Article
Biology
Alla Korobova, Ruslan Ivanov, Leila Timergalina, Lidiya Vysotskaya, Tatiana Nuzhnaya, Guzel Akhiyarova, Victor Kusnetsov, Dmitry Veselov, Guzel Kudoyarova
Summary: Depending on their habitat conditions, plants can alter biomass allocation patterns between different organs. Low light inhibits root growth while maintaining shoot elongation. Phytohormones coordinate processes in different plant organs by transmitting signals about environmental changes. They are synthesized in roots and shoots and transported through the xylem and phloem. The mechanism controlling the long distance transport of auxins for root growth under low light conditions remains unclear and requires further study.
Article
Plant Sciences
Mian Gu, Hengliang Huang, Hiroshi Hisano, Guangda Ding, Sheng Huang, Namiki Mitani-Ueno, Kengo Yokosho, Kazuhiro Sato, Naoki Yamaji, Jian Feng Ma
Summary: The HvSPDT gene in barley plays a crucial role in the distribution of phosphorus (P) to grains by preferentially transporting P from the xylem to the phloem. Knockout of HvSPDT decreases P allocation to new leaves and grains, leading to a considerable reduction in grain yield, especially under P-limited conditions.
Article
Agronomy
S. M. Nuruzzaman Manik, Md Quamruzzaman, Mark Livermore, Chenchen Zhao, Peter Johnson, Ian Hunt, Sergey Shabala, Meixue Zhou
Summary: Waterlogging is a major threat to crop growth and yield in high rainfall zones. Root cortical aerenchyma (RCA) formation is an important mechanism for waterlogging tolerance. Introducing RCA-QTL into commercial varieties can significantly improve yield under waterlogged conditions without negative effects on plant growth and grain quality.
FIELD CROPS RESEARCH
(2022)
Article
Plant Sciences
Zengke Ma, Juncheng Wang, Chengdao Li, Panrong Ren, Lirong Yao, Baochun Li, Yaxiong Meng, Xiaole Ma, Erjing Si, Ke Yang, Xunwu Shang, Huajun Wang
Summary: This study reveals the phosphorylation proteins in barley roots under P starvation and resupply conditions, and their functions in various metabolic pathways. The phosphorylated proteins show significant changes under P starvation and resupply conditions, mainly participating in carbohydrate metabolism, phytohormones, signal transduction, and other metabolic processes.
FRONTIERS IN PLANT SCIENCE
(2021)
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
Biochemistry & Molecular Biology
S. M. Nuruzzaman Manik, Md Quamruzzaman, Chenchen Zhao, Peter Johnson, Ian Hunt, Sergey Shabala, Meixue Zhou
Summary: This study used a genome-wide association analysis to identify marker trait associations related to adaptive traits in barley under waterlogged conditions. Adventitious roots and root cortical aerenchyma formation were key adaptive traits for waterlogging tolerance. Combinations of different marker trait associations were found to enhance barley's tolerance to waterlogging stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Katja Witzel, Andrea Matros, Uwe Bertsch, Tariq Aftab, Twan Rutten, Eswarayya Ramireddy, Michael Melzer, Gotthard Kunze, Hans-Peter Mock
Summary: The study identified a protein HvHorcH in barley that contributes to salt stress tolerance and accumulates in the root tip. This discovery may provide a new research direction for understanding how plants adapt to saline environments.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Rim Nefissi Ouertani, Dhivya Arasappan, Ghassen Abid, Mariem Ben Chikha, Rahma Jardak, Henda Mahmoudi, Samiha Mejri, Abdelwahed Ghorbel, Tracey A. Ruhlman, Robert K. Jansen
Summary: Barley, with its rich genetic diversity, serves as an important model for studying salt tolerance response. The response to salt stress mainly involves sensing and signaling pathways, transcriptional reprogramming, hormone and ion homeostasis regulation, reactive oxygen scavenging, as well as activation of transport and photosynthesis systems. This study identifies key genes involved in salt tolerance and highlights the complexity of gene regulation in roots under salt stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Cell Biology
Lidiya Vysotskaya, Leylya Timergalina, Guzel Akhiyarova, Alla Korobova, Vadim Fedyaev, Igor Ivanov, Guzel Kudoyarova, Dmitry Veselov
Summary: The study found that when concentrations of nitrates and phosphates are too high, root elongation in plants is inhibited, while the accumulation of ABA and cytokinins occurs at the root tips, with a decrease in cytokinin content in the shoots. This phenomenon was not observed in the ABA-deficient barley mutant, indicating the importance of plants' ability to accumulate ABA for controlling these responses.
