Sucrose synthase (SUS), an enzyme that breaks down sucrose, is known to play an important role in the production of UDP-glucose and ADP-glucose. An established and highly debated theory holds that SUS is necessary for providing UDP-glucose and ADP-glucose for the biosynthesis of cellulose and starch, respectively. This article is focused on two recent reports which refuted the long-held theory that SUS is the sole regulator in cellulose and starch synthesis.
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http://dx.doi.org/10.1007/s12298-023-01356-y | DOI Listing |
Trends Plant Sci
January 2025
Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain. Electronic address:
The study by Zhang et al. demonstrated that two kinases (SlCDPK27 and SlCDPK26) regulate the sugar content in tomato fruits with little impact on morphology. They act as sugar breaks by phosphorylating a sucrose synthase, promoting its degradation and unveiling the mechanism by which sugar content can be increased without yield penalty.
View Article and Find Full Text PDFPlants (Basel)
December 2024
College of Grassland Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Seed shattering (SS) functions are a survival mechanism in plants, enabling them to withstand adverse environmental conditions and ensure reproduction. However, this trait limits seed yield. , a perennial forage grass with many favorable traits, is constrained by SS, limiting its broader application.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Consejo Nacional de Humanidades, Ciencias y Tecnologías (CONAHCYT)-Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Veracruz, Mexico.
Ying Yong Sheng Tai Xue Bao
October 2024
College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, China.
We investigated the effects of exogenous abscisic acid (ABA) on grain filling, starch accumulation, and endogenous hormones in maize (both the heat-tolerant maize variety Zhengdan 958 (ZD958) and the heat-sensitive variety Xianyu 335 (XY335)) under early post-anthesis high temperature stress by simulating high temperature stress for a period of 6 to 12 days post-anthesis in 2022 and 2023. There were three treatments: spraying water at ambient temperature as the control, spraying water at high temperature, and spraying ABA at high temperature. The results showed that early post-anthesis high temperature stress resulted in a significant reduction in grain weight and yield in maize, with XY335 showing a greater reduction than ZD958.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
Guizhou Engineering Research Center for Fruit Crops, Agricultural College, Guizhou University, Guiyang, 550025, People's Republic of China. Electronic address:
Sugar content is an important factor that largely determines fruit quality. 'Fengtang' plum (Prunus salicina Lindl.) is recognized for its high soluble sugar content, and the Sucrose synthase 4 (PsSUS4) functions as the controlling step in sucrose accumulation.
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