Review
Biochemistry & Molecular Biology
Vladislav V. Yemelyanov, Roman K. Puzanskiy, Maria F. Shishova
Summary: Oxygen deficiency poses challenges to plant growth and crop yield worldwide. Plants have developed anatomical, developmental, and molecular adaptations to survive in oxygen-deficient conditions. Oxygen deprivation accelerates sugar metabolism, glycolysis, and lactic fermentation, leading to the accumulation of glucose, pyruvate, and lactate. Metabolites related to glycolysis and Krebs cycle are elevated, allowing alternative pathways of NAD(P)H reoxidation. Reoxygenation reduces levels of anaerobically induced metabolites. The metabolic profiles during native and environmental hypoxia are similar, characterized by the accumulation of fermentation products, succinate, fumarate, and amino acids.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Plant Sciences
Kurt Fagerstedt, Chiara Pucciariello, Ole Pedersen, Pierdomenico Perata
Summary: Recent progress in researching flooding and hypoxia/anoxia tolerance in plants has revealed individual and general mechanisms of tolerance. This research has investigated carbohydrate consumption, fermentation, aerenchyma development, and the oxygen-sensing mechanism, providing insights into the intracellular effects of flooding. The accumulated knowledge has been applied to breeding flood-tolerant crop cultivars and improving crop productivity under changing environments due to climate change.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Biology
Keita Tamura, Hidemasa Bono
Summary: Hypoxia is an abiotic stress in plants and flooding resulting from climate change is a major threat to crops. In this study, a meta-analysis of RNA sequencing data of Arabidopsis and rice under hypoxia was performed to identify candidate genes for novel molecular mechanisms in plants under hypoxia.
Review
Plant Sciences
Jose Leon, Mari Cruz Castillo, Beatriz Gayubas
Summary: Plants are highly adaptable to changing adverse environmental conditions, particularly in response to oxygen levels which have significant impacts on growth and development. The transition from hypoxia to reoxygenation can lead to cell damage due to oxidative stress, and further research is needed to understand this process. Studying molecular events related to gene expression regulation during hypoxia and reoxygenation will be crucial for improving agricultural biotechnology in the context of global climate change.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Eva Maria Gomez-Alvarez, Chiara Pucciariello
Summary: This review discusses the molecular mechanisms associated with germination and seedling establishment under oxygen shortage in rice and barley. Rice is able to germinate under low oxygen conditions by utilizing starch reserves through a specific molecular pathway, while barley is unable to germinate. The study provides valuable insights for genetic improvement programs.
Article
Agronomy
Tomas Byrne, James Grant, Petra Kock-Appelgren, Lena Forster, Thibauld Michel, Alexandra Miricescu, William T. B. Thomas, Emmanuelle Graciet, John Spink, Carl K. Y. Ng, Susanne Barth
Summary: Global climate change is causing increased rainfall in Northern Europe, leading to more field flooding and impacting crop yield. Researchers evaluated 403 winter barley cultivars for waterlogging tolerance and identified sensitive and tolerant cultivars. Variability in cultivar responses to waterlogging stress was observed in multi-season field trials, prompting the development of an enhanced phenotyping method to better assess cultivars' responses under controlled conditions.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Review
Plant Sciences
Miguel Gonzalez-Guzman, Aurelio Gomez-Cadenas, Vicent Arbona
Summary: Plant responses to low oxygen conditions are mainly regulated by ethylene, but other hormonal pathways such as gibberellins, auxin, and nitric oxide are also involved. Abscisic acid is traditionally considered a negative regulator of morphological adaptations to waterlogging, but recent evidence suggests a positive role in plant responses to hypoxia and recovery.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Plant Sciences
Kevin Daniel, Sjon Hartman
Summary: Plant submergence is a major abiotic stress that can be mitigated by changes in root growth behavior and adaptation to low oxygen conditions. Ethylene and hypoxia signaling play important roles in regulating these adaptive root growth responses. Future research should focus on more natural experimental designs to better understand how plants respond to and survive waterlogging.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Arkadipta Bakshi, Won-Gyu Choi, Su-Hwa Kim, Simon Gilroy
Summary: Flooding is a significant threat to global agriculture and food security, but plants have adaptive responses like flooding-triggered Ca2+ signaling that can help them survive this stress. By analyzing publicly available transcriptomic data from Arabidopsis, we identified genes related to Ca2+ signaling and found that CAX2 mutants showed enhanced survival and increased Ca2+ signals in response to flooding and hypoxia. These findings suggest an important role for vacuolar Ca2+ transport in the signaling systems that trigger flooding response.
