Article
Engineering, Environmental
Mohammad Golam Mostofa, Md Mezanur Rahman, Kien Huu Nguyen, Weiqiang Li, Yasuko Watanabe, Cuong Duy Tran, Minghui Zhang, Misao Itouga, Masayuki Fujita, Lam-Son Phan Tran
Summary: The study revealed that strigolactones are involved in mitigating arsenic stress in rice roots by regulating arsenate uptake, glutathione biosynthesis, vacuolar sequestration of arsenic, and antioxidant defense responses.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Plant Sciences
Shengnan Zhu, Qi Guo, Yingbin Xue, Xing Lu, Tao Lai, Cuiyue Liang, Jiang Tian
Summary: Phosphorus (P) is an essential nutrient that is easily fixed in soils, leading to most of the soil P existing in the form of inaccessible organic phosphorus (Po), particularly phytate-P. This study identified a Pi-starvation responsive GmPAP15a in soybean, which plays a vital role in phytate-P utilization and is regulated at both transcriptional and glycosylation modification levels. The results highlight the GmPHR9/GmPHR32-GmPAP15a signaling pathway that controls phytate-P utilization in soybean.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Nicolas Marro, Javier Lidoy, Maria Angeles Chico, Carlos Rial, Juan Garcia, Rosa M. Varela, Francisco A. Macias, Maria J. Pozo, Martina Janouskova, Juan A. Lopez-Raez
Summary: Nitrogen (N) and phosphorus (P) are essential macronutrients for plant growth, and Strigolactones (SLs) play a key role in regulating plant responses to phosphorus deficiency and mediating the N-P signaling interplay. SLs prioritize nitrogen status over phosphorus status in plants, affecting biosynthesis and modulating the expression of key regulatory genes in phosphate and nitrate signaling pathways. This suggests that SLs are involved in more physiological processes than previously proposed.
PLANT CELL AND ENVIRONMENT
(2022)
Review
Plant Sciences
Jed Clark, Tom Bennett
Summary: The rhizosphere is a complex interface between plants and their underground environment, where plants exude chemicals like strigolactones as signaling molecules. Strigolactones are used by plants to communicate with symbiotic partners and neighboring plants, but some parasitic organisms can eavesdrop on these signals. This review explores the intentional and unintentional consequences of strigolactone exudation and the molecular mechanisms behind it.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Microbiology
Prasun Ray, Yingqing Guo, Myoung-Hwan Chi, Nick Krom, Malay C. Saha, Kelly D. Craven
Summary: The root-associated fungus Serendipita bescii significantly improves lateral root growth and forage biomass in winter wheat under limited nitrogen or phosphorus conditions, activating a set of host genes regulating nitrogen and phosphorus starvation responses. These genes are hypothesized to regulate the acquisition, assimilation, and remobilization of nitrogen and phosphorus. The study suggests that S. bescii plays a critical role in modulating stress imposed by nitrogen and phosphorus limitation in winter wheat.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Plant Sciences
Jing Ling, Xing Huang, Yanxia Jia, Weiqi Li, Xudong Zhang
Summary: In this study, the role of transcription factor NUTCRACKER (NUC) in response to phosphate starvation was investigated. The overexpression of NUC improved plant growth under phosphate starvation conditions by promoting root development and enhancing the expression of phosphate starvation-induced genes.
PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Maryam Nasr Esfahani, Komaki Inoue, Kien Huu Nguyen, Ha Duc Chu, Yasuko Watanabe, Asaka Kanatani, David J. Burritt, Keiichi Mochida, Lam-Son Phan Tran
Summary: The study compared the transcriptome changes in chickpea roots and leaves under -Pi/+NO3-, +Pi/-NO3-, and -Pi/-NO3- conditions. The results showed that -Pi/-NO3- treatment had a lesser effect on gene expression changes related to Pi and NO3- transport, signalling networks, lipid remodelling, nitrogen and Pi scavenging/remobilization/recycling, carbon metabolism, and hormone metabolism compared to -Pi/+NO3- or +Pi/-NO3- treatments. Nutrient imbalance was found to be a stronger stimulus for molecular reprogramming than overall deficiency.