Review
Agronomy
Giorgia Capasso, Giorgia Santini, Mariagioia Petraretti, Sergio Esposito, Simone Landi
Summary: Barley, a major crop globally, has been genetically improved for higher yields but weakened in resilience to adverse environments. Climate change demands crop varieties that can grow under stress conditions, where wild varieties and landraces may play a crucial role.
Article
Plant Sciences
Sebastian Zahn, Thomas Schmutzer, Klaus Pillen, Andreas Maurer
Summary: This study investigated the genetic control of barley peduncle morphology and identified three major QTL regions on chromosomes 2H and 3H impacting peduncle traits. The exotic allele at the QTL on chromosome 3H improved all three investigated traits, showing potential for enhancing plant stability and straw biomass production.
Article
Materials Science, Multidisciplinary
Shahida Anusha Siddiqui, Andrey Vladimirovich Blinov, Alexander Vladimirovich Serov, Alexey Alekseevich Gvozdenko, Alexander Aleksandrovich Kravtsov, Andrey Ashotovich Nagdalian, Vladislav Viktorovich Raffa, David Guramievich Maglakelidze, Anastasiya Alexandrovna Blinova, Anna Vitalievna Kobina, Alexey Borisovich Golik, Salam A. Ibrahim
Summary: Selenium nanoparticles stabilized by PVP C15 (8 +/- 2 kDa) and ascorbic acid have a positive effect on the germination of barley seeds, improving root and shoot length, number of roots, and seed germination rate. Selenium nanoparticles are found to be less toxic than selenous acid.
Article
Biochemistry & Molecular Biology
Zarina Akhtyamova, Tatiana Arkhipova, Elena Martynenko, Tatyana Nuzhnaya, Ludmila Kuzmina, Guzel Kudoyarova, Dmitry Veselov
Summary: The study revealed that an ABA-deficient barley mutant showed poor growth under salt stress, but rhizosphere inoculation with IB22 bacteria improved growth for both genotypes. The bacteria influenced ABA synthesis and catabolism processes, partially compensating for the mutant's ABA deficiency.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Environmental Sciences
Magdalena Kusiak, Malgorzata Sierocka, Michal Swieca, Sylwia Pasieczna-Patkowska, Mohamed Sheteiwy, Izabela Josko
Summary: The objective of this study was to evaluate the interaction between plants and nano-Cu under Cu deficiency. Nano-Cu and CuSO4 were applied to Hordeum vulgare L. to examine their effects on plant leaves. The analysis of Cu compounds-plant leaves interactions was conducted using spectroscopic and microscopic methods. The effects of Cu compounds on plant traits were determined after 1 and 7 days of exposure. The results showed that nano-Cu had a lower Cu content compared to CuSO4, and the changes in biochemical traits were mostly observed after 1 day. CuSO4 exposure induced oxidative stress, while nano-Cu at 100 mg L-1 demonstrated enhanced stress tolerance. Overall, nano-Cu showed promising effects on plant health.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Imen Ayachi, Rim Ghabriche, Ameni ben Zineb, Mohsen Hanana, Chedly Abdelly, Tahar Ghnaya
Summary: The effect of sodium chloride (NaCl) on cadmium (Cd) tolerance, uptake, translocation, and compartmentation in barley was studied. NaCl did not significantly affect plant development and biomass production, but Cd alone reduced plant development rate and biomass production. NaCl addition accentuated the Cd effect on plant growth. NaCl limited Cd accumulation in the roots and shoots by reducing Cd-absorption efficiency and translocation. However, NaCl increased Cd toxicity and limited plant yield.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)