Article
Green & Sustainable Science & Technology
Mst. Kaniz Fatema, Muhammad Abdullah Al Mamun, Umakanta Sarker, Muhammad Saddam Hossain, Muhammad Abdul Baset Mia, Rajib Roychowdhury, Sezai Ercisli, Romina Alina Marc, Olubukola Oluranti Babalola, Muhammad Abdul Karim
Summary: Drought stress negatively impacted the growth and biochemical content of soybean, but the genotype AGS383 was minimally affected and exhibited superior traits under drought conditions. This genotype showed healthier root and shoot growth, greater leaf area, higher photosynthesis, and better water absorption and potential compared to other genotypes. It also produced lower levels of proline and malondialdehyde. The heavier grains of AGS383 resulted in higher yield under both normal and drought conditions. Further research is needed to identify the genes responsible for AGS383's adaptation to drought stress.
Article
Plant Sciences
Yuxuan Miao, Yao Cai, Hao Wu, Dan Wang
Summary: The study found that elevated CO2 significantly increased the net photosynthetic rate of rice, especially during the jointing stage. This stimulation was acclimated with the advance of the growing season and was not affected by stomatal limitations or Rubisco activity.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Rui Zhu, Tiesong Hu, Fengyan Wu, Yong Liu, Shan Zhou, Yanxuan Wang
Summary: This study investigates the effects of water deficit and flooding stress on rice's intrinsic water-use efficiency (iWUE) and the relationship between iWUE variations and stress-induced physiological changes. The results show that water deficit and flooding stress decrease rice's photosynthetic and water transport capacities, leading to an increase in iWUE. However, improved iWUE cannot prevent yield reduction. Interestingly, the decrease in photosynthetic capacity is significantly correlated with the decline in water transport capacity. This study has important implications for understanding crop physiological responses to environmental stresses.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Forestry
Kenneth J. Davidson, Julien Lamour, Alistair Rogers, Shawn P. Serbin
Summary: Many terrestrial biosphere models rely on the relationship between stomatal conductance and photosynthesis. This study found that the choice of measurement method can impact parameters representing stomatal response, with afternoon measurements resulting in significantly different values. These differences in parameter estimates directly affect canopy function models.
Article
Plant Sciences
Qiangqiang Zhang, Wei Tang, Zhuang Xiong, Shaobing Peng, Yong Li
Summary: Stomata in rice panicle are regulated by water and panicle photosynthesis is less sensitive to drought than leaf photosynthesis. Enhancing non-foliar green tissues' photosynthesis is beneficial for increasing crop yield.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Hu Sun, Xiao-Qian Wang, Zhi-Lan Zeng, Ying-Jie Yang, Wei Huang
Summary: The effects of exogenous melatonin on photosynthetic performances have not been well clarified. This study found that exogenous melatonin delays the induction process of photosynthesis, aggravates carbon loss, and enhances the water-water cycle for photoprotection.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Alicia V. Perera-Castro, Beatriz Hernandez, Maria Jose Grajal-Martin, Agueda M. Gonzalez-Rodriguez
Summary: The drought resistance of several mango cultivars and their respective autotetraploids was evaluated. The tetraploid 'Gomera-1' showed delayed leaf water loss and maintained high levels of quantum efficiency and gas exchange compared to other cultivars. Therefore, using polyploids with water-saving physiological traits can improve the drought resistance of mango.
Article
Horticulture
Jalel Mahouachi, Alexandre D. Marcelino-Castro, Sergio J. Alvarez-Mendez, Antonio Urbano-Galvez
Summary: This study demonstrates the effectiveness of applying salicylic acid (SA) through irrigation in alleviating the damage caused by water deficit in papaya plants.