PLANT CELL AND ENVIRONMENT
(2021)
Review
Plant Sciences
Lingan Kong, Yunxiu Zhang, Wanying Du, Haiyong Xia, Shoujin Fan, Bin Zhang
Summary: Nitrogen is a critical nutrient for wheat growth, but excessive use of nitrogen fertilizers can lead to environmental pollution. Research has shown that wheat plants can adapt to nitrogen starvation through signaling mechanisms and optimizing root system architecture.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Veronica Santoro, Michela Schiavon, Ivan Visentin, Christian Constan-Aguilar, Francesca Cardinale, Luisella Celi
Summary: The study reveals that strigolactones play a crucial role in shaping the phosphorus acquisition strategies in tomato plants, with their depletion leading to inefficient activation of various mechanisms associated with the phosphorus starvation response. This results in reduced phosphorus uptake and increased carbon and nitrogen costs under both phosphorus-depleted and normal phosphorus conditions.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Plant Sciences
Said Khourchi, Abdallah Oukarroum, Asma Tika, Pierre Delaplace, Adnane Bargaz
Summary: This study evaluated the agro-physiological responses of durum wheat variety 'Karim' under different PolyPs applications. The results showed that application of PolyB and PolyC significantly increased root traits, shoot inorganic P content, and root P acquisition efficiency at D60. Above-ground physiological parameters, nutrient acquisition, chlorophyll content, and chlorophyll fluorescence parameters were also improved under PolyB and PolyA application at D60. The findings suggest that PolyPs have positive impacts on wheat growth performance and nutrient acquisition.
Review
Plant Sciences
Shengnan Zhu, Cuiyue Liang, Jiang Tian, Yingbin Xue
Summary: This review summarizes recent discoveries and molecular basis of plant adaptive mechanisms to low phosphate availability, providing insights into the molecular mechanisms underlying plant adaptation to phosphorus starvation and facilitating the development of crop cultivars with high phosphorus utilization efficiency.
Article
Biochemistry & Molecular Biology
Renwei Sun, Jie Gong, Yinke Du, Shengquan Zhang, Wei Zheng, Jinxiu Ma, Fengting Zhang, Yongjie Liu, Xiangzheng Liao, Hui Sun, Binshuang Pang, Changping Zhao, Shiqing Gao
Summary: The characteristics of phosphate starvation response regulators (PHRs) in hexaploid wheat and other major gramineous plants were systematically studied. The study identified 63 paralogous TaPHR pairs and revealed their conservation and roles in cellular response to phosphate starvation. The findings provide basic data for improving grain yield and environmental homeostasis.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Rigui Ye, Yunrong Wu, Zhenyu Gao, Hao Chen, Lixia Jia, Dongming Li, Xugang Li, Qian Qian, Yanhua Qi
Summary: The study focused on the function of OsAUX4 in regulating root development, including primary root elongation and root hair development. OsAUX4 was found to have both positive and negative effects on different aspects of root growth, and also participates in crosstalk between auxin and phosphate signaling pathways.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2021)
Review
Plant Sciences
Katherine E. Helliwell
Summary: Phosphorus (P) and nitrogen (N) are important nutrients for plant and algal growth. Recent research has revealed the molecular mechanisms of N and P acquisition and emphasized the need to study the synergistic interactions between them. It has been found that different organisms have distinct mechanisms for sensing P and N, although core P-starvation signaling components are conserved.
