The mechanism of improved aeration due to gas films on leaves of submerged rice

Verboven, Pieter; Pedersen, Ole; Ho, Quang Tri; Nicolaı̈, Bart; Colmer, Timothy D.

doi:10.1111/pce.12300

Cited by 41 publications

(35 citation statements)

References 52 publications

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“…Meanwhile, F V /F M did not separate rice cultivars M202 and M202( Sub1 ) during 3 days of submergence (Alpuerto et al, ) or Jackson and Frument in the present study. CO 2 limitations caused by leaf gas film loss by day 5 would also hamper P N (Konnerup et al, ; Verboven, Pedersen, Ho, Nicolai, & Colmer, ), but leaf gas film retention times did not differ between cultivars in the present study (Figure a) or in the 14 wheat cultivars studied by Konnerup et al ().…”

Section: Discussioncontrasting

confidence: 45%

Physiology, gene expression, and metabolome of two wheat cultivars with contrasting submergence tolerance

Herzog

Fukao

Winkel

et al. 2018

Plant Cell & Environment

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Responses of wheat (Triticum aestivum) to complete submergence are not well understood as research has focused on waterlogging (soil flooding). The aim of this study was to characterize the responses of 2 wheat cultivars differing vastly in submergence tolerance to test if submergence tolerance was linked to shoot carbohydrate consumption as seen in rice. Eighteen-day-old wheat cultivars Frument (intolerant) and Jackson (tolerant) grown in soil were completely submerged for up to 19 days while assessing responses in physiology, gene expression, and shoot metabolome. Results revealed 50% mortality after 9.3 and 15.9 days of submergence in intolerant Frument and tolerant Jackson, respectively, and significantly higher growth in Jackson during recovery. Frument displayed faster leaf degradation as evident from leaf tissue porosity, chlorophyll , and metabolomic fingerprinting. Surprisingly, shoot soluble carbohydrates, starch, and individual sugars declined to similarly low levels in both cultivars by day 5, showing that cultivar Jackson tolerated longer periods of low shoot carbohydrate levels than Frument. Moreover, intolerant Frument showed higher levels of phytol and the lipid peroxidation marker malondialdehyde relative to tolerant Jackson. Consequently, we propose to further investigate the role of ethylene sensitivity and deprivation of reactive O species in submerged wheat.

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Section: Discussioncontrasting

confidence: 45%

Physiology, gene expression, and metabolome of two wheat cultivars with contrasting submergence tolerance

Herzog

Fukao

Winkel

et al. 2018

Plant Cell & Environment

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“…As a consequence, these structures are able to stabilize the presence of air underwater and be submerged for several weeks. Pedersen et al also reported that Melilotus siculus, an annual legume with superhydrophobic leaves, is able to retain gas underwater and achieves photosynthesis even after three days of complete submergence [20,21]. Moreover, this plant is able to survive in saline water because the presence of a gas layer physically separates the seawater from the leaf [22].…”

Section: Superhydrophobic Properties In Plantsmentioning

confidence: 94%

Superhydrophobic and superoleophobic properties in nature

2015

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In this review, we report on superhydrophobic and superoleophobic properties found in nature, which are strongly expected to benefit various potential applications. Mimicry of nature is the easiest way to reproduce such properties because nature has for millennia produced plants, insects and animals able to repel water as well as low surface tension liquids such as oils. The most famous example is the lotus leaf, but we may also consider insects able to walk on vertical surfaces or on the water surface, insects with colored structured wings or insects with antifogging and anti-reflective eyes. Most of the time, nature produces nanostructured waxes to obtain superhydrophobic properties. Very recently, the repellency of oils has been reported in springtails, for example. While several publications have reported the fabrication of superoleophobic surfaces using re-entrant geometry, in all of these publications fluorinated compounds were used because they have high hydrophobic properties but also relatively important oleophobic properties in comparison to hydrocarbon analogs even if they are intrinsically oleophilic. However, nature is not able to synthesize fluorinated compounds. In the case of the springtails, the surface structures consists of regular patterns with negative overhangs. The chemical composition of the cuticles is composed of three different layers: an inner cuticle layer made of a lamellar chitin skeleton with numerous pore channels, an epicuticular structures made of structural proteins such glycine (more than 50%), tyrosine and serine an the topmost envelope composed of lipids such as hydrocarbon acids and esters, steroids and terpenes. This discovery will help the scientific community to create superoleophobic materials without the use of fluorinated compounds.

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“…Using a mathematical modelling approach, Verboven et al . () explored the mechanism by which surface gas films can enhance O 2 movement into leaves when submerged. The modelling, which used the scenario of a respiring leaf in darkness to understand O 2 entry, supported the conclusion that gas films significantly reduce the resistance to O 2 entry into submerged leaves when stomata are at least partly open; O 2 enters from the floodwater and can move rapidly within the gas film to stomata.…”

Section: Internal Aeration and Associated Traits To Reduce Low O2 Strmentioning

confidence: 99%