Phyllochron duration and changes through rice development shape the vertical leaf size profile

Pablo, Janet P.; Clerget, Benoît; Bueno, Crisanta Sunio; Dionora, Jacqueline; Domingo, Abigail J.; Guzman, Constancio C. de; Aguilar, Edna A.; Cadiz, Nina M.; Cuz, Pompe C. Sta

doi:10.1101/2022.03.12.484079

Cited by 3 publications

(3 citation statements)

References 44 publications

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“…3). This is consistent with the ndings of (Riva-Roveda et al, 2016) in maize leaves responding to cold stress and with water stress in rice (Pablo et al, 2022).…”

Section: Cold Differently Affects Leaves Just Prior To and After Emer...supporting

confidence: 93%

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Lainé,

AbdElgawad,

Beemster

2024

Plant Cell Rep

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Zea mays, a major crop, is highly sensitive to chilling which frequently occurs during its seedling stage and negatively affects yields. Although the direct effect of chilling is well-studied, the mechanisms determining the subsequent recovery are still unknown. Our goal is to determine the cellular basis of the leaf growth response to chilling and during recovery of leaves exposed before or after their emergence.• We rst studied the effect of a 3-day cold spell on leaf growth at the plant level. Then, we performed a kinematic analysis to analyse the dynamics of cell division and elongation during recovery of the 4th leaf after exposure to cold before or after emergence.• Our results demonstrated cold more strongly reduced the nal length of non-emerged than emerged leaves (-13 vs -18%). This was not related to growth differences during cold, but a faster and more complete recovery of the growth of emerged leaves. This difference was due to a higher cell division rate on the 1st and a higher cell elongation rate on the 2nd -day of recovery, respectively.• The dynamics of cell division and expansion during recovery determine developmental stage-speci c differences in cold tolerance of maize leaves. Key MessageA novel non-steady state kinematic analysis shows differences in cell division and expansion determining a better recovery from a 3-day cold spell in emerged compared to non-emerged maize leaves.

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“…3). This is consistent with the ndings of (Riva-Roveda et al, 2016) in maize leaves responding to cold stress and with water stress in rice (Pablo et al, 2022).…”

Section: Cold Differently Affects Leaves Just Prior To and After Emer...supporting

confidence: 93%

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Lainé,

AbdElgawad,

Beemster

2024

Plant Cell Rep

View full text Add to dashboard Cite

show abstract

“…3). This is consistent with the findings of (Riva-Roveda et al, 2016) in maize leaves responding to cold stress and with water stress in rice (Pablo et al, 2022).…”

Section: Cold Differently Affects Leaves Just Prior To and After Emer...supporting

confidence: 92%

“…2a). A correlation between faster leaf appearance and shorter mature leaves was also observed by Riva-Roveda et al (2016) in maize and by Pablo et al (2022) and in rice.…”

Section: Effect Of Cold On Phyllochron Indexsupporting

confidence: 57%

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Lainé,

AbdElgawad,

Beemster

2023

Preprint

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SummaryZea mays, a major crop, is highly sensitive to chilling which frequently occurs during its seedling stage and negatively affects yields. Although the direct effect of chilling is well-studied, the mechanisms determining the subsequent recovery are still unknown. Our goal is to determine the cellular basis of the dynamic leaf growth response to chilling and during recovery of leaves exposed before or after their emergence. We first studied the effect of a 3-day cold spell on leaf growth at the plant level. Then, we performed a kinematic analysis to analyse the dynamics of cell division and elongation during recovery of the 4thleaf after exposure to cold before or after emergence. Our results demonstrate that cold more strongly reduced the final length of non-emerged than emerged leaves (-13 vs -18%). This was not related to growth differences during cold, but a faster and more complete recovery of the growth of emerged leaves. Kinematic analysis showed that this difference was due to a higher cell division rate on the 1stand a higher cell elongation rate on the 2nd-day of recovery, respectively. The dynamics of cell division and expansion during recovery determine developmental stage-specific differences in cold tolerance of maize leaves.

show abstract

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Laine,

Elgawad,

Beemster

2023

Preprint

View full text Add to dashboard Cite

• Zea mays, a major crop, is highly sensitive to chilling which frequently occurs during its seedling stage and negatively affects yields. Although the direct effect of chilling is well-studied, the mechanisms determining the subsequent recovery are still unknown. Our goal is to determine the cellular basis of the leaf growth response to chilling and during recovery of leaves exposed before or after their emergence. • We first studied the effect of a 3-day cold spell on leaf growth at the plant level. Then, we performed a kinematic analysis to analyse the dynamics of cell division and elongation during recovery of the 4th leaf after exposure to cold before or after emergence. • Our results demonstrated cold more strongly reduced the final length of non-emerged than emerged leaves (-13 vs -18%). This was not related to growth differences during cold, but a faster and more complete recovery of the growth of emerged leaves. This difference was due to a higher cell division rate on the 1st and a higher cell elongation rate on the 2nd -day of recovery, respectively. • The dynamics of cell division and expansion during recovery determine developmental stage-specific differences in cold tolerance of maize leaves.

show abstract

Phyllochron duration and changes through rice development shape the vertical leaf size profile

Cited by 3 publications

References 44 publications

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage

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