TRENDS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Alessandra Rogato, Vladimir Totev Valkov, Maurizio Chiurazzi
Summary: This study provides a general description of the regulatory transcriptional and spatial profile of expression of the Lotus japonicus nitrate transporter NRT2 family. The involvement of the LjNRT2.3 gene in root nitrate acquisition and lateral root elongation pathways under nitrogen starvation conditions is also reported, along with an epistatic relationship between LjNRT2.3 and LjNRT2.1 to optimize the plant's response to prolonged nitrogen starvation.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Jesus G. Zorrilla, Carlos Rial, Rosa M. Varela, Jose M. G. Molinillo, Francisco A. Macias
Summary: Strigolactones (SLs) have potential applications as agrochemicals to prevent infestation with parasitic weeds due to their ability to trigger seed germination. However, their use is limited due to low yields from natural sources. Different analogues of SLs have been synthesized and shown to have enhanced bioactivity. This review provides an overview of SLs synthesis, focusing on analogues with canonical structure. The germinating activity of these compounds has positive effects on problematic weed species. The highly active analogue, GR24, is extensively studied and structural-activity relationships have been proposed.
PHYTOCHEMISTRY REVIEWS
(2022)
Article
Plant Sciences
Nicolas Marro, Javier Lidoy, Maria Angeles Chico, Carlos Rial, Juan Garcia, Rosa M. Varela, Francisco A. Macias, Maria J. Pozo, Martina Janouskova, Juan A. Lopez-Raez
Summary: Nitrogen (N) and phosphorus (P) are essential macronutrients for plant growth, and Strigolactones (SLs) play a key role in regulating plant responses to phosphorus deficiency and mediating the N-P signaling interplay. SLs prioritize nitrogen status over phosphorus status in plants, affecting biosynthesis and modulating the expression of key regulatory genes in phosphate and nitrate signaling pathways. This suggests that SLs are involved in more physiological processes than previously proposed.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Agronomy
Christian Santander, Gladys Vidal, Antonieta Ruiz, Catalina Vidal, Pablo Cornejo
Summary: This study evaluated the impact of salinity as a eustressor on the functional quality of red lettuce. The results showed that moderate salt stress increased the phenolic compound concentration and antioxidant activity, while severe salt stress decreased antioxidant activity and biomass production.
Article
Agronomy
David M. Cardenas, Joanna Bajsa-Hirschel, Charles L. Cantrell, Carlos Rial, Rosa M. Varela, Jose M. G. Molinillo, Francisco A. Macias
Summary: This study evaluated the phytotoxic and antifungal activity of a novel family of natural C-17-sesquiterpenoids, finding that compounds such as Lappalone and pertyolide B exhibited strong activity, and the presence of the alpha-methylene-gamma-butyrolactone system is not essential for their bioactivities.
PEST MANAGEMENT SCIENCE
(2022)
Article
Food Science & Technology
Francisco J. R. Mejias, Alexandra G. Duran, Nuria Chinchilla, Rosa M. Varela, Jose A. Alvarez, Jose M. G. Molinillo, Francisco Garcia-Cozar, Francisco A. Macias
Summary: In this study, a variety of sesquiterpenes and benzoxazinoids, along with their derivatives, were evaluated for their inhibition potential against SARS-CoV-2. The addition of the 4-fluorobenzoate fragment was found to enhance the inhibition activity of these compounds. Molecular docking and molecular dynamics analysis were used to assess their interactions and stability.
Review
Plant Sciences
Catalina Vidal, Felipe Gonzalez, Christian Santander, Rodrigo Perez, Victor Gallardo, Cledir Santos, Humberto Aponte, Antonieta Ruiz, Pablo Cornejo
Summary: Drought poses a complex challenge to agriculture worldwide, requiring a reframing of agricultural practices from an integrative perspective. This involves the exploration of new water sources, the use of drought-tolerant crops and genotypes, improved irrigation systems, and other alternatives such as biotechnological tools to enhance water use efficiency. The role of specific microbial strains in the rhizosphere has been found to increase drought tolerance in host plants through plant growth-promoting characteristics. However, the use of multi-omics approaches to understand the interactions between plant growth-promoting microbes and host plants is still limited. This review highlights the importance of studying the soil-plant-microorganism interaction at a larger scale and suggests that multi-omics approaches can help improve crop yields and meet the increasing global demand for food.
