Article
Multidisciplinary Sciences
Jun Ohta
Summary: The Calvin-Benson cycle is the most important metabolic pathway for CO2 fixation and involves various intermediates. A recent study has discovered a novel variant of this cycle that bypasses fructose 1,6-bisphosphate (FBP), offering a simpler explanation for previous findings.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Qin Jiao, Jiahui Deng, Xiaoyan Zhao, Xiangfeng Yao, Min Li, Zhouyang Pei, Xiangdong Li, Xingyin Jiang, Fengwen Zhang
Summary: Oxathiapiprolin, a fungicide, effectively controls diseases caused by oomycetes. However, little research has focused on the effects of fungicides on crops. This study used transcriptomic and metabolomic analyses to investigate the physiological regulatory mechanisms of oxathiapiprolin on tobacco infected with Phytophthora nicotianae. The results showed that oxathiapiprolin increased photosynthetic rate and antioxidant enzyme activity in tobacco, and upregulated genes related to carbon metabolism, disease resistance, and amino acid synthesis. This comprehensive study provides insights into the physiological regulatory effects of oxathiapiprolin on tobacco and can contribute to the development of disease-resistant crop varieties.
PHYSIOLOGIA PLANTARUM
(2023)
Article
Plant Sciences
Benfu Wang, Xiaolong Yang, Jianping Cheng, Liang Chen, Yuanyuan Jiang, Hongying Bu, Yang Jiang, Ping Li, Cougui Cao
Summary: This study investigated the physiological mechanism of drought stress affecting photosynthetic capacity and grain yield in different rice cultivars. Drought stress caused a reduction in leaf photosynthesis and grain yield, with drought-tolerant cultivars showing better adaptation and higher photosynthetic rates. The maintenance of leaf water potential, photosynthetic rate, PSII efficiency, non-photochemical quenching, and increased antioxidant enzyme activities were crucial factors in achieving high photosynthesis levels, especially in drought-tolerant varieties.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Plant Sciences
Jian-Ping Lian, Chao Yuan, Yan-Zhao Feng, Qing Liu, Cong-Ying Wang, Yan-Fei Zhou, Qiao-Juan Huang, Qing-Feng Zhu, Yu-Chan Zhang, Yue-Qin Chen, Yang Yu
Summary: This study investigated the regulatory function of microRNA397 and its target gene LACCASE-15 in modulating flowering traits in rice. Overexpression of miR397 led to earlier heading dates and accelerated differentiation of the spikelet meristem, while overexpression of OsLAC15 resulted in delayed flowering and prolonged vegetative growth. The study also revealed the impact of miR397-OsLAC15 on carbohydrate accumulation and photosynthetic assimilation, ultimately enhancing the photosynthetic intensity in miR397-overexpressing rice plants. Furthermore, it was found that OsLAC15 regulates the photorespiration pathway and a high CO2 concentration could rescue the late flowering phenotype in OsLAC15-overexpressing plants.
Article
Plant Sciences
Erinaldo Gomes Pereira, Leandro Azevedo Santos, Maria Eduarda Pimentel de Melo, Ilara Gabriela Frasson Budzinski, Mayan Blanc Amaral, Marco Andre Alves de Souza, Andres Calderin Garcia, Manlio Silvestre Fernandes
Summary: The exposure of rice plants to complete cultivation cycles with low-N stress improves their adaptation to this condition, resulting in higher grain yield and quality.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Agronomy
Taiki Takahashi, Naoyuki Sato, Maya Matsunami, Hiroyuki Shimono
Summary: The use of hybrid rice can increase productivity, and there are significant differences in adaptability and yield among different genotypes. In cool climates with limited cropping windows, a field experiment comparing different cultivars showed that 'Togo 4' and 'Hokuriku 193' had the highest yields, up to 27% higher than the check cultivars. Thinning at full heading increased yield but decreased plant N concentration and leaf SPAD value. The results indicate that earlier maturation and increased source activity addition to greater sink capacity can achieve high yields in cool climates, regardless of hybrid or inbred rice.
