Foliar-applied urea and ABA, respectively, were evaluated as management tools for apple nursery plants to 1) increase reserve N for plants in low N and 2) enhance growth cessation, leaf senescence and abscission, and cold acclimation for those with high N. Container-grown apple plants (Malus ...
To understand leaf abscission and to avoid confusion, there are a few terms that warrant attention. A shortlist of terms, along with their definitions, can be found below. Abscission - the process by which deciduous plants drop their leaves in the autumn Senescence - the process by which plan...
Leaf senescence and petal abscission in flowering plants such as Pelargonium occur in the dark during commercial transportation. Both affect plant quality and the commercial viability of the plant. In this experiment, we investigated the effects of 60 mg l 1 silver nanoparticles (SNP) in ...
abscission zone of the petiole and stem. ) To form a concentration gradient to regulate the process of leaf abscission. Leaf fall generally occurs in the next stage of leaf senescence. In Arabidopsis, auxin can regulate leaf senescence by regulating the expression of IAA29 and WRKY57. In popla...
As the last stage of leaf development, the initiation and progression of leaf senescence are tightly controlled by genetic programing and coordinated by both internal and external factors. Plant hormone is one of the important internal factors that affect leaf senescence. It is widely acknowledged tha...
2009). RhMYB108, an R2R3-MYB transcription factor, is involved in ethylene- and JA-induced petal senescence and abscission in rose plants (Zhang et al. 2019). Taken together, these studies suggest that MYB108 is involved in plant leaf abscission regulation. Our previous research reported the...
C. Hormonal control of senescence and abscission. Phytohormones and Related Compounds. Letham D. S., Higgins T. J. & Goodwin P. B. eds. (1978). 2. Buchanan-Wollaston, V. et al. Comparative transcriptome analysis reveals significant differences in gene expression and signalling pathways ...
Ellis CM, Nagpal P, Young JC, Hagen G, Guilfoyle TJ, Reed JW (2005) AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana. Development (cambridge, England) 132:4563–4574. https://doi.org/10.1242/dev.02012 Article CAS PubMed...
Fungal diversity was lowest at leaf senescence, increased until month 4 and did not significantly change during subsequent decomposition. Highly diverse community of phyllosphere fungi inhabits live oak leaves 2 months before abscission, and these phyllosphere taxa comprise a significant share of the ...
Unlike abscission and dehiscence, leaf senescence is a specialized form of pro- grammed cell death, which is a genetically regulated process of slow cell death of the entire leaf and is pre- ceded by the reallocation of nitrogen, phosphorus, and metals to other parts of the plant. An early...