Article
Biology
Iny E. Mathew, Hormat Shadgou Rhein, Ardawna J. Green, Kendal D. Hirschi
Summary: Based on the availability of oxygen, plant growth environment can be normoxic, hypoxic, or anoxic. Creating a hypoxic/anoxic environment is important for studying plant tolerance to low oxygen conditions. This study presents a simple method for creating anoxic conditions using an anaerobic atmosphere generation bag, which allows for the screening of a large number of plant samples.
Article
Plant Sciences
Max Herzog, Elisa Pellegrini, Ole Pedersen
Summary: This study aimed to investigate the factors that influence the oxygen status of plant tissues. Meta-analysis of over 1500 published oxygen measurements from 112 species revealed that the oxygen status of plant tissues is significantly affected by submersion, light, tissue type, and the interaction between light and submersion. Oxygen levels were particularly low in belowground rhizomes, potato tubers, and root nodules. The presence of light increased oxygen levels in shoots and roots by approximately 25% compared to darkness. However, the effect of light on oxygen levels interacted significantly with submersion, with a higher increase in oxygen levels in light during submersion compared to darkness. The correlation between ambient water column oxygen and shoot tissue oxygen was stronger in darkness during submersion. This study highlights the need for non-invasive methods for studying plant oxygen dynamics.
FUNCTIONAL PLANT BIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Chiara Pucciariello, Pierdomenico Perata
Summary: This review summarizes recent findings on the roles of ROS and NO under environmentally or developmentally defined low O-2 conditions. Research indicates that ROS and NO are emerging regulators in low O-2 signaling and crucial molecules in plant adaptation to flooding conditions.
Article
Biochemistry & Molecular Biology
Feifei Wang, Zhenxiang Zhou, Rong Liu, Yangyang Gu, Song Chen, Rugen Xu, Zhong-Hua Chen, Sergey Shabala
Summary: Soil flooding can affect soil properties, impacting the availability, uptake, and distribution of mineral nutrients in plant roots. This study investigated the effects of hypoxia, metal stress, and combined hypoxia + metal stress on ion absorption and distribution in different regions of barley roots. It was found that combined hypoxia and metal stress caused a greater reduction in plant biomass compared to single submergence or metal stress. Additionally, Fe and Mn accumulation was higher under metal stress than under combined stress, regardless of barley variety. The expression of Fe and Mn transporter genes was downregulated in both barley varieties under all three treatments in the mature zone, while HvMTP1 transcripts were affected differently in the two varieties under different stress conditions. The findings suggest that the extent of waterlogging tolerance in barley is associated with Fe and Mn absorption involving HvMTP1.
Article
Plant Sciences
Edi Wiraguna, Al Imran Malik, Timothy David Colmer, William Erskine
Summary: Grass pea showed higher tolerance to waterlogging and subsequent soil drainage compared to other grain legume species, with better seedling emergence and survival rates under waterlogged conditions. Grass pea was also more tolerant to hypoxia and anoxia during seed germination, demonstrating its superior waterlogging tolerance in relay sowing.
Review
Plant Sciences
Sjon Hartman, Rashmi Sasidharan, Laurentius A. C. J. Voesenek
Summary: Ethylene plays a crucial role in plant submergence by accelerating hypoxic response, stabilizing specific transcription factors, and potentially inducing autophagy and promoting reactive oxygen species amelioration.
Editorial Material
Cell Biology
Rashmi Sasidharan
NATURE REVIEWS MOLECULAR CELL BIOLOGY
(2022)
Review
Plant Sciences
Elena Loreti, Pierdomenico Perata
Summary: Plant miRNAs are small regulatory RNAs that regulate gene expression through gene silencing. Some miRNAs can be exchanged between plants, their pathogens, and parasitic plants. It has been discovered that miRNAs can also be secreted into the external environment and regulate gene expression and phenotype of nearby plants, defining a new concept in plant communication.
Article
Plant Sciences
Ava Verhoeven, Karen J. Kloth, Anne Kupczok, Geert H. Oymans, Janna Damen, Karin Rijnsburger, Zhang Jiang, Cas Deelen, Rashmi Sasidharan, Martijn van Zanten, Rene A. A. van der Vlugt
Summary: By transcriptome studies, a latent virus called Arabidopsis latent virus 1 (ArLV1) has been discovered in Arabidopsis thaliana plants. ArLV1 is highly seed-transmissible and may have unknown effects on plant performance in this model plant.
