield in maize plants. The results showed that leaf area had a larger proportional contribution to LAD in the upper leaves, while leaf longevity contributed more to LAD in the lower leaves. Both factors were greatly affected by variations in plant density and nitrogen application. The increase in LAD was positively associated with an increase in dry matter at maturity and grain yield.
FIELD CROPS RESEARCH
(2022)
Article
Plant Sciences
Sebastien Lacube, Loic Manceau, Claude Welcker, Emilie J. Millet, Brigitte Gouesnard, Carine Palaffre, Jean-Marcel Ribaut, Graeme Hammer, Boris Parent, Francois Tardieu
JOURNAL OF EXPERIMENTAL BOTANY
(2020)
Article
Genetics & Heredity
Sara Castelletti, Aude Coupel-Ledru, Italo Granato, Carine Palaffre, Llorenc Cabrera-Bosquet, Chiara Tonelli, Stephane D. Nicolas, Francois Tardieu, Claude Welcker, Lucio Conti
Article
Agronomy
David Eyland, Catherine Breton, Julie Sardos, Simon Kallow, Bart Panis, Rony Swennen, Janet Paofa, Francois Tardieu, Claude Welcker, Steven B. Janssens, Sebastien C. Carpentier
Summary: The study reports on a collection mission in Papua New Guinea to develop a wild banana seed bank, focusing on M. acuminata ssp. banksii. The genomic dissimilarity of M. acuminata ssp. banksii was calculated to be 4%, differing at least 5% from accessions in the International Transit Centre. High-throughput phenotyping revealed significant differences in drought avoidance strategies.
Article
Biochemistry & Molecular Biology
Melisande Blein-Nicolas, Sandra Sylvia Negro, Thierry Balliau, Claude Welcker, Llorenc Cabrera-Bosquet, Stephane Dimitri Nicolas, Alain Charcosset, Michel Zivy
Review
Biochemical Research Methods
Francois Tardieu
Summary: Drought tolerance, water use efficiency, and yield are different physiological mechanisms that play important roles in dry areas. Improving drought tolerance requires conservative strategies with protection and repair mechanisms, while increasing water use efficiency can be achieved by reducing night transpiration. Yield in drought-prone areas depends on factors such as phenology, plant architecture, and adaptive physiological traits.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Plant Sciences
Lei Ding, Thomas Milhiet, Boris Parent, Adel Meziane, Francois Tardieu, Francois Chaumont
Summary: research shows that the maize plasma membrane PIP2;5 aquaporin plays a significant role in regulating stomatal closure and plant transpiration. Overexpression of PIP2;5 leads to faster stomatal closure under water deficit conditions, while knocking down PIP2;5 gene expression results in reduced sensitivity of stomatal closure to abscisic acid.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Agronomy
Anna Panozzo, Hsin-Ya Huang, Bruno Bernazeau, Florence Meunier, Olivier Turc, Robin Duponnois, Yves Prin, Teofilo Vamerali, Dominique Desclaux
Summary: In the context of climate change, trees in agroforestry systems can mitigate water and heat stresses, but excessive shading may have a negative impact on crop yield.
Article
Plant Sciences
Pablo Affortit, Branly Effa-Effa, Mame Sokhatil Ndoye, Daniel Moukouanga, Nathalie Luchaire, Llorenc Cabrera-Bosquet, Maricarmen Peralvarez, Raphael Pilloni, Claude Welcker, Antony Champion, Pascal Gantet, Abdala Gamby Diedhiou, Baboucarr Manneh, Ricardo Aroca, Vincent Vadez, Laurent Laplaze, Philippe Cubry, Alexandre Grondin
Summary: Higher transpiration efficiency in African rice is associated with transpiration restriction controlled by root-shoot growth balance. Root-shoot partitioning plays an important role in transpiration restriction, leading to improved transpiration efficiency in African rice.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Multidisciplinary Sciences
Claude Welcker, Nadir Abusamra Spencer, Olivier Turc, Italo Granato, Romain Chapuis, Delphine Madur, Katia Beauchene, Brigitte Gouesnard, Xavier Draye, Carine Palaffre, Josiane Lorgeou, Stephane Melkior, Colin Guillaume, Thomas Presterl, Alain Murigneux, Randall J. Wisser, Emilie J. Millet, Fred van Eeuwijk, Alain Charcosset, Francois Tardieu
Summary: Phenomic and genomic approaches are required to evaluate breeding strategies. The analysis of 65 years of genetic progress in maize shows that breeders have selected traits with stable effects on yield but not for adaptive traits. Simple physiological traits have been linked to yield gains, while traits related to stress adaptation have remained unchanged. New breeding strategies may be needed to exploit alleles governing physiological adaptive traits for yield stability under climate change.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Jugurta Bouidghaghen, Laurence Moreau, Katia Beauchene, Romain Chapuis, Nathalie Mangel, Llorenc Cabrera-Bosquet, Claude Welcker, Matthieu Bogard, Francois Tardieu
Summary: Breeding for climate change resilience requires considering adaptive traits, and robotized indoor phenotyping allows efficient measurement of these traits. This study demonstrates the translation of indoor-measured maize adaptive traits to the field and their inference via genomic prediction.
NATURE COMMUNICATIONS
(2023)
Article
Agronomy
Clement Saint Cast, Guillaume Lobet, Llorenc Cabrera-Bosquet, Valentin Couvreur, Christophe Pradal, Francois Tardieu, Xavier Draye
Summary: This study assesses the issues of interoperability and data exchange between the plant phenomics and modelling communities using a science mapping approach. The research topics studied in each community show a wide diversity. However, despite the compatibility of research topics, the connection between the two communities is weak. It is encouraged for these communities to work on ontologies, harmonized formats, translators, and connectors to facilitate transparent data exchange.
Review
Agronomy
F. Tardieu, I. S. C. Granato, E. J. Van Oosterom, B. Parent, G. L. Hammer