Article
Forestry
Stephanie Ribeiro, Maria Joao Gaspar, Jose Lima-Brito, Teresa Fonseca, Paula Soares, Adelaide Cerveira, Paulo M. Fernandes, Jose Louzada, Ana Carvalho
Summary: Climate change will increase the frequency of drought, heat waves, and wildfires. The study analysed the effects of fire recurrence and induced water stress on seed germination and root cell division in Pinus pinaster Aiton. Results showed that osmotic stress and fire recurrence did not significantly influence the germination index of the seeds. However, high PEG concentration inhibited root growth after germination, while moderate PEG concentration induced cytogenetic anomalies, particularly in areas exposed to fire. Fire recurrence seemed to reduce the water stress response, negatively impacting cell division and root growth.
Article
Plant Sciences
Wagdi Ghaleb, Philippe Barre, Beatrice Teulat, Lina Qadir Ahmed, Abraham J. Escobar-Gutierrez
Summary: Seed dormancy and inhibition are adaptive mechanisms that ensure seedlings are established at the most favorable time and place. This study investigated the genetic control and selective breeding potential of thermal requirements for germination in perennial ryegrass. The results showed that thermoinhibition at 10 and 32 degrees C in a natural population of perennial ryegrass has a genetic basis, with a single recessive gene involved at 10 degrees C.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Marine & Freshwater Biology
Arvind Bhatt, David J. J. Gallacher, Alfredo Jarma-Orozco, Denise Fernandes, Marcelo F. F. Pompelli
Summary: This study assessed the variation in seed germination among different populations of two desert halophytes and examined the correlation between seed fresh weight and germination. The results showed that the provenance had a significant impact on the germination of Suaeda vermiculata seeds, while the impact was less clear for Arthrocnemum macrostachyum. Additionally, a lower soil pH promoted seed germination.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Horticulture
Javier Sanchez, Francisco Albornoz, Samuel Contreras
Summary: This study investigated the effect of nitrogen fertilization on tomato seed yield and quality. The results showed that increasing nitrogen fertilization led to a decrease in seed weight, but had no effect on standard germination and mean germination time. The germination percentage and rate decreased when seeds were immersed in solutions with reduced osmotic potential, but this effect was less pronounced in seeds from the high nitrogen treatment. Additionally, seeds from the high nitrogen treatment exhibited greater longevity when evaluated after accelerated aging.
Article
Agronomy
Monika Vidak, Boris Lazarevic, Monika Nekic, Zlatko Satovic, Klaudija Carovic-Stanko
Summary: Winter savory is an important medicinal, aromatic, and honey plant that grows in dry areas. The study found that hormonal priming can mitigate the negative effects of extreme drought on seed germination.
Article
Chemistry, Applied
Daxing Wen, Haicheng Xu, Mingrong He, Chunqing Zhang
Summary: This study investigated differentially abundant proteins of wheat seeds produced under two nitrogen levels before and after germination, identifying a varying number of DAPs at different time points. GO enrichment and KEGG pathways analysis revealed key details, while validation experiments supported the proteomic results.
Review
Plant Sciences
Eshan Sharma, Manoj Majee
Summary: This review discusses recent advances in understanding the molecular and cellular mechanisms that generate variability in germination among genetically similar seeds. Plants have evolved a 'bet-hedging' strategy to survive in unpredictable environments, where high individual variation and a range of phenotypes are produced. While variability in seed behavior is beneficial for plant survival, it is not desirable in agriculture, where uniform seedlings are preferred. The review explores the hormonal, molecular, and cellular mechanisms that influence the germination outcome of genetically identical seeds.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Horticulture
Zhenjiang Xu, Mei Yang, Zhaoyang Li, Jian Xiao, Xueqin Yang, Hao Wang, Xiaofeng Wang
Summary: Cell wall mechanical strength is partially controlled by pectin methylesterification, which involves the action of pectin methylesterases (PMEs). In this study, the rupture of the lettuce endosperm cap during seed germination was shown to be caused by cell rupture rather than cell separation. The status of pectin methylesterification and PME activities changed during seed germination, with the endosperm cap having lower PME activities and higher pectin methylesterification compared to the radicle. Tissue-specific pectin methylesterification and PME activities were found to play a role in lettuce seed germination.
SCIENTIA HORTICULTURAE
(2022)
Article
Engineering, Environmental
Yan Yang, Guoying Wang, Guoxue Li, Ruonan Ma, Yilin Kong, Jing Yuan
Summary: The study systematically investigated the germination percentage and root length of seeds of 17 species to determine suitable seeds for evaluating compost maturity with the GI. Seeds of eight selected species were used to determine the GI of chicken manure composted with differing proportions of tobacco powder and mushroom substrate, with hybrid cucumber seeds showing the best representation of biological toxicity of the compost.
Article
Plant Sciences
Jin Xie, Yao Li, Gaoqian Jiang, Hongyong Sun, Xiaojing Liu, Lipu Han
Summary: This study investigated the effect of seed color on the germination and growth of alfalfa under salt stress. The results showed that brown seeds had significantly lower germination and seedling performance compared to green and yellow seeds. Yellow seeds exhibited higher vigor. Factors such as water uptake rate and hormone content may have contributed to the differences in stress resistance among seed colors.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jun Xia, Xianzhe Hao, Tangang Wang, Huiqin Li, Xiaojuan Shi, Yongchang Liu, Honghai Luo
Summary: Exogenous substances play a significant role in promoting cotton seed germination under low-temperature conditions. Among the tested substances, exogenous gibberellin (GA(3)) had the best effect on germination, regulating the balance of endogenous hormones, enhancing key enzyme activities, and reducing the accumulation of active oxygen. This study provides insights into improving the low-temperature tolerance of cotton seeds during the germination stage.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Food Science & Technology
Qingqing Qin, Jia Liu, Shumin Hu, Jianjun Dong, Junhong Yu, Li Fang, Shuxia Huang, Lushan Wang
Summary: This study analyzed the mechanisms of malting performance variance among different barley cultivars, especially Chinese barley Gan-7. Differential expression proteins play crucial roles in genetic information processing and carbohydrate metabolism pathways, with the low alpha-amylase abundance being related to poor alpha-amylase activity in Gan-7. The findings provide insights for optimizing the malting process for Chinese domestic barley cultivars, particularly Gan-7.
JOURNAL OF CEREAL SCIENCE
(2021)
Article
Multidisciplinary Sciences
Zdzislaw Kaliniewicz, Andrzej Anders, Piotr Markowski, Pawel Tylek, Danuta Owoc
Summary: The relationships between the basic physical properties of seeds from different spindle species were assessed to determine differences and sorting methods. Additionally, seeds were ranked based on their geometric mean diameters to provide guidance for seed separation.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Yutao Huang, Gaofu Mei, Dongdong Cao, Yebo Qin, Liu Yang, Xiaoli Ruan
Summary: The present study found that Spermidine (Spd) application can effectively alleviate the damage caused by heat stress during seed development and promote subsequent seed germination and seedling establishment. In addition, Spd can enhance heat tolerance and germination ability of seeds under heat stress by regulating processes such as starch synthesis, antioxidant defense, starch decomposition, and energy supply.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Yu Wu, Huimin Liu, Jie Bing, Genfa Zhang
Summary: Seed germination is crucial for plant survival and agriculture, and is influenced by various factors. The key enzyme enolase 2 (ENO2) plays an important role in plant growth and stress response. Our study showed that under salt stress, the seed germination rate was lower in the AtENO2 mutation compared to the wild type. Transcriptome and proteome analyses revealed differential expression of genes and proteins related to stress response, phytohormone signal transduction, and reactive oxygen species (ROS) in the AtENO2 mutation. Additionally, GAPA1 and GAPB were identified as proteins that interact with AtENO2. These findings provide a foundation for further investigation of the molecular function of AtENO2 during seed germination under salt stress in Arabidopsis thaliana.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemical Research Methods
Wei-Qing Wang, Ole Norregaard Jensen, Ian Max Moller, Kim H. Hebelstrup, Adelina Rogowska-Wrzesinska
Article
Multidisciplinary Sciences
O. A. Andrzejczak, C. K. Sorensen, W-Q Wang, S. Kovalchuk, C. E. Hagensen, O. N. Jensen, M. Carciofi, M. S. Hovmoller, A. Rogowska-Wrzesinska, I. M. Moller, K. H. Hebelstrup
SCIENTIFIC REPORTS
(2020)
Article
Biochemical Research Methods
Wei-Qing Wang, Yue Wang, Xian-Jun Song, Qi Zhang, Hong-Yan Cheng, Jun Liu, Song-Quan Song
Summary: The study revealed variations in desiccation tolerance among different embryo axis tissues and differential re-establishment of tolerance in these tissues. The enrichment of proteins and signaling pathways in different tissues may play a crucial role in the variation and re-establishment of desiccation tolerance.
JOURNAL OF PROTEOME RESEARCH
(2021)
Article
Multidisciplinary Sciences
Wei-Qing Wang, Ding-Yi Xu, Ya-Ping Sui, Xiao-Hui Ding, Xian-Jun Song
Summary: Through transcriptome and metabolic profiling analyses, key factors and processes regulating seed vigor, as well as the interactions of related genes and proteins, were discovered. The study revealed the genetic architecture of seed vigor variation and uncovered a detoxification pathway that enhances seed vigor.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biochemistry & Molecular Biology
Qiong Gao, Ning Zhang, Wei-Qing Wang, Shao-Yan Shen, Chen Bai, Xian-Jun Song
Summary: This study identified the grain size regulatory module HDR3-GW6a in rice, which has the potential to be a critical target for crop yield improvement. The interaction between HDR3 and GW6a modulates grain size by altering cell proliferation in spikelet hulls and delaying protein degradation, resulting in enhanced histone acetylation and regulation of downstream genes common to both proteins. Furthermore, genetic analysis demonstrated that HDR3 functions in the same pathway as GW6a to regulate grain size.