Review
Biotechnology & Applied Microbiology
Li-Bing Yuan, Mo-Xian Chen, Lin-Na Wang, Rashmi Sasidharan, Laurentius A. C. J. Voesenek, Shi Xiao
Summary: Submergence has significant effects on plant growth and metabolism, and the recovery process after submergence is crucial for plant survival. This article summarizes the challenges plants face during post-submergence recovery and discusses the regulatory mechanisms involved, as well as providing insights for future research.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Plant Sciences
Jian Yang, Iny Elizebeth Mathew, Hormat Rhein, Richard Barker, Qi Guo, Luca Brunello, Elena Loreti, Bronwyn J. Barkla, Simon Gilroy, Pierdomenico Perata, Kendal D. Hirschi
Summary: This study demonstrates that plants lacking a vacuolar H+/Ca transporter are more tolerant to anoxia and submergence. Calcium signals play an important role in anoxia tolerance and could be used to improve the submergence tolerance of crops.
Article
Multidisciplinary Sciences
Claudia Kiferle, Silvia Gonzali, Sara Beltrami, Marco Martinelli, Katja Hora, Harmen Tjalling Holwerda, Pierdomenico Perata
Summary: This study examines the involvement of iodine in tomato plant nutrition and its potential in salt stress tolerance. The results show that iodine promotes plant growth and fruit yield under normal conditions, and mitigates some negative effects of salt stress, improving plant tolerance to it.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Martina Rovere, Chiara Pucciariello, Claude Castella, Antoine Berger, Marco Forgia, Tran A. A. Guyet, Marc Bosseno, Marie Pacoud, Renaud Brouquisse, Pierdomenico Perata, Alexandre Boscari
Summary: This study revealed that MtERF74 and MtERF75 are important for nitrogen-fixing nodules in legumes, as they regulate the expression of hypoxia-responsive genes and maintain nitrogen fixation activity in nodules.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Alicja B. Kunkowska, Fabrizia Fontana, Federico Betti, Raphael Soeur, Gerold J. M. Beckers, Christian Meyer, Geert De Jaeger, Daan A. Weits, Elena Loreti, Pierdomenico Perata
Summary: Plants respond to oxygen deprivation by activating a set of hypoxia-responsive genes through a group of transcription factors. However, the activity of these factors is greatly reduced when the plant has limited sugar reserves, suggesting the involvement of another sensing pathway related to energy availability. The energy sensor target of rapamycin (TOR) is responsible for the oxygen sensing in plants, and its inhibition leads to a lower induction of hypoxia-responsive genes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Plant Sciences
Eva Maria Gomez-Alvarez, Alessandro Tondelli, Khac Nhu Nghi, Viktoriia Voloboeva, Guido Giordano, Giampiero Vale, Pierdomenico Perata, Chiara Pucciariello
Summary: A genome-wide association study identified a Laccase gene that is crucial for successful seed germination after submergence and recovery in a large barley panel. Flooding events caused by global climate change have a significant impact on crop production. Sensitive barley varieties exhibit underwater secondary dormancy due to lower oxygen permeability, which can be eliminated by nitric oxide donors. The discovery of the differently regulated Laccase gene in grain development provides insights for improving barley genetics and enhancing seed germination after short-term flooding.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Multidisciplinary Sciences
Donato Romano, Adriano Di Giovanni, Chiara Pucciariello, Cesare Stefanini
Summary: This study found that earthworms can survive in lunar regolith and improve soil fertility, which can be used for space farming by using local substrates.
Article
Plant Sciences
Hendrika A. C. F. Leeggangers, Natalia Yaneth Rodriguez-Granados, Monika Gyongyi Macias-Honti, Rashmi Sasidharan
Summary: This review summarizes the mechanisms underlying ethylene-dependent stress signals and adaptive strategies in flooded plants. Ethylene plays versatile roles in waterlogging tolerance, acting as both a local and long-distance signal during soil flooding and reoxygenation. The article discusses the internal and external factors contributing to ethylene versatility in waterlogging responses. Finally, it highlights the current challenges and future research directions, focusing not only on ethylene-mediated responses but also on flooding research applications in crop improvement.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Biodiversity Conservation
Martina Huber, Magdalena M. M. Julkowska, L. Basten Snoek, Hans van Veen, Justine Toulotte, Virender Kumar, Kaisa Kajala, Rashmi Sasidharan, Ronald Pierik
Summary: This study aims to improve weed suppression in rice farming by enhancing the crop's shading capacity, thus reducing the reliance on herbicide application and promoting environmental sustainability.
PLANTS PEOPLE PLANET
(2023)
Review
Plant Sciences
Kurt Fagerstedt, Chiara Pucciariello, Ole Pedersen, Pierdomenico Perata
Summary: Recent progress in researching flooding and hypoxia/anoxia tolerance in plants has revealed individual and general mechanisms of tolerance. This research has investigated carbohydrate consumption, fermentation, aerenchyma development, and the oxygen-sensing mechanism, providing insights into the intracellular effects of flooding. The accumulated knowledge has been applied to breeding flood-tolerant crop cultivars and improving crop productivity under changing environments due to climate change.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