FIELD CROPS RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Huawei Xu, Huihui Wang, Yanwen Zhang, Xiaoyi Yang, Shufang Lv, Dianyun Hou, Changru Mo, Misganaw Wassie, Bo Yu, Tao Hu
Summary: Bioengineering photorespiratory bypasses is an effective strategy to improve plant productivity by regulating photosynthesis. In this study, a new synthetic photorespiratory bypass called GMA bypass was successfully developed in rice chloroplasts using a transgene stacking system. The GMA bypass increased photosynthetic rates, improved grain yields, and did not reduce seed-setting rate in rice, indicating proper modulation of the photorespiratory bypass. These findings suggest that engineering the GMA bypass can enhance rice growth and grain yield without compromising seed-setting rate.
PLANT COMMUNICATIONS
(2023)
Article
Plant Sciences
Shoumik Saha, Shampa Purkayastha, K. Nimitha, Sebantee Ganguly, Subhadeep Das, Shamba Ganguly, Nilanjan Sinha Mahapatra, Kriti Bhattacharya, Dibakar Das, Arup K. Saha, Tirthankar Biswas, Prabir K. Bhattacharyya, Somnath Bhattacharyya
Summary: This study investigated the physiological mechanisms of shade tolerance and trait plasticity in rice genotypes. It was found that tolerant genotypes maintained a high net photosynthesis rate under shade by limiting specific leaf weight and increasing intercellular CO2 concentration. On average, net photosynthesis was enhanced by 20% under shade, and biomass accumulation was observed. However, no correlation was observed between photosynthetic plasticity and biomass accumulation.
FUNCTIONAL PLANT BIOLOGY
(2023)
Article
Plant Sciences
Darshan Panda, Goutam Kumar Dash, Soumya Mohanty, Sudhanshu Sekhar, Ansuman Roy, Chandamuni Tudu, Lambodar Behera, Baishnab C. Tripathy, Mirza Jaynul Baig
Summary: The rice phytochrome A mutant (phyA) shows poor growth and decreased photosynthesis under both low and normal light conditions, mainly due to the weaker function of phyA. The chlorophyll content, photosynthetic capacity, and yield of phyA mutants decrease more significantly than WT plants under low light conditions.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Haowen Luo, Yulin Chen, Longxin He, Xiangru Tang
Summary: The application of La significantly increased the 2-AP content in aromatic rice, as well as the chlorophyll content, net photosynthetic rate, and total aboveground biomass. Additionally, La treatment resulted in higher grain yield, grain number per panicle, and seed-setting rate of aromatic rice, while decreasing the grain proline and gamma-aminobutyric acid contents.
Article
Agronomy
Haowen Luo, Meiyang Duan, Longxin He, Shuying Yang, Yingbin Zou, Xiangru Tang
Summary: The study introduced a new organic-inorganic compound fertilizer for fragrant rice production, which significantly increased grain yield, effective panicle number, seed-setting rate, chlorophyll content, net photosynthetic rate, and 2-AP content. Compared with traditional fertilizers, the OICF treatment showed superior performance in promoting fragrant rice growth and aroma synthesis.
Article
Biochemistry & Molecular Biology
Chunhua Lv, Zhenghua Hu, Jian Wei, Yin Wang
Summary: The maternal carbon dioxide environment affects the response of rice offspring to elevated carbon dioxide, resulting in decreased stomatal density and photosynthetic benefits. These findings contribute new insights into predicting future crop growth and yield.
PLANT MOLECULAR BIOLOGY
(2022)
Article
Biology
Sajid Hussain, Satyabrata Nanda, Muhammad Ashraf, Ali Raza Siddiqui, Sajid Masood, Maqsood Ahmed Khaskheli, Muhammad Suleman, Lianfeng Zhu, Chunquan Zhu, Xiaochuang Cao, Yali Kong, Qianyu Jin, Junhua Zhang
Summary: The research investigated the effects of ABA and BRs on rice growth characteristics and spikelet development. The results showed that exogenous application of ABA, BRs, and ABA+BRs triggered changes in physiological and agronomic characteristics, and significantly reduced spikelet sterility. This study provides new insights into rice spikelet development under salt stress and the effects of ABA and BR, as well as information on improving rice yield under salt stress and enhancing the utilization of salt-affected soils.
