Article
Microbiology
Maria Vasseur-Coronado, Herve Dupre du Boulois, Ilaria Pertot, Gerardo Puopolo
Summary: This work proposes and validates a procedure to select the best plant growth promoting rhizobacteria (PGPR) as potential active ingredients of commercial PBs, leading to the selection of two bacterial strains belonging to Pantoea and Pseudomonas genera.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Plant Sciences
Qian Li, Huchen Li, Zhuang Yang, Xu Cheng, Yaceng Zhao, Ling Qin, Ton Bisseling, Qingqin Cao, Viola Willemsen
Summary: The study shows that plant growth-promoting rhizobacteria can alter root system architecture, with different bacteria strains having varying effects on root development. Activation of PLETHORA 3,5,7-dependent primed lateral pre-branch sites promotes root system architecture development.
Article
Agriculture, Multidisciplinary
Chongxi Liu, Lu Bai, Peng Cao, Shanshan Li, Sheng-Xiong Huang, Jidong Wang, Lei Li, Ji Zhang, Junwei Zhao, Jia Song, Peng Sun, Yanyan Zhang, Hui Zhang, Xiaowei Guo, Xilang Yang, Xinqiu Tan, Wende Liu, Xiangjing Wang, Wensheng Xiang
Summary: Food is a basic human right, but global food security is threatened by crop production. A novel plant growth regulator (PGR) called guvermectin (GV) has been discovered, which can promote root and coleoptile growth, tillering, and early maturing in rice. GV is similar to cytokinin (CK) but functions differently. GV also shows different growth-promoting traits compared to auxin, gibberellin (GA), and brassinosteroid (BR) in Arabidopsis and rice.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Genetics & Heredity
Oluwatosin Akinola Ajibade, Elijah Kolawole Oladipo, Stanford Kwenda, Zamantungwa Khumalo, Arshad Ismail, Julius Kola Oloke, Olubukola Monisola Oyawoye, Helen Onyeaka
Summary: The full genome of Enterobacter sichuanensis AJI 2411 was sequenced in this study to unravel the molecular mechanisms underlying its plant growth promoting abilities.
Article
Plant Sciences
Swapnil Sapre, Iti Gontia-Mishra, Sharad Tiwari
Summary: The study demonstrated that plant growth-promoting rhizobacteria (PGPR) improved the growth parameters of pea seedlings under salinity stress, with PGPR strain IG 27 showing better performance. Additionally, PGPR inoculation modulated biochemical parameters and reduced electrolyte leakage and H2O2 content under saline conditions, ultimately enhancing plant growth and yield in field trials with 100 mM NaCl stress.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Review
Agronomy
Naseer Ullah, Allah Ditta, Muhammad Imtiaz, Xiaomin Li, Amin Ullah Jan, Sajid Mehmood, Muhammad Shahid Rizwan, Muhammad Rizwan
Summary: According to research, compost, biochar, and plant growth-promoting rhizobacteria can collaborate to alleviate drought stress and enhance plant growth and productivity. Compost and biochar improve soil conditions, while plant growth-promoting rhizobacteria help increase plants' resistance to drought.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2021)
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)
Review
Plant Sciences
Kailash Chand Kumawat, Barkha Sharma, Sharon Nagpal, Ajay Kumar, Shalini Tiwari, Ramakrishnan Madhavan Nair
Summary: Soil salinity, caused by the changing climate, has become a serious problem worldwide, resulting in damaged soil quality, reduced agricultural production, and decreasing land areas, which has a negative impact on the national economy. Halo-tolerant plant growth-promoting rhizo-microbiomes (PGPRs) are evaluated as excellent agents in controlling biotic-abiotic stresses and promoting crop productivity in salinity-affected agriculture. PGPR-assisted modern agriculture practices have emerged as a green strategy to ensure sustainable farming and mitigate salinity-related stresses. The regulation of PGPR-induced signaling pathways and the application of gene editing tools like CRISPR can contribute to improved plant resistance and adaptability under climate change conditions. The utilization of omics technologies can also enhance crop yields in a sustainable manner, ultimately leading to improved vitality. However, the challenges of crop specificity, acceptance by farmers, and legal regulations need to be addressed for product commercialization in response to climate change.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Joanna Swiatczak, Agnieszka Kalwasinska, Anna Wojciechowska, Maria Swiontek Brzezinska
Summary: This study comprehensively characterized Brevibacillus laterosporus K75 and found that it significantly promotes maize growth. This research is important for finding safer alternatives to harmful pesticides.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Plant Sciences
Bingbing Duan, Lin Li, Guoqiao Chen, Chenxing Su-Zhou, Yashan Li, Hasmik Merkeryan, Wei Liu, Xu Liu
Summary: PGPRs producing ACC deaminase were isolated from grapevine rhizosphere in arid regions of China. Two strains, DR3 and DR6, showed high phosphate solubilization, nitrogen fixation, IAA, and exopolysaccharides secretion potential, effectively promoting grapevine growth under drought stress conditions. The inoculation with these PGPRs enhanced soil and plant nutrient levels, altered plant growth parameters, and improved grapevines' ability to cope with drought stress.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agricultural Engineering
