Cytokinin seed size

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August undefined, 2024

WebNov 29, 2024 · Cytokinins have opposing actions in shoot and root growth—actions shown to involve cytokinin dehydrogenase (CKX), the enzyme that inactivates cytokinin. ... This leads to the potential of … WebCytokinin is limiting to seed development The elevated levels of cytokinins during fruit and seed devel- opment notwithstanding, seed yield responses to seed-specific increases in cytokinin indicate that cytokinin is limiting not only to pod/seed set but also to the developing seed (Table 1).

Cytokinins Determine Arabidopsis Root-Meristem Size by …

WebFeb 1, 2016 · While data from both these publications support a key role for cytokinins in SAM development and seed set, the large seed size could be indicative of delayed cellularization ( Garcia et al., 2003) and a loss of tightly regulated control of seed … For example, in B. oleracea there is no correlation between seed size and mean … WebDec 16, 2005 · Cytokinin is a plant hormone that plays positive and negative regulatory roles in many aspects of plant growth and development. It stimulates the formation and … simple glass beaker bong

THE CYTOKININ SIGNALING MECHANISM AND PLANT GROWTH

WebFeb 2, 2024 · Mutation at a specific amino acid D364 of PPKL1 activates cytokinin response, thus enlarges grain size in a semi-dominant mutant named s48. Overexpression of PPKL1 containing D364, either with the ... WebJul 11, 2024 · Cytokinin-mediated genetic and epigenetic regulation of seed size. One of the key aspects of increasing crop productivity is the seed size. The major emphasis of crop production or improvement since … WebAug 26, 2024 · In this study, we found that the mutation of AtENO2 reduced the seed size and weight. The level of glucose in seed was significantly elevated but that of starch was decreased in AtENO2 mutants compared to WT plants. We also found that AtENO2 mutation reduced the content of cytokinin which resulted in smaller cotyledons. The … rawlings first base glove softball

Signaling pathways of seed size control in plants - ScienceDirect

Frontiers Role of cytokinins in seed development in …

WebIntegration of epigenetic and genetic controls of seed size by cytokinin in Arabidopsis Jing Lia,b, Xin Niea,b, Jeanie Li Hui Tana, and Frédéric Bergera,b,1 aTemasek Life Sciences Laboratory, National University of Singapore, Singapore 117604; and bDepartment of Biological Sciences, National University of Singapore, Singapore 117543 Edited by … WebApr 8, 2024 · Cytokinin-responsive factors CRF2 and CRF3 play a significant role in regulating the initiation of Arabidopsis LRs at low temperatures, which mainly include two types of ... Arabidopsis cytokinin receptor mutants reveal functions in shoot growth, leaf senescence, seed size, germination, root development, and cytokinin metabolism. … simple glass water bottleWebApr 17, 2007 · Cytokinins are known as crucial signaling molecules controlling meristem activity 6, 7, 8, 9.To investigate a possible function of cytokinins in controlling Arabidopsis root-meristem size, we followed the development of the root meristem upon application of exogenous cytokinins. Root-meristem size was expressed as the number of cortex cells … rawlings first baseman glove

"WebApr 11, 2024 · Highlights. As a major environmental factor impacting the seasonal growth and geographical distribution of plants, temperature change significantly affects crop quality and productivity. Ethylene is a gaseous hormone with an important role in plant growth, development, and multiple stress responses, including heat and cold. Temperature stress ... " - Cytokinin seed size

Cytokinin seed size

Cytokinin: a key driver of seed yield - PubMed

WebFeb 2, 2024 · defective cytokinin signaling mostly increases seed size ( Werner et al., 2003 ; Argyros et al., 2008 ; Deng et al., 2010 ), possibly due to the differential roles of the … WebSep 1, 2024 · OsRR4, OHK4, OsRR9, OsCKX5, and Loc_Os07g13800- cytokinin-N-glucosyltransferase expression levels were decreased. And the cytokinin content was increased in osdof18 mutants at 7 DAG. Also, osdof18 mutant seed had more small size and less large size starch granules, whereas the OsDOF18 over expression line had the …

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WebNov 10, 2024 · Heterotrimeric GTP binding proteins (G proteins) and cytokinin play important roles in regulating plant growth and development. However, little is known about the mechanism by which they coordinate the regulation of grain size in rice. We functionally characterized one gene, RGG1, encoding a type-A Gγ subunit. Strong GUS staining was … WebOct 1, 2016 · Cytokinins have been reported to influence seed growth and development. Loss-of-function of one or two cytokinin receptors does not affect seed size, but the …

WebJun 8, 2024 · Almost 200 naturally-occurring or synthetic cytokinins are known, to date. Cytokinins are most abundant in growing tissues, such as roots, embryos, and fruits, where cell division is occurring. Cytokinins are known to delay senescence in leaf tissues, promote mitosis, and stimulate differentiation of the meristem in shoots and roots. WebModifying the cytokinin content in plants is a means of improving plant productivity. Here, we report the development and biological activity of compound TD-K (1-(furan-2-ylmethyl)-3-(1,2,3-thiadiazol-5-yl)urea)which is related to thidiazuron. ... These include seed number and size , shoot and root development , branching and apical dominance ...

WebOct 12, 2024 · The importance of cytokinin-responsive genes including cytokinin oxidases and dehydrogenases (CKX), isopentenyl transferase (IPT), and cytokinin … WebCytokinin plays a crucial role in regulating the proliferation and differentiation of plant cells. ... (2006) Arabidopsis cytokinin receptor mutants reveal functions in shoot growth, leaf senescence, seed size, germination, root development, and cytokinin metabolism. Plant Cell 18: 40 – 64. Abstract / ...

WebSep 9, 2024 · Seed enhancement is a process or a technique through which the germination efficiency of a seed is improved and growth of the seedling is enhanced. Cytokinins play roles in seed enhancement as the cytokinin-primed wheat seeds are known to have better germination, growth, and yield under salt stress condition (Rhaman et al., 2024). simple glass bottle craftsWebThus, the expected outcomes are: 1) advanced knowledge of a major plant hormone response pathway, and 2) the development of tools for crop improvement.Objectives:1) An investigation of the Arabidopsis cytokinin signaling mechanism.Our preliminary data have revealed an essential role for ARR1 stability control in the cytokinin signaling mechanism. simple giveawaysWebApr 17, 2007 · The lowest cytokinin concentration affecting meristem size was 0.02 μM transzeatin. The decrease in meristem size was dose dependent. For each experiment, … rawlings first baseman\u0027s gloveWebCytokinins are present in all plant tissues. They are abundant in the root tip, shoot apex, and immature seeds. Their endogenous concentration is in the low nanomolar range. Typically, several types of cytokinins and their modified forms are present in a given tissue. simple glass beadingWebJun 1, 2024 · Cytokinins maintain the growth potential (pluripotency) of shoot apical meristems, which provide stem cells for the generation of leaf primordia during the … rawlings first base mittWebJul 15, 2014 · It is now well established that seeds are rich source of hormones, particularly auxins, GA, and cytokinin, which are involved in stimulating growth of surrounding tissues and even determine the fruit size (Crane, 1964; Ozga et al., 2003). simple giveaways for weddingWebSep 3, 2013 · The size of mature seeds produced by plants triple-homozygous ahk2/ahk2, ahk3/ahk3, iku2-2/iku2-2 was significantly larger than the size of iku2-2/iku2-2 mutant seeds (P value, 3.44E-20) , … simple glass tabletop terrarium