Article
Biochemical Research Methods
Jaspinder Singh Dharni, Balpreet Kaur Dhatt, Puneet Paul, Tian Gao, Tala Awada, Harel Bacher, Zvi Peleg, Paul Staswick, Jason Hupp, Hongfeng Yu, Harkamal Walia
Summary: A new method has been developed to monitor temporal changes in panicle physiology during reproductive development by non-destructive and accurate determination of panicle area and photosynthetic parameters. This method is useful for panicle-level measurements under diverse environmental stresses, and is sensitive enough to evaluate genotypic variation for panicle physiology and architecture in cereals with compact inflorescences.
Article
Plant Sciences
Xinpeng Zhou, Zhanming Tan, Yaguang Zhou, Shirong Guo, Ting Sang, Yu Wang, Sheng Shu
Summary: Exogenous GR24 was found to improve the growth, photosynthetic efficiency, and antioxidant capacity of cucumber seedlings under low light stress.
Article
Plant Sciences
Rahul Kumar Tiwari, Ravinder Kumar, Milan Kumar Lal, Awadhesh Kumar, Muhammad Ahsan Altaf, Rajni Devi, Vikas Mangal, Safina Naz, Muhammad Mohsin Altaf, Abhijit Dey, Tariq Aftab
Summary: Melatonin and polyamines are widely found in plants and play crucial roles in various physiological processes and abiotic stress responses. Melatonin-induced regulation of polyamine metabolism enhances stress tolerance through activation of antioxidant enzymes and maintenance of ionic homeostasis. Melatonin-polyamine crosstalk with other hormones, such as salicylic acid, abscisic acid, and ethylene, forms a complex defense activation network. This study provides insights into the regulatory role of melatonin in polyamine metabolism and its involvement in stress tolerance mechanisms, as well as the potential hormonal crosstalk.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Muhammad Ahsan Altaf, Rabia Shahid, Ravinder Kumar, Muhammad Mohsin Altaf, Awadhesh Kumar, Latif Ullah Khan, Muhammad Saqib, Muhammad Azher Nawaz, Bushra Saddiq, Saraj Bahadur, Rahul Kumar Tiwari, Milan Kumar Lal, Safina Naz
Summary: The changing climate poses a significant threat to global horticultural crop production. Phytohormones and phytohormone-like plant growth regulators play crucial roles in stress response and tolerance in horticultural crops. Understanding the complex interactions between different phytohormones and their signaling pathways can advance the development of stress-tolerant cultivars.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Agriculture, Multidisciplinary
Rameswar Prasad Sah, Amrit Kumar Nayak, Anilkumar Chandrappa, Sasmita Behera, Muhammed T. P. Azharudheen, G. Roopa Lavanya
Summary: In this study, cgSSR markers were designed and used to identify genomic regions that contribute to panicle characters and grain yield. The results showed that these markers are highly informative. Significant marker-trait associations were discovered for four panicle characters and grain yield. These associations can be leveraged to accumulate favourable alleles for yield enhancement in rice through marker-assisted breeding.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Agriculture, Multidisciplinary
Nandini Sahu, Basana Gowda Gadratagi, Ladu Kishore Rath, Anilkumar Chandrappa, Rameswar Prasad Sah, Lopamudra Mandal, Guru Pirasanna Pandi Govindharaj, Naveenkumar B. Patil, Totan Adak, Annamalai Mahendiran, Prakash Chandra Rath
Summary: Damage caused by Asian rice gall midge is more common in the rice-growing areas of southern and northeastern India. This study identified genomic regions for resistance to gall midge in a population of 202 rice genotypes. The marker gm3del3 showed the highest genetic variation, followed by RM28574, while marker RM22709 had minimal variation.
ANNALS OF APPLIED BIOLOGY
(2023)
Article
Agronomy
Tapas Ranjan Sahoo, Biswaranjan Behera, Rabindra Kumar Paikaray, Lalita Mohan Garnayak, Debadatta Sethi, Satyananda Jena, Md Basit Raza, Rabindra Kumar Panda, Baiquan Song, Milan Kumar Lal, Awadhesh Kumar
Summary: The study evaluated the effect of sunflower residue management on the productivity and profitability of subsequent rice crop, and found that combining sunflower residues with transplanting method achieved the best weed suppression and soil nutrient utilization, resulting in increased rice productivity and profitability. This research is significant for improving rice-based cropping systems and developing climate-smart agriculture practices in Eastern India and similar agroecological regions.