Ning Li, Jie Wen, Ruohong Wu, Dongnan Hu, Ling Zhang, Wenyuan Zhang, Manyun Zhang
Summary: Understanding the effects of plant growth-promoting rhizobacteria (PGPR) on Moso bamboo growth, soil nutrient, and microbial community is important for improving Moso bamboo growth. This study established an experiment to quantify the effects of PGPR inoculation on Moso bamboo growth. The results showed that PGPR inoculations significantly increased Moso bamboo biomass, improved soil nutrient content and enzyme activity, increased soil microbial diversity, and stabilized the microbial community. The functional genes related to phosphorus solubilization played a substantial role in activating soil phosphorus. Overall, the applications of PGPR inoculations effectively improved microbial community stability and promoted Moso bamboo growth.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Review
Plant Sciences
Becky N. Aloo, Vishal Tripathi, Billy A. Makumba, Ernest R. Mbega
Summary: This review highlights the potential and importance of biofertilizers as sustainable crop production tools. Despite being studied and utilized worldwide, their full potential has not yet been realized.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Agronomy
Ma. del Carmen Orozco-Mosqueda, Aurora Flores, Blanca Rojas-Sanchez, Carlos A. Urtis-Flores, Luzmaria R. Morales-Cedeno, Maria F. Valencia-Marin, Salvador Chavez-Avila, Daniel Rojas-Solis, Gustavo Santoyo
Summary: Plant growth-promoting bacteria (PGPB) are beneficial for plant growth and can replace toxic agrochemicals, but their application in developing countries is limited. This study explores the mechanisms, application technologies, and solutions related to PGPBs, emphasizing their importance in sustainable agriculture.
Article
Green & Sustainable Science & Technology
Han Ren, Zilu Li, Hualin Chen, Jiangmin Zhou, Chengqun Lv
Summary: This study found that biochar and PGPR amendments have certain effects on soil microbial community function and diversity, and can maintain ecological sustainability and improve plant performance by altering soil physicochemical properties.
Article
Plant Sciences
Harry Jay M. Cavite, Ariel G. Mactal, Editha V. Evangelista, Jayvee A. Cruz
Summary: This study evaluated the effects of plant growth-promoting rhizobacteria (PGPR) isolates on enhancing upland rice growth and yield. Acidovorax delafieldii in combination with 50% RRIF was found to be as effective as full RRIF in enhancing growth and yield of PSB Rc23 rice. Further evaluation in actual field conditions is necessary to uncover the efficiency of these bacterial isolates as potential biofertilizer.
JOURNAL OF PLANT GROWTH REGULATION
(2021)
Article
Agriculture, Multidisciplinary
Helena Martin-Rivilla, Ana Garcia-Villaraco, Beatriz Ramos-Solano, Francisco J. Gutierrez-Manero, Jose A. Lucas
Summary: The study showed that using beneficial rhizobacteria and their metabolic elicitors can enhance the content of phenolic compounds in blackberry fruits, increase the levels of cyanidin and epicatechin, and have different effects on the anthocyanin, quercetin, and kaempferol derivative content in red and black fruits.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Plant Sciences
Ana Garcia-Villaraco, Lamia Boukerma, Jose Antonio Lucas, Francisco Javier Gutierrez-Manero, Beatriz Ramos-Solano
Summary: The study aimed to investigate the relationship between growth, protection, and photosynthesis induced by Pseudomonas fluorescens N21.4 in tomato plants challenged with Xanthomonas campestris, defining its priming fingerprint. Changes in photosynthesis, ROS scavenging cycle enzymes, and defense-related enzymes indicated a priming effect of N21.4, enhancing plant protection without compromising growth. The priming fingerprint included enhanced photochemical quenching, decreased energy dissipation, increased chlorophylls, enhanced ROS scavenging cycle enzyme activity, and increased glucanase and chitinase activity.
Article
Microbiology
Enrique Gutierrez-Albanchez, Ana Garcia-Villaraco, Jose A. Lucas, Ignacio Horche, Beatriz Ramos-Solano, F. J. Gutierrez-Manero
Summary: The novel Pseudomonas strain BBB001(T) was isolated from Nicotiana glauca rhizosphere in Spain and proposed as a new species Pseudomonas palmensis sp. nov. Genomic analysis, phenotypic features, and chemotaxonomic analysis differentiate BBB001(T) from other known species, showing high metabolic capability and plant cultivation effects.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Plant Sciences
Jose A. Lucas, Ana Garcia-Villaraco, Beatriz Ramos-Solano, Khalid Akdi, Francisco Javier Gutierrez-Manero
Summary: This study found that treating tomato plants with lipochitooligosaccharides (LCOs) under UV-B stress can significantly increase enzymatic activities related to reactive oxygen species (ROS) scavenging and reduce oxidative stress. Additionally, LCOs can improve the photosynthetic efficiency and physiological state of the plants.
Article
Microbiology
Estrella Galicia-Campos, Ana Garcia-Villaraco, M. B. Montero-Palmero, F. Javier Gutierrez-Manero, Beatriz Ramos-Solano
Summary: Bacillus H47 can enhance the adaptation of olive tree to dry and saline environments by activating plant metabolism and photosynthesis.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Estrella Galicia-Campos, Ana Garcia-Villaraco Velasco, Ma Belen Montero-Palmero, F. Javier Gutierrez-Manero, Beatriz Ramos-Solano
Summary: This study investigates the use of Plant Growth Promoting Bacteria (PGPB) to modulate plants' adaptive mechanisms to oxidative stress. The results demonstrate that PGPBs can improve plant fitness by influencing photosynthetic pigments and antioxidant molecules.
Article
Plant Sciences
Wanli You, Jinglin Zhang, Xueyin Ru, Feng Xu, Zhengguo Wu, Peng Jin, Yonghua Zheng, Shifeng Cao
Summary: This study investigated the effect of calcium chloride (CaCl2) treatment on GABA accumulation in fresh-cut cantaloupe and the underlying mechanisms. The results showed that CaCl2 treatment increased GABA content and the activities of GAD and SSADH enzymes, while reducing glutamate content and GABA-T activity. Additionally, CaCl2 treatment upregulated the expressions of CmCML11 and CmCAMTA5, as well as several GABA shunt genes, through the transcriptional activation by CmCAMTA5. Furthermore, the interaction between CmCML11 and CmCAMTA5 enhanced the transcriptional activation of GABA shunt genes. Overall, this study reveals that CaCl2 treatment promotes GABA accumulation in fresh-cut cantaloupe through the combined effect of CmCML11 and CmCAMTA5 in regulating the expressions of GABA shunt genes.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Min Wang, Yupeng Wang, Xiaohui Wang, Guangwei Wei, Huiyi Yang, Xi Yang, Tinghai Shen, Huijie Qu, Sheng Fang, Ziming Wu
Summary: This study identified the high nitrogen use efficiency (NUE) black sesame variety 17-156 and analyzed its underlying physiological and molecular mechanisms. The results showed that 17-156 possesses a sophisticated nitrogen metabolizing machinery to uptake and assimilate higher quantities of inorganic nitrogen, simultaneously improving carbon metabolism and growth. Many important genes were up-regulated in 17-156 under high nitrogen condition. Additionally, 38 potential candidate genes were identified for future studies to improve sesame's NUE. These findings provide valuable resources for understanding the regulatory network of nitrogen metabolism and developing sesame cultivars with improved NUE.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
He Dong, Chongmei Xu, Chengtao Zhang, Li Zhang, Yaqin Yao, Suiqi Zhang
Summary: The study found that short cells in maize leaves not only improve leaf mechanical support and photosynthetic performance, enhance drought resistance, but also participate in stomatal regulation.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Na Liu, Wenyan Shang, Mengxin Guan, Jibin Xiao, Guangxiang Tian, Baozhan Ma, Wenjing Shang, Xu Li, Shijia Zhao, Chuang Li, Kun Cheng, Wenming Zheng
Summary: This study cloned the full-length cDNA sequence of TaSPX3 gene in wheat and found that TaSPX3 responds to low phosphorus stress in multiple wheat genotypes. Overexpressing TaSPX3 can alleviate phosphorus deficiency symptoms and promote plant growth in Arabidopsis. The study also revealed the interaction of TaSPX3 with other genes related to the phosphorus starvation signaling pathway.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Kongyuan Wu, Lizhen Wang, Zihan Wu, Ziqing Liu, Zengfei Li, Jun Shen, Shengjie Shi, Hong Liu, Christopher Rensing, Renwei Feng
Summary: Selenium (Se) can reduce uptake and translocation of cadmium (Cd) in plants by regulating root morphology. This study investigated the effects of Se(IV) on root exudates, root morphology, root endogenous hormones, and Cd uptake efficiency in rice under Cd stress. The results showed that Se(IV) significantly reduced Cd concentrations in shoots and roots, and decreased Cd uptake efficiency via root hairs. Se(IV) also affected root morphology, root exudates, and the synthesis of hormones like IAA and JA. However, transcriptome analysis revealed no upregulated differentially expressed genes (DEGs) in IAA synthesis.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Di Wang, Huaifang Zhang, Xuefei Hu, Haizhen Zhang, Shuang Feng, Aimin Zhou
Summary: This study identified a cell number regulator gene called SlCNR8 in willow, which enhances resistance to trace metals in transgenic poplar seedlings. SlCNR8 reduces Cd uptake and accumulation, and can be used as a candidate gene for genetic improvement of phytostabilisation of trace metals.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)