Effect of multigenerational exposure to elevated atmospheric CO2 concentration on grain quality in wheat

Effect of the transgenerational exposure to elevated CO2 on low temperature tolerance of winter wheat: Chloroplast ultrastructure and carbohydrate metabolism

“…In addition, more large starch grains decrease the number of grana thylakoid membrane through pressing against and separating grana thylakoids (Teng et al, 2006 In the present study, the above-ground biomass was significantly higher in e[CO 2 ] plants than that in a[CO 2 ] plants. A similar result was found in the shoot dry weight of offspring wheat after four generations successively grown in e[CO 2 ] in our previous study (Li, Ulfat, Lv, et al, 2019). However, the long-term effect of e[CO 2 ] over multiple generations might be difficult to predicted (Reich, Hobbie, Lee, & Pastore, 2018 Impaired chloroplasts under LT is the main source of ROS overproduced in photosynthesis process (Dai, Zhou, & Zhang, 2007;Venzhik et al, 2016;).…”

“…Seeds of winter wheat (Triticum aestivum L.) cv. Lianmai6 harvested after four generations (2014-2018) continuously grown in ambient CO 2 concentration (a[CO 2 ], 400 μmol/L) and e[CO 2 ] (800 μmol/L) (Li, Ulfat, Lv, et al, 2019) were surface-sterilized with 70% ethanol and 1% sodium hypochlorite solution and washed with distilled water.…”

Elucidating the source–sink relationships of zinc biofortification in wheat grains: A review

“…The different source-sink relationships between different wheat cultivars/genotypes, or even within the same crop variety under different conditions, demand a mechanistic and systematic understanding of the source-sink interactions to achieve optimal Zn biofortification. Furthermore, the changing global climate (e.g., the elevated ambient air temperature and CO 2 concentration or the changed soil water availability due to altered precipitation) has exacerbated Zn deficiency in the soil-plant system in many countries and threatens human nutrition (Li, Ulfat, et al, 2019;Moreno-Jiménez et al, 2019;Myers et al, 2014). Understanding the source-sink relationship is therefore of great importance in facilitating wheat growth under stresses (Wang et al, 2019;Zhang et al, 2020), as demonstrated by Karim et al (2012), who showed that foliar Zn spraying increased grain yield under drought, possibly by reducing the drought-induced oxidative cell damage due to improved antioxidative defense.…”

“…Multigenerational exposure to elevated atmospheric CO 2 could enhance grain yields but reduce grain N, K, calcium (Ca), protein, glutenin macropolymer, and total amino acid concentrations in wheat (Li, Ulfat, et al, 2019). Myers et al (2014) reported that C 3 (e.g., wheat, barley, rice) grains had lower Zn concentrations when grown under field conditions at elevated atmospheric CO 2 concentration, whereas C 4 crops (e.g., maize) seemed to be less affected, due to their different physiology.…”

Heritable Changes in Physiological Gas Exchange Traits in Response to Long-Term, Moderate Free-Air Carbon Dioxide Enrichment

“…A review of plant responses to free-air [CO 2 ] enrichment indicates significant capacity for acclimation among modern plant taxa (Anderson et al, 2001; Drake et al, 1997; Maherali et al, 2002) and, in some cases, the capacity for those acclimations to be observable among offspring (Grossman and Rice, 2014; Haus et al, 2018; Li et al, 2019; Nakamura et al, 2011; Saban et al, 2019). However, there are a number of studies that specifically describe a lack of any acclamatory responses (Bader et al, 2010; Crous et al, 2011; Herrick and Thomas, 2001; Leakey et al, 2006; Usuda, 2006).…”