We investigated the effect of target mRNA level on grafting-transmitted gene silencing in tomato plants by using a strong ACC oxidase 1 (ACO1) silencer as the stock and transgenic ACO1 overexpressers as scions. Manifestation of graft transmission of sense gene silencing required a high initial level of target mRNA in the scion. A relatively high level of siRNA, similar to that in the strong ACO...

Boron (B) deficiency stress is frequently observed in citrus orchards and causes considerable loss of productivity and fruit quality. Carrizo citrange (Cc) has been reported as a rootstock more tolerant to B deficiency than Trifoliate orange (To). The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency. The pre...

Leaf senescence is not a passive degenerative process; it represents a process of nutrient relocation, in which materials are salvaged for growth at a later stage or to produce the next generation. Leaf senescence is regulated by various factors, such as darkness, stress, aging, and phytohormones. Strigolactone is a recently identified phytohormone, and it has multiple functions in plant develo...

Two DNA sequences (VvPR1 and UT456) were selected by a functional screen to test for ability to suppress the Programmed Cell Death-dependent symptoms of PD. Greenhouse experiments confirmed that these two different anti-PCD DNA sequences prevented PD symptoms in the PD-susceptible cultivar Thompson Seedless and the commercial rootstock Freedom. Furthermore, the bacterial titer in the transgenic...

The effects of different Cucurbita spp. rootstocks on melon cultivars belonging to different horticultural groups were studied by comparing grafted plants with non-grafted ones under greenhouse and open ®eld growing conditions. Winter melons (Cucumis melo L.) of the Inodorus group, cvs. `Thraki', `Peplo' and `Lefko Amynteou', and a summer melon of the Cantalupensis group, cv. `Kokkini Banana', ...

Although the blue light photoreceptors cryptochromes mediate expression of genes related to reactive oxygen species, whether cryptochrome 1a (cry1a) regulates local and long-distance signaling water deficit in tomato (Solanum lycopersicum L.) is unknown. Thus cry1a mutant its wild-type (WT) were reciprocally grafted (WT/WT; cry1a/cry1a; WT/cry1a; cry1a/WT; as scion/rootstock) or grown on their ...

A superimposed experiment was conducted at Gircha, Chencha district, Southern Ethiopia to determine the effect of four rootstocks on leaf nutrient concentration five apple cultivