The effects of waterlogging stress on plant morphology, leaf physiology and fruit yield in six tomato genotypes at anthesis stage

Yin, Jian; Niu, Lifei; Li, Yankai; Song, Xiaoming; Ottosen, Carl-Otto; Wu, Zhen; Jiang, Fangling; Zhou, Rong

doi:10.48130/vr-2023-0031

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…The leaf is the main source organ in plants that is specialized for photosynthesis and transpiration (Tsukaya, 2006; Nicotra et al, 2007). Leaf size directly determines crop yield and biomass by affecting photosynthetic capacity and development of the whole plant (Nicotra et al, 2011; Liu et al, 2021; Yin et al, 2023). Dissecting the regulatory mechanism of leaf development is crucial for food security and ecosystem turn‐over.…”

Section: Introductionmentioning

confidence: 99%

CsRAXs negatively regulate leaf size and fruiting ability through auxin glycosylation in cucumber

Chen,

Liu,

Chen

et al. 2024

JIPB

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Leaves are the main photosynthesis organ that directly determines crop yield and biomass. Dissecting the regulatory mechanism of leaf development is crucial for food security and ecosystem turn‐over. Here, we identified the novel function of R2R3‐MYB transcription factors CsRAXs in regulating cucumber leaf size and fruiting ability. Csrax5 single mutant exhibited enlarged leaf size and stem diameter, and Csrax1/2/5 triple mutant displayed further enlargement phenotype. Overexpression of CsRAX1 or CsRAX5 gave rise to smaller leaf and thinner stem. The fruiting ability of Csrax1/2/5 plants was significantly enhanced, while that of CsRAX5 overexpression lines was greatly weakened. Similarly, cell number and free auxin level were elevated in mutant plants while decreased in overexpression lines. Biochemical data indicated that CsRAX1/5 directly promoted the expression of auxin glucosyltransferase gene CsUGT74E2. Therefore, our data suggested that CsRAXs function as repressors for leaf size development by promoting auxin glycosylation to decrease free auxin level and cell division in cucumber. Our findings provide new gene targets for cucumber breeding with increased leaf size and crop yield.

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Section: Introductionmentioning

confidence: 99%

CsRAXs negatively regulate leaf size and fruiting ability through auxin glycosylation in cucumber

Chen,

Liu,

Chen

et al. 2024

JIPB

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“…Another strategy is the quiescence strategy, which is characterized by maintaining stable energy conservation without elongating buds. For instance, tomatoes exhibit smaller size and leaf area under waterlogging stress, and plant height tends to decrease signi cantly 10 . The impact of waterlogging stress on leaf morphology and biomass depends on the plant's growth stage, duration, and species 11 .…”

Section: Introductionmentioning

confidence: 99%

Effects of flooding stress on the growth and photosynthetic characteristics of napier grass (Pennisetum purpureum Schum. Guimu-1)

Wen,

Jiang,

Liu

et al. 2024

Preprint

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Napier grass (Pennisetum purpureum) holds significant forage value in many tropical and subtropical regions. To investigate the production adaptability of napier grass in flood-prone areas, napier grass seedlings were selected to conduct a flooding stress experiment. By simulating different flooding durations and depths indoors, we studied the changes in the morphology of napier grass leaves, leaf photosynthetic and chlorophyll fluorescence parameters. The results indicated the occurrence of yellow leaves across all three groups. Specifically, under shallow flooding conditions, the tips of the leaves of napier grass turned yellow. In semi-flooding conditions, the leaves of napier grass yellowed, wilted, developed brown spots, and the stem base exhibited reddish-brown swelling. Under fully flooding conditions, the growth of napier grass was significantly impacted, with partial shedding of leaves and stems, and a mortality rate reaching 60% after 12 days. Both shallow and semi-flooding treatments induced the formation of aerial roots at the base of the stem in napier grass. The photosynthetic parameters Pn, Gs, Ci, and Tr of napier grass showed an overall downward trend under flooding stress. After the experiment, the values Fv/Fo, Fv/Fm, NPQ, and Qp of napier grass under flooding conditions were higher than those in the control group at the same time point, while the other two groups were lower than the control. Based on these findings, we conclude that napier grass exhibits good adaptability in shallow flooding environments, and can survive for 12 days under semi-flooding conditions.

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The effects of waterlogging stress on plant morphology, leaf physiology and fruit yield in six tomato genotypes at anthesis stage

Cited by 2 publications

References 30 publications

CsRAXs negatively regulate leaf size and fruiting ability through auxin glycosylation in cucumber

CsRAXs negatively regulate leaf size and fruiting ability through auxin glycosylation in cucumber

Effects of flooding stress on the growth and photosynthetic characteristics of napier grass (Pennisetum purpureum Schum. Guimu-1)

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