Transcriptome profiling of the chilling response in wheat spikes: I, acclimation response to long-term chilling treatment

Onyemaobi, Olive; Sangma, Harriet; Garg, Gagan; Wallace, Xiaomei; Kleven, Sue

doi:10.1016/j.cpb.2022.100255

Cited by 6 publications

(2 citation statements)

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“…Wheat is a major staple crop around the world, with global production exceeding 700 million tons per year, feeding more than one-third of the world's population [1]. Late spring frost (LSF), i.e., subzero temperatures in late spring, is a critical factor threatening the safety of wheat production worldwide, specifically in countries such as the United States [2], Europe [3], Australia [4], and China [5]. LSF may lead to decreased root activity and leaf photosynthetic rate and young ear death and stem damage, resulting in a huge loss of wheat yield [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Label-Free Quantitative Proteomics Reveal the Mechanisms of Young Wheat (Triticum aestivum L.) Ears’ Response to Spring Freezing

Wang,

Zhang,

Liu

et al. 2023

IJMS

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Late spring frost is an important meteorological factor threatening the safe production of winter wheat in China. The young ear is the most vulnerable organ of the wheat plant to spring frost. To gain an insight into the mechanisms underpinning young wheat ears’ tolerance to freezing, we performed a comparative proteome analysis of wheat varieties Xumai33 (XM33, freezing-sensitive) and Jimai22 (JM22, freezing-tolerant) under normal and freezing conditions using label-free quantitative proteomic techniques during the anther connective tissue formation phase (ACFP). Under freezing stress, 392 and 103 differently expressed proteins (DEPs) were identified in the young ears of XM33 and JM22, respectively, and among these, 30 proteins were common in both varieties. A functional characterization analysis revealed that these DEPs were associated with antioxidant capacity, cell wall modification, protein folding, dehydration response, and plant–pathogen interactions. The young ears of JM22 showed significantly higher expression levels of antioxidant enzymes, heat shock proteins, and dehydrin under normal conditions compared to those of XM33, which might help to prepare the young ears of JM22 for freezing stress. Our results lead to new insights into understanding the mechanisms in young wheat ears’ response to freezing stress and provide pivotal potential candidate proteins required for improving young wheat ears’ tolerance to spring frost.

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Section: Introductionmentioning

confidence: 99%

“…The mechanisms of young ears responding to low-temperature stress at the meiosis stage have been extensively studied through transcriptomics, metabolomics, lipidomics, and physiological and biochemical analysis [4,13,14]. However, the research on the response mechanisms of young ears to freezing stress at the ACFP is deficient.…”

Section: Introductionmentioning

confidence: 99%