Article
Plant Sciences
Qin Zhang, Jenifer Pritchard, Jos Mieog, Keren Byrne, Michelle L. Colgrave, Ji-Rui Wang, Jean-Philippe F. Ral
Summary: The hydrolysis of starch is a complex process that requires multiple hydrolytic enzymes, including alpha-amylases. Overexpression of TaAmy1 in wheat resulted in significantly increased alpha-amylase activity in mature grains, but had limited impact on starch damage and early germination process.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Thobeka Philile Khumalo, Tsepiso Hlongoane, Annelie Barnard, Toi John Tsilo
Summary: The study evaluated wheat populations in South Africa to identify genotypes with increased preharvest sprouting tolerance. The findings identified specific loci associated with tolerance and recommended genotypes for further breeding efforts. These results will contribute to the development of PHS-tolerant cultivars in South Africa.
Article
Plant Sciences
Sarah R. Peery, Scott W. Carle, Matthew Wysock, Michael O. Pumphrey, Camille M. Steber
Summary: This study found that wheat grain can germinate precociously during the maturation phase of grain development, a phenomenon called vivipary. This was associated with elevated levels of the starch-digesting enzyme alpha-amylase. Low falling number (FN) can result from preharvest sprouting (PHS)/germination or late maturity alpha-amylase (LMA). Controlled environment experiments showed that vivipary can be induced in cooler conditions and is associated with increased alpha-amylase activity. Genotypic differences exist in vivipary susceptibility, but overlapping mechanisms with LMA are likely involved.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Huilan Zhang, Ruyue Wei, Yongjiu Wang, Fangrong Shao, Minghui Cao, Wenjie Kan, Jian Liu, Minghao Li, Caiguo Tang, Lifang Wu
Summary: A new type of nanonetwork material OAA has been found to effectively prevent preharvest sprouting in wheat by reducing moisture absorption, leading to lower occurrence of PHS, and improved yield and quality of wheat.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Food Science & Technology
Adeola Helen Adetokunboh, Anthony O. Obilana, Victoria A. Jideani
Summary: This study investigated the enzyme and antioxidant activities of malted Bambara groundnut affected by steeping and sprouting times. The results showed that steeping and sprouting times significantly affected the malt color and pH of the Bambara groundnut seeds. However, there was no significant difference in protein content based on steeping and sprouting times. Malted Bambara groundnut steeped for 36 h and sprouted for 96 h produced an amylase-rich malt, which can be used as a functional food ingredient in food and beverage formulations.
Article
Plant Sciences
Amber L. Hauvermale, Courtney Matzke, Gamila Bohaliga, Mike O. Pumphrey, Camille M. Steber, Andrew G. McCubbin
Summary: Accurate and rapid testing platforms are crucial for early detection and mitigation of late maturity alpha-amylase and preharvest sprouting in wheat. Researchers have successfully developed three monoclonal antibodies with targeted specificities for detecting alpha-amylase using an immunoassay method.
Article
Agriculture, Multidisciplinary
Mingting Zhang, Guibin Cui, Xinchen Bai, Zi Ye, Shumeng Zhang, Kunliang Xie, Fengli Sun, Chao Zhang, Yajun Xi
Summary: Preharvest sprouting in grain is a common issue affecting yield and quality, with MingXian169 wheat showing high resistance to this. Transcriptome sequencing revealed the involvement of long noncoding RNA, miRNA, and DNA methylation in regulating critical pathways during sprouting. Changes in phytohormone content and enzyme activities suggest their role in increasing preharvest sprouting resistance in MingXian169.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Adeola Helen Adetokunboh, Anthony O. Obilana, Victoria A. Jideani
Summary: This study produced specialty malts from Bambara groundnut seeds and analyzed their physicochemical characteristics and metabolites. The specialty malts exhibited good physicochemical characteristics and metabolites, making them useful as ingredients in food production.
Article
Food Science & Technology
D. Mangan, A. Draga, R. Ivory, C. Cornaggia, M. Blundell, C. Howitt, B. McCleary, J. P. Ral
Summary: The Hagberg Falling Number (FN) method is commonly used to assess the quality of wheat grain, but it has limitations in terms of throughput, reproducibility, and differentiation between different causes of low FN. This study explores a specific wheat flour set to identify enzymatic candidates that can distinguish between Pre-harvest Sprouting (PHS) and Late Maturity alpha-Amylase (LMA) affected grains, and alpha-glucosidase is found to be a potential enzyme marker for specifically detecting sprouted grains.
JOURNAL OF CEREAL SCIENCE
(2022)
Article
Chemistry, Applied
Qing-Qing Lv, Juan-Juan Cao, Rui Liu, Han-Qing Chen
Summary: Two polysaccharide fractions, WXA-1 and AXA-1, were isolated from wheat bran in this study. Structural analysis revealed that they are heteropolysaccharides, with AXA-1 showing stronger inhibitory effects on enzyme activities compared to WXA-1.
Article
Food Science & Technology
Sabrina Geisslitz, Darina Pronin, Manjusha Neerukonda, Valentina Curella, Sibylle Neufang, Sandra Koch, Heiko Weichert, Hans Weber, Andreas Boerner, Detlef Schuppan, Katharina Anne Scherf
Summary: The prevalence of hypersensitivities towards wheat has increased and is not solely limited to celiac disease but also includes non-celiac wheat sensitivity. One possible cause for this increase is the activation of toll-like receptor 4 on immune cells by amylase/trypsin-inhibitors (ATIs), which are non-gluten proteins and wheat allergens. However, the study found no changes in the total ATI content or distribution between old and modern wheat cultivars.
NPJ SCIENCE OF FOOD
(2023)
Article
Chemistry, Multidisciplinary
Yong Jin Lee, Sang Yong Park, Dae Yeon Kim, Jae Yoon Kim
Summary: The study revealed that genes related to ABA play a crucial role in controlling dormancy and germination, interacting with sugar-related processes in PHS-tolerant cultivars. This suggests that ABA-related genes are key regulators in response to PHS.
APPLIED SCIENCES-BASEL
(2021)
Review
Food Science & Technology
Yang Hu, Stephanie M. Sjoberg, Chunpen (James) Chen, Amber L. Hauvermale, Craig F. Morris, Stephen R. Delwiche, Ashley E. Cannon, Camille M. Steber, Zhiwu Zhang
Summary: This review examines the application, limitations, and potential alternatives to the Hagberg-Perten falling number (FN) method used in the global wheat industry. The FN test indirectly detects the presence of alpha-amylase, which is responsible for starch degradation. Low FN/high alpha-amylase in wheat grains results in poor end-product quality and significant losses for various stakeholders. The FN method has limitations such as sampling variability, high cost, labor intensiveness, destructive nature, and inability to differentiate between different causes of low FN. Seeking faster, cheaper, and more accurate alternatives can improve breeding and avoid inadvertent mixing of high- and low-FN grain, thus preserving the value of wheat grain.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2022)
Article
Chemistry, Applied
Jia Wu, Frederick J. Warren
Summary: Wheat is a major staple crop for a significant portion of the world's population, providing calories in the form of starch. Protein in wheat, particularly the proteinaceous alpha-amylase inhibitors, can reduce starch digestion, even after gastric proteolysis. The rate and extent of starch digestion can be altered by pepsin pre-digestion. Soluble proteinaceous alpha-amylase inhibitors present in wheat can escape gastric digestion and significantly contribute to reducing starch digestion in the small intestine.
Article
Agronomy
HyeonSeok Lee, MyoungGoo Choi, WoonHa Hwang, JaeHyeok Jeong, SeoYeong Yang, ChungGen Lee
Summary: This study investigated the impact of environmental factors on preharvest sprouting in rice, finding that temperature and rainfall significantly influenced the sprouting rate.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
Andrew T. Wiersma, Linda K. Brown, Elizabeth I. Brisco, Tiffany L. Liu, Kevin L. Childs, Jesse A. Poland, Sunish K. Sehgal, Eric L. Olson
THEORETICAL AND APPLIED GENETICS
(2016)
Article
Agronomy
Andrew T. Wiersma, Jane A. Pulman, Linda K. Brown, Christina Cowger, Eric L. Olson
THEORETICAL AND APPLIED GENETICS
(2017)
Article
Agronomy
Andrew T. Wiersma, Rebecca B. Whetten, Guorong Zhang, Sunish K. Sehgal, Frederic L. Kolb, Jesse A. Poland, R. Esten Mason, Arron H. Carter, Christina Cowger, Eric L. Olson
JOURNAL OF PLANT REGISTRATIONS
(2018)
Article
Plant Sciences
Mithila Jugulam, Kindsey Niehues, Amar S. Godar, Dal-Hoe Koo, Tatiana Danilova, Bernd Friebe, Sunish Sehgal, Vijay K. Varanasi, Andrew Wiersma, Philip Westra, Phillip W. Stahlman, Bikram S. Gill
Article
Plant Sciences
Andrew T. Wiersma, Todd A. Gaines, Christopher Preston, John P. Hamilton, Darci Giacomini, C. Robin Buell, Jan E. Leach, Philip Westra
Article
Agronomy
Melinda K. Yerka, Andrew T. Wiersma, R. Bradley Lindenmayer, Philip Westra, William G. Johnson, Natalia de Leon, David E. Stoltenberg
Article
Multidisciplinary Sciences
Guo-qing Song, Xue Han, Andrew T. Wiersma, Xiaojuan Zong, Halima E. Awale, James D. Kelly
Article
Agronomy
Nikayla M. Strauss, Andrew Wiersma, Patricia DeMacon, Emily Klarquist, Arron Carter, Kimberly A. Garland Campbell, Eric Olson
Summary: The DNAM population was developed to increase diversity in the D genome of hexaploid wheat and consists of 1,164 BC2F4 recombinant inbred lines from direct crosses between a Kansas State University breeding line and Aegilops tauschii accessions. Originally focused on introgressing novel stem rust resistance genes, it has since been utilized to identify resistance to other fungal pathogens, with a subset of lines selected for important agronomic traits and named the DNAM Core RILs. Research with the DNAM has the potential to provide novel genes for introgression into elite cultivars and deepen understanding of the wheat D genome.
JOURNAL OF PLANT REGISTRATIONS
(2021)