FIELD CROPS RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Ravinder Kumar, Priyanka Kaundal, Rahul Kumar Tiwari, Milan Kumar Lal, Hema Kumari, Rakesh Kumar, Kailash Chandra Naga, Awadhesh Kumar, Brajesh Singh, Vinay Sagar, Sanjeev Sharma
Summary: Potato virus transmission is always possible due to the vegetative development of potatoes from tubers. The potato leafroll virus (PLRV) is a highly destructive virus and is considered the second-most destructive virus after Potato virus Y. Multiple aphid species transmit PLRV, causing significant yield and quality reduction. The RT-RPA method was used to detect PLRV in both potato tubers and leaves with high sensitivity and efficiency, making it a valuable tool for virus detection and monitoring.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Applied
Awadhesh Kumar, Milan Kumar Lal, Soumya Kumar Sahoo, Goutam Kumar Dash, Upasana Sahoo, Biswaranjan Behera, Lopamudra Nayak, Torit Baran Bagchi
Summary: Rice is a staple food for billions of people and its bioavailability of iron and zinc is affected by phytic acid. A study found that while a genotype with high iron content had low bioavailability, possibly due to its high phytic acid content. Phytic acid mainly affects the bioavailability of iron, but has less effect on zinc, which is evenly distributed in the rice grain. The study also identified genes related to phytic acid synthesis and grain-specific phosphorus transporter genes that are expressed during grain filling and correlated with phytic acid accumulation. This research provides insights for breeders to develop rice genotypes with higher bioavailability of iron and zinc by targeting phytic acid related genes.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Review
Plant Sciences
Muhammad Ahsan Altaf, Sayanti Mandal, Biswaranjan Behera, Vikas Mangal, Safina Naz, Ravinder Kumar, Awadhesh Kumar, Mimosa Ghorai, Brajesh Singh, Abhijit Dey, Rahul Kumar Tiwari, Milan Kumar Lal, Tariq Aftab
Summary: Solanaceous crops, such as tomatoes and potatoes, are consumed as vegetables for their nutritional properties. Salinity stress is a significant factor that affects the growth and development of solanaceous crops. Genome editing with CRISPR/Cas9 has shown promise in improving agronomic and physiological traits, particularly in developing salt-tolerant solanaceous crops.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Review
Horticulture
Muhammad Ahsan Altaf, Nitin Sharma, Jagmohan Singh, Mahesh Kumar Samota, Parul Sankhyan, Brajesh Singh, Awadhesh Kumar, Safina Naz, Milan Kumar Lal, Rahul Kumar Tiwari, Ravinder Kumar
Summary: The use of plant growth regulators in horticultural crop production is common for improving produce quality and alleviating stresses. The indolamine compound melatonin (MEL) has emerged as a multifunctional molecule that regulates various aspects of growth and stress tolerance in solanaceous vegetable crops. It acts through reactive species signaling, hormonal cross-talk, and modulation of gene expression.
