Carbon isotope discrimination studies in plants for abiotic stress

More, Sanket J.; Ravi, V.; Raju, Saravanan

doi:10.1016/b978-0-12-816091-6.00004-3

Cited by 4 publications

(2 citation statements)

References 188 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CID has a negative correlation with WUE, while it exhibits a positive correlation with yield [54]. CID decreases under drought stress as a result of a reduction in stomatal function and the water-saving mode adopted by plants [57]. Our results show that after four weeks of drought, CID was lower in both mixed culture and monoculture grass under severe drought when compared to well-watered plants, indicating higher WUE (Figure 4A).…”

Section: Discussionmentioning

confidence: 70%

Effects of Drought Stress on Red Clover-Grass Mixed Stands Compared to Grass Monoculture Stands in Nitrogen-Deficient Systems

De Silva,

Rathor,

Poudel

et al. 2023

Nitrogen

View full text Add to dashboard Cite

Drought stress is one of the major abiotic stress factors affecting forage production; thus, it is essential to obtain a better understanding of how forage responds to drought. The main objective of this study was to evaluate how legume-grass mixed forage stands respond to drought stress when compared to grass monoculture. A greenhouse pot experiment was conducted using a red clover (Trifolium pratense L.)—timothy grass (Phleum pratense L.) mixed stand and a timothy monoculture stand, where plants were subjected to severe drought (20% field capacity—FC), moderate drought (40% FC), and well-watered (80% FC) conditions for four weeks and subsequently allowed to recover for another four weeks by adjusting moisture back to 80% FC. Both moderate and severe droughts significantly reduced the shoot biomass of the mixed stand, while no difference was exhibited in the timothy monoculture. The shoot biomass and nitrogen fixation capacity of red clover were reduced under drought stress. However, red clover plants subjected to moderate drought were able to recover shoot growth and nitrogen fixation capacity during the recovery phase, allowing more biologically fixed nitrogen and shoot nitrogen production similar to the plants growing under well-watered conditions. Overall, the results demonstrate that the inclusion of legumes in forage mixtures enhances resilience to moderate drought stress.

show abstract

Section: Discussionmentioning

confidence: 70%

Effects of Drought Stress on Red Clover-Grass Mixed Stands Compared to Grass Monoculture Stands in Nitrogen-Deficient Systems

De Silva,

Rathor,

Poudel

et al. 2023

Nitrogen

View full text Add to dashboard Cite

show abstract

“…In addition to the morphological effects mentioned above, physiological changes initiated during drought stress can also be remembered by plants [31,43] as well as by soil microbial communities, which eventually may also be translated into plants traits [67]. δ 13 C is an important integrative proxy of plant water use efficiency, water relations, and stomatal movement, and is widely employed for interpreting chemical, physical, and metabolic processes involved in carbon transformation in stressed plants [68][69][70]. In the present study, memory effects of drought on foliar δ 13 C were not observed, neither in beech leaves nor in fir needles, except for a minor variation in beech roots (Figures S17 and S18).…”

Section: Memory Effects On Carbon and Nitrogen Metabolismmentioning

confidence: 99%

Memory Effects of Water Deprivation in European Beech (Fagus sylvatica L.) and Silver Fir (Abies alba Mill.) Seedlings Grown in Mixed Cultivation

Yang

Burzlaff

et al. 2022

Forests

View full text Add to dashboard Cite

Very limited information is available on the drought tolerance of European beech and silver fir in mixed cultivation, both for mature forests and natural regeneration. Particularly, little information is available regarding the significance on memory effects of drought exposure. Therefore, drought memory was analyzed in seedlings of these species grown in mixed cultivation in the present study. The results showed that previous-year drought hardening mediated enhanced biomass accumulation of beech leaves and root in the subsequent year, but did not impact fir growth. Total carbon (C) content was decreased by drought hardening in both the leaves and roots of beech and previous-year needles and roots of fir, in beech probably as a consequence of increased growth. Previous-year drought hardening had no significant effect on relative water contents, total nitrogen (N), or soluble protein contents in leaves and roots of beech and fir, but resulted in decreased total amino acid contents of beech leaves and fir needles. It further reduced structural N in current-year fir needles and decreased C/N ratios in roots of both beech and silver fir seedlings. Generally, the number of interspecific neighbors had no considerable effect on biomass or total C or N contents, as well as N partitioning in leaves and roots of beech and fir seedlings. The present study highlights that drought hardening induces memory effects in European beech and silver fir seedlings in their mixture in the subsequent year of growth, but these memory effects are stronger in beech than in fir.

show abstract

Genetic Diversity and Relationship of Some Sugar Beet Population and Their Correlation with Morpho-physiological Traits

Golabadi,

Asadi,

Dabaghi

2024

Plant Mol Biol Rep

View full text Add to dashboard Cite

Carbon isotope discrimination studies in plants for abiotic stress

Cited by 4 publications

References 188 publications

Effects of Drought Stress on Red Clover-Grass Mixed Stands Compared to Grass Monoculture Stands in Nitrogen-Deficient Systems

Effects of Drought Stress on Red Clover-Grass Mixed Stands Compared to Grass Monoculture Stands in Nitrogen-Deficient Systems

Memory Effects of Water Deprivation in European Beech (Fagus sylvatica L.) and Silver Fir (Abies alba Mill.) Seedlings Grown in Mixed Cultivation

Genetic Diversity and Relationship of Some Sugar Beet Population and Their Correlation with Morpho-physiological Traits

Contact Info

Product

Resources

About