Article
Agriculture, Multidisciplinary
Francisco J. R. Mejias, Suhang He, Rosa M. Varela, Jose M. G. Molinillo, Andrea Barba-Bon, Werner M. Nau, Francisco A. Macias
Summary: This paper presents a solution to the limited application of aminophenoxazinones and their sulfur mimics in agriculture, by utilizing host-guest complexation with cucurbiturils (CBn). Research shows that CB7 is the most suitable homologue due to its strong affinity for guest molecules and high water solubility. The formation of complexes was studied through direct titrations and UV-vis spectroscopy, showing preferential interaction with protonated aminophenoxazinone species. NMR characterization and stability analysis revealed pK(a) modulation and stabilization by cucurbiturils, enhancing the bioactivity of APO and DiS-NH2.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Plant Sciences
Javier Lidoy, Estefania Berrio, Marta Garcia, Luis Espana-Luque, Maria J. Pozo, Juan Antonio Lopez-Raez
Summary: A study found that flavonoids serve as signaling molecules in AM symbiosis, promoting spore germination and root colonization. This discovery opens up possibilities for using flavonoids to enhance symbiosis in agricultural products.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Laura Dejana, Beatriz Ramirez-Serrano, Javier Rivero, Jordi Gamir, Juan A. Lopez-Raez, Maria J. Pozo
Summary: The effect of phosphorus fertilization on plant and pest performance, as well as plant resistance to pathogens and insect herbivores, is dependent on the mycorrhizal status of the plant. The enhanced resistance in mycorrhizal plants is influenced by phosphorus availability and the priming of plant defenses.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Cristina Diaz-Franco, Carlos Rial, Jose M. G. Molinillo, Rosa M. Varela, Francisco A. Macias
Summary: Natural products are being explored as alternatives to synthetic herbicides in pest control. Aminophenoxazinones, a type of natural product, have shown promising potential as herbicides due to their phytotoxic effects. In this study, seven aminophenoxazinone derivatives were synthesized and their phytotoxicity was evaluated on wheat coleoptiles and two agricultural weeds. Some derivatives exhibited similar or even higher phytotoxic activity compared to the positive control, and the most active compound contained nitrogen atoms in its heterocycles. These findings highlight the potential of aminophenoxazinones as natural herbicides.
Article
Agronomy
Maria Eugenia Avila-Salem, Humberto Aponte, Fabian Montesdeoca, Narcisa Urgiles Gomez, Dayana Cruz, Marco Orellana, Katherine Pacheco, Soraya Alvarado Ochoa, Jose Espinosa, Fernando Borie, Pablo Cornejo
Summary: This study evaluated the effects of different tillage, nitrogen fertilization, and crop rotations on soil physicochemical and biological properties in an Andean soil. Results showed that no-tillage and crop rotation significantly influenced soil properties. No-tillage promoted soil respiration, glomalin content, and the density of arbuscular mycorrhizal fungi spores. The conservative soil management system demonstrated significant improvements in soil properties compared to intensive soil management.
Article
Agronomy
Francisco J. R. Mejias, Stefan Schwaiger, Rosa M. Varela, Jose M. G. Molinillo, Nuria Chinchilla, Francisco A. Macias
Summary: Eight compounds inspired by benzoxazinones were synthesized in one step and easily purified, with a sulfur atom replacing the oxygen atom. A new derivative obtained by a Rutkauskas-Beresnevicius reaction was also synthesized. These compounds were evaluated for their phytotoxicity in vitro, showing higher inhibition than benzoxazinones and the positive control, particularly at higher concentrations (1000 and 300 μM).
Article
Chemistry, Organic
Antonio Cala Peralta, Francisco J. R. Mejias, Jesus Ayuso, Carlos Rial, Jose M. G. Molinillo, Jose A. Alvarez, Stefan Schwaiger, Francisco A. Macias
Summary: Parasitic weeds are harmful plants that damage economically important crops, particularly in Mediterranean and African countries. The strategy of suicidal germination, using seed germination inducers, is proposed as a solution to reduce parasitic seed load before sowing. N-Substituted phthalimides with a furanone ring were found to be efficient in inducing germination of two problematic parasitic weeds, but their low solubility in water can be enhanced by forming host-guest complexes with cyclodextrins.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)