SCIENTIA HORTICULTURAE
(2023)
Review
Plant Sciences
Beena Radha, Nagenahalli Chandrappa Sunitha, Rameswar P. Sah, Md T. P. Azharudheen, G. K. Krishna, Deepika Kumar Umesh, Sini Thomas, Chandrappa Anilkumar, Sameer Upadhyay, Awadhesh Kumar, Ch L. N. Manikanta, S. Behera, Bishnu Charan Marndi, Kadambot H. M. Siddique
Summary: Abiotic stresses have negative effects on rice yield and productivity, especially in the face of changing climate. The combined effect of multiple abiotic stresses worsens these effects. The projected increase in global temperatures, rainfall variability, and salinity will further intensify the frequency and intensity of multiple abiotic stresses. Understanding the molecular and physiological mechanisms behind the reduction in grain quality under these stresses is crucial for developing cultivars that can withstand them. This review summarizes the impact of various stresses on rice physiology, particularly on grain quality parameters and yield traits, and discusses strategies for improving grain quality using high-throughput phenotyping and omics approaches.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Krishnendu Chattopadhyay, Torit Baran Bagchi, Priyadarsini Sanghamitra, Sutapa Sarkar, C. Anilkumar, Bishnu Charan Marndi, Awadhesh Kumar, Nutan Moharana, Shuvendu Shekhar Mohapatra, Soumya Kumar Sahoo
Summary: Public awareness is increasing for nutritionally superior brown and pigmented rice, which often lacks in eating and cooking quality. Understanding the inheritance patterns of these traits is vital for molecular improvement. A holistic approach was used to identify genomic regions regulating 17 grain traits, with significant associations found across all chromosomes. Marker-trait associations were found for protein and metal content, cooking quality, grain protein, amylose content, zinc content, cooking time, iron content, and grain size. Co-localized loci for nutritional and quality traits can guide biofortification programs without affecting consumer preference.
Article
Plant Sciences
Awadhesh Kumar, Goutam Kumar Dash, Soumya Kumar Sahoo, Milan Kumar Lal, Upasana Sahoo, Rameswar Prasad Sah, Umakanta Ngangkham, Sudhir Kumar, Mirza Jaynul Baig, Srigopal Sharma, Sangram Keshari Lenka
Summary: In cereals and legumes, phytic acid (PA) serves as a phosphorus reserve for growth and has both antioxidant activity and ability to bind minerals. Although it is considered an anti-nutritional factor due to its reduced bioavailability of minerals and proteins, PA has various health benefits including lowering the risk of diabetes and some cancers, improving heart health, and preventing kidney stone formation. Additionally, it has been found to be effective against foodborne bacteria. This paper provides an overview of phosphorus transport in plants, PA biosynthesis, its beneficial and anti-nutritional effects, and dephytinization methods.
PHYTOCHEMISTRY REVIEWS
(2023)
Article
Environmental Sciences
Priyanka Lal, Biswaranjan Behera, Malu Ram Yadav, Eshita Sharma, Muhammad Ahsan Altaf, Abhijit Dey, Awadhesh Kumar, Rahul Kumar Tiwari, Milan Kumar Lal, Ravinder Kumar
Summary: The study made a bibliometric analysis of groundwater access and management, finding that earth sciences and environmental sciences published the most relevant articles. Most of the research focused on Sustainable Development Goal 6, which is about ensuring access to clean water and sanitation. The study also showed that the United States had the most impact and research in groundwater investigation, with other countries clustering around it.
Article
Microbiology
Rahul Kumar Tiwari, Milan Kumar Lal, Ravinder Kumar, Sanjeev Sharma, Vinay Sagar, Awadhesh Kumar, Brajesh Singh, Rashmi Aggarwal
Summary: Potato dry rot disease caused by multiple Fusarium species poses a significant concern for potato production. The study demonstrated that Fusarium sambucinum was more virulent than Fusarium solani and that the combined infection of both species led to increased rot development. Infection by the fungi resulted in the reduction of starch and amylose content, increased starch digestibility, and deterioration of resistant starch in infected tubers. These findings highlight the potential impact on quality parameters and industry stakeholders and consumers should be concerned.
Article
Environmental Sciences
Rabi N. Sahoo, Shalini Gakhar, Rajan G. Rejith, Jochem Verrelst, Rajeev Ranjan, Tarun Kondraju, Mahesh C. Meena, Joydeep Mukherjee, Anchal Daas, Sudhir Kumar, Mahesh Kumar, Raju Dhandapani, Viswanathan Chinnusamy
Summary: This study proposes a hybrid approach of radiative transfer modeling and machine learning algorithm for the retrieval of leaf area index (LAI) and canopy chlorophyll content (CCC) of wheat cropland using high-spatial-resolution hyperspectral imagery from unmanned aerial vehicles (UAVs). The results show that the ML Gaussian process regression (GPR) algorithm exhibits superior accuracy and lower uncertainty in the retrieval of crop traits. The optimized GPR models tailored for UAV-borne hyperspectral data enable near-real-time retrieval of wheat traits, facilitating efficient crop monitoring and management.