Article
Biochemistry & Molecular Biology
Miao Ye, Zhengcan Zhang, Guanjun Huang, Yong Li
Summary: This study investigated the effects of leaf anatomical traits and environmental stimuli on the photosynthesis of rice plants. It found that the response of mesophyll conductance to temperature was stronger at the mid-tillering stage and with high nitrogen treatment, which could be attributed to a higher activation energy of the membrane.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Hu Sun, Qi Shi, Ning-Yu Liu, Shi-Bao Zhang, Wei Huang
Summary: We found that drought stress delays the initiation of photosynthesis and exacerbates the loss of carbon gain under fluctuating light in tomato seedlings. Additionally, drought stress aggravates the over-reduction of photosystem I and suppresses the photoprotection of photosystem I. However, drought stress also enhances relative cyclic electron flow, which partially compensates for restricted CO2 fixation and promotes the photoprotection of photosystem I.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Nikolaos Konstantis, Konstantinos Koskorellos, Areti Balou, Athina Paravolidaki, George Garantziotis, Christina Eleni Koulopoulou, Athanasios Koulopoulos, George Zervoudakis
Summary: This study measured physiological parameters of wounded plants at different developmental stages and found that the plants' response to leaf wounding varied depending on the developmental stage. Basil plants at the vegetative stage were found to be more tolerant to leaf wounding compared to those at the budding and flowering stages.
Article
Forestry
Min-Hui Bi, Chao Jiang, Timothy Brodribb, Yu-Jie Yang, Guang-Qian Yao, Hui Jiang, Xiang-Wen Fang
Summary: Clarifying the mechanisms of gas exchange recovery after drought in plants is crucial for understanding plant drought adaptation and habitat distribution. However, these mechanisms are largely unknown. In this study, we investigated the role of ethylene in regulating stomatal reopening after moderate drought stress in Fraxinus chinensis seedlings. We found strong evidence that the slow stomatal reopening is regulated by a decrease in ethylene emission rate, rather than changes in leaf hydraulics or ABA levels. This finding opens up new possibilities for understanding plant drought adaptation.
Article
Agronomy
Klaudia Borowiak, Agnieszka Wolna-Maruwka, Alicja Niewiadomska, Anna Budka, Anita Schroeter-Zakrzewska, Rafal Stasik
Summary: The study showed a positive effect of using different types and concentrations of EM on the photosynthetic activity of scarlet sage, especially with the highest concentration application. There was minimal impact on soil activity, with only an increase in fungi quantity and dehydrogenase activity. Other soil biological status parameters showed significant variability with mostly small or no effects recorded.
Article
Plant Sciences
Rafael Ribeiro, Karine A. Vitti, Fernanda C. C. Marcos, Gustavo M. Souza, Maria D. Pissolato, Luiz Fernando R. Almeida, Eduardo C. Machado
Summary: Stability is a key trait for plant growth and development in a changing environment, involving homeostasis and resilience. Sugarcane plants exhibit memory effects after experiencing drought stress, which plays a significant role in plant stability. Measurements of plant homeostasis and resilience can help assess plant performance under stress conditions.
JOURNAL OF PLANT PHYSIOLOGY
(2021)
Article
Plant Sciences
Mariana Antonietta, Matias de Felipe, Shane A. Rothwell, Tom B. Williams, Patrick Skilleter, Alfonso Albacete, Lucas Borras, Mariana C. Rufino, Ian C. Dodd
Summary: Chilling can reduce the sensitivity of stomata to the hormone abscisic acid (ABA) in legumes. However, the mechanisms involved in this process are not clear. Through experiments, it was found that prolonged chilling decreased leaf water content but increased leaf ethylene evolution and concentrations of ethylene precursor and hormones like ABA and jasmonic acid. Stomatal conductance was found to decrease with foliar ABA accumulation, and the application of an ethylene antagonist partially reversed the excessive stomatal opening caused by chilling.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Omolayo J. Olorunwa, Bikash Adhikari, Ainong Shi, T. Casey Barickman
Summary: This study analyzed the morpho-physiological responses of 30 cowpea genotypes to waterlogging, revealing that under waterlogging conditions, cowpea plant height, leaf area, and weight decreased while water use efficiency and adventitious roots increased. Chlorophyll fluorescence parameters were also affected. The study identified waterlogging-tolerant and sensitive cowpea genotypes, which could be useful for genetic engineering and breeding programs aimed at improving cowpea waterlogging tolerance.
