Plant performance and food security in a wetter world

Sasidharan, Rashmi; Voesenek, L.A.C.J.; Perata, Pierdomenico

doi:10.1111/nph.17067

Cited by 13 publications

(7 citation statements)

References 32 publications

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“…Photosynthesis, as one of the main physiological processes, is vulnerable to waterlogging [ 25 , 26 ]. Waterlogging is harmful since it restricted CO 2 and O 2 availability and limited gas diffusion in plants [ 3 , 10 , 27 ]. This explains why the photosynthetic parameters of two tomato genotypes here were severely affected by waterlogging.…”

Section: Discussionmentioning

confidence: 99%

“…Extreme rainfall and waterlogging events negatively affected crop production, resulting in enormous economic losses and elevated concerns about food security [ 3 ]. Most terrestrial plants including almost all crops are highly vulnerable to waterlogging conditions [ 3 , 4 ]. The frequency and intensity of weather extremes increase, and more and more farming regions are exposed to waterlogging [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…Most terrestrial plants including almost all crops are highly vulnerable to waterlogging conditions [ 3 , 4 ]. The frequency and intensity of weather extremes increase, and more and more farming regions are exposed to waterlogging [ 3 ]. Therefore, it is urgent to understand how crop plants respond to waterlogging, especially when waterlogging happened more than once.…”

Section: Introductionmentioning

confidence: 99%

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Dominant and Priming Role of Waterlogging in Tomato at e[CO2] by Multivariate Analysis

Zhou

Jiang

et al. 2022

IJMS

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The frequency of waterlogging episodes has increased due to unpredictable and intense rainfalls. However, less is known about waterlogging memory and its interaction with other climate change events, such as elevated CO2 concentration (e[CO2]). This study investigated the combined effects of e[CO2] and two rounds of waterlogging stress on the growth of cultivated tomato (Solanum lycopersicum) and wild tomato (S. pimpinellifolium). The aim is to elucidate the interaction between genotypes and environmental factors and thereby to improve crop resilience to climate change. We found that two rounds of treatments appeared to induce different acclimation strategies of the two tomato genotypes. S. pimpinellifolium responded more negatively to the first-time waterlogging than S. lycopersicum, as indicated by decreased photosynthesis and biomass loss. Nevertheless, the two genotypes respond similarly when waterlogging stress recurred, showing that they could maintain a higher leaf photosynthesis compared to single stress, especially for the wild genotype. This showed that waterlogging priming played a positive role in stress memory in both tomato genotypes. Multivariate analysis showed that waterlogging played a dominant role when combined with [CO2] for both the cultivated and wild tomato genotypes. This work will benefit agricultural production strategies by pinpointing the positive effects of e[CO2] and waterlogging memory.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dominant and Priming Role of Waterlogging in Tomato at e[CO2] by Multivariate Analysis

Zhou

Jiang

et al. 2022

IJMS

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“…There is substantial evidence that practitioners also produce transplants that are destined to fail by over-watering containerized S. nelsonii plants. The literature on hypoxia and anaerobiosis, e.g., [33][34][35], can be used to understand the root damage that is caused when practitioners make this mistake. Root death, secondary attack of root pathogens, stunted stem growth, and leaf epinasty mistaken for wilting are among the cascade of plant responses that occur when practitioners without an understanding of plant water relations over-water Serianthes plants in containers.…”

Section: The Structural Organsmentioning

confidence: 99%

Adaptive Management Lessons for Serianthes nelsonii Conservation

et al. 2021

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The literature covering the biology, ecology, horticulture, and conservation of the critically endangered tree Serianthes nelsonii Merr. was reviewed. The roots, stems, and leaves of this charismatic legume tree revealed highly plastic traits and responded positively to horticultural manipulations to improve the quality of container-grown transplants. Pre-sowing seed treatments of seed coat scarification and 1 h of imbibition generated 85% to 90% germination at a temperature optimum of 26 °C. Adventitious root formation on air layers and successful unions on approach grafts were 100%. Seedling and sapling growth was maximum under 25% to 50% sunlight transmission, limited irrigation to ensure adequate root zone aeration, repetitive stem tip pruning to increase root:shoot quotient, and thigmic stress to retain an orthotropic orientation of stems. In situ regeneration on Guam was substantial but recruitment from seedling to sapling was nil. High quality leaf litter chemistry enabled rapid decomposition, and soils beneath the tree exhibited unique chemical traits that increased ecosystem health by creating spatial heterogeneity. The greatest unanswered questions focus on plant mortality. Research is needed to determine the reasons for the mortality of in situ seedlings, mortality within transplantation projects on Guam, and the mortality of 60% of the mature in situ tree population during the 26-year implementation of the national recovery plan. Horticultural researchers are ideally positioned to answer these urgent questions.

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“…In either case, flooding inundates the soil with water and displaces oxygen, inducing hypoxic conditions for plant roots (Kozlowski, 1984; Grinieva, 1991; Kaur et al, 2020). These conditions are immediately linked to reductions in plant growth and photosynthesis, as well as dynamic changes in root metabolism associated with survival (Voesenek & Bailey‐Serres, 2015; Nakamura & Noguchi, 2020; Sasidharan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

Mleziva,

Ngumbi

2024

Physiologia Plantarum

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Climate change is driving an alarming increase in the frequency and intensity of abiotic and biotic stress factors, negatively impacting plant development and agricultural productivity. To survive, plants respond by inducing changes in below and aboveground metabolism with concomitant alterations in defensive secondary metabolites. While plant responses to the isolated stresses of flooding and insect herbivory have been extensively studied, much less is known about their response in combination. Wild relatives of cultivated plants with robust stress tolerance traits provide an excellent system for comparing how diverse plant species respond to combinatorial stress, and provide insight into potential germplasms for stress‐tolerant hybrids. In this study, we compared the below and aboveground changes in the secondary metabolites of maize (Zea mays) and a flood‐tolerant wild relative Nicaraguan teosinte (Zea nicaraguensis) in response to flooding, insect herbivory, and their combination. Root tissue was analyzed for changes in belowground metabolism. Leaf total phenolic content and headspace volatile organic compound emission were analyzed for changes in aboveground secondary metabolism. Results revealed significant differences in the root metabolome profiles of teosinte and maize. Notably, the accumulation of the flavonoids apigenin, naringenin, and luteolin during flooding and herbivory differentiated teosinte from maize. Aboveground, terpenes, including trans‐α‐bergamotene and (E)‐4,8‐dimethylnona‐1,3,7‐triene, shaped compositional differences in their volatile profiles between flooding, herbivory, and their combination. Taken together, these results suggest teosinte may be more tolerant than maize due to dynamic metabolic changes during flooding and herbivory that help relieve stress and influence plant–insect interactions.

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Plant performance and food security in a wetter world

Cited by 13 publications

References 32 publications

Dominant and Priming Role of Waterlogging in Tomato at e[CO2] by Multivariate Analysis

Dominant and Priming Role of Waterlogging in Tomato at e[CO2] by Multivariate Analysis

Adaptive Management Lessons for Serianthes nelsonii Conservation

Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

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