Article
Plant Sciences
Santosh Nayak, Hem Bhandari, Malay C. Saha, Shahjahan Ali, Carl Sams, Vince Pantalone
Summary: Switchgrass was evaluated for regrowth vigor after multiple cuttings, and quantitative trait loci (QTL) associated with regrowth vigor were identified. Significant variation in regrowth vigor was observed among different families, and 10 QTL were detected on 6 chromosomes. The results provide important insights into the genetic mechanisms underlying regrowth vigor in switchgrass.
Article
Plant Sciences
Abishkar Regmi, Sukhbir Singh, Naima Moustaid-Moussa, Cade Coldren, Catherine Simpson
Summary: The use of biochar can reduce the excessive use of peat moss and improve the growth and flowering of Viola plants in greenhouse production. However, the optimal biochar rate varies depending on plant cultivars and fertilization. Results suggest that up to 50% biochar can be used with the addition of fertilizer without negatively impacting plant growth, thus reducing the environmental and economic burden of peat moss.
Article
Environmental Sciences
Jonah E. Trevino, Muntazar Monsur, Carol S. Lindquist, Catherine R. Simpson
Summary: Passive and active interactions with nature can reduce stress, anxiety, and depression, but the COVID-19 pandemic has had a negative impact on the mental health of university students. However, outdoor interactions with nature have benefits that can alleviate these negative effects.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Agronomy
Akanksha Sehgal, Kambham Raja Reddy, Charles Hunt Walne, T. Casey Barickman, Skyler Brazel, Daryl Chastain, Wei Gao
Summary: Potential global climate change-related impacts on crop production have become a major research priority and societal concern in the past decade. This study conducted experiments on two Brassica species and found that multiple abiotic stresses, especially high UV-B levels, have detrimental effects on crop growth and development. However, elevated CO2 concentrations can alleviate some of the harmful impacts of high temperature and UV-B stresses.
Article
Plant Sciences
Omolayo J. Olorunwa, Bikash Adhikari, Skyler Brazel, Sorina C. Popescu, George V. Popescu, Ainong Shi, T. Casey Barickman
Summary: Waterlogging causes metabolic, physiological, and morphological changes in crops, resulting in yield loss. However, research on cowpea genotypes and their tolerance to waterlogging using physiological and biochemical traits is limited. This study evaluated the impacts of waterlogging on the physiology and biochemistry of two cowpea genotypes and found that UCR 369 may have a higher tolerance to waterlogging stress.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Plant Sciences
Omolayo Olorunwa, Bikash Adhikari, Skyler Brazel, Ainong Shi, Sorina Popescu, George Popescu, T. Casey Barickman
Summary: Waterlogging is a significant environmental stress that affects crop productivity, with cowpea being particularly sensitive during the reproductive stage. Different cowpea genotypes exhibit varying responses to waterlogging stress, with tolerant genotypes maintaining higher photosynthesis under stress. However, both genotypes struggle to fully recover their photosynthetic capacity after prolonged waterlogging.
Article
Biology
Akanksha Sehgal, Kambham Raja Reddy, Charles Hunt Walne, T. Casey Barickman, Skyler Brazel, Daryl Chastain, Wei Gao
Summary: Climate change poses serious challenges to global food security, with abiotic stresses being the main limiting factors for agricultural productivity. This study investigates the effects of UV-B radiation, CO2 concentration, and high temperature on the growth, yield, and biochemistry of kale and mustard. The results show that except for elevated CO2 levels, all traits declined significantly under individual and multi-stress conditions in both species.
Article
Horticulture
Catherine Simpson, Mamoudou Setamou, Shad D. Nelson
Summary: Perennial crops require year-round irrigation, especially in arid and semi-arid regions, like the Lower Rio Grande Valley in Texas. Flood irrigation, although less efficient, is widely used in this region to meet the water demands of citrus crops. This study investigated different grove floor management strategies and found that using ground cover can conserve water and improve tree growth and water use efficiency.
SCIENTIA HORTICULTURAE
(2023)
Article
Horticulture
Skyler R. Brazel, Omolayo J. Olorunwa, T. C. Barickman, Carl E. Sams, Jeff C. Wilson
Summary: This study examines the impact of sensor-based irrigation schemes and three treatments (overwatered, optimal, and underwatered) on the growth and nutritional content of 'Winterbor' kale. The results show that overwatering and underwatering treatments result in smaller morphological features compared to optimal treatment. However, there is no significant difference between overwatering and underwatering treatments. In terms of mass, optimally treated plants have the greatest mass, while underwatered treatment has reduced mass but still greater than overwatered treatment. Concentrations of mineral nutrients, glucosinolates, and pigments change with gas exchange and chlorophyll fluorescence measurements, showing both temporal and treatment variations. Apparent nutritional content is significantly reduced for overwatering and underwatering treatments compared to optimal treatment, but underwatered treatment has little impact on secondary metabolites and mineral nutrients.
SCIENTIA HORTICULTURAE
(2023)
Article
Green & Sustainable Science & Technology
Abishkar Regmi, Shital Poudyal, Sukhbir Singh, Cade Coldren, Naima Moustaid-Moussa, Catherine Simpson
Summary: Edible flowers are a valuable source of phytochemicals, but the composition of these compounds can be influenced by production practices. The effects of biochar on the phytochemical composition of Viola cornuta flowers were investigated, and it was found that different rates of biochar had varying effects on polyphenol and flavonoid concentrations. Fertilization was found to counteract the negative effects of biochar.
Article
Plant Sciences
Geeta Kharel, Madhav Dhakal, Sanjit K. Deb, Lindsey C. Slaughter, Catherine Simpson, Charles P. West
Summary: Semiarid pasture management strategies can have significant effects on soil hydraulic and thermal properties. Perennial pasture systems with increased soil organic matter have improved water storage and heat movement compared to annual systems. Grazed pastures, however, showed decreased water retention but did not affect heat flow, likely due to higher bulk density and contact between particles.
Article
Horticulture
Spencer R. Givens, Dustin S. Del Moro, Sarah E. Parker, Alexander G. Renny, Carl E. Sams, Kellie J. Walters
Summary: Controlled environment agriculture (CEA) operations need to improve resource-use efficiency, yield, and phytonutrient concentrations to remain competitive. Carotenoids, which have health promoting effects, are affected by environmental controls, including lighting. This research aimed to determine the extent to which light intensity influences carotenoid accumulation in green butterhead lettuce seedlings and if differences remain at harvest.
Article
Biochemistry & Molecular Biology
Waltram Ravelombola, Lindgi Dong, Thomas Casey Barickman, Haizheng Xiong, Aurora Manley, John Cason, Hanh Pham, Bazgha Zia, Beiquan Mou, Ainong Shi
Summary: This study conducted a genome-wide association study (GWAS) to identify SNP markers and investigate candidate genes for salt tolerance in cowpea. The study found significant associations between SNP markers on chromosomes 2 and 3 and leaf chlorophyll content and leaf injury score under salt stress in cowpea.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Horticulture
Tongyin Li, Xiaojie Zhao, Guihong Bi, T. Casey Barickman, Richard L. Harkess
Summary: This study investigated the effects of different nitrogen fertilization rates and container types on the growth, flower production, nitrogen and carbohydrate concentrations of Encore(R) azalea 'Chiffon'. The results showed that the use of paper biocontainers promoted plant growth and increased nitrogen uptake, while foliar urea spray improved the nitrogen status of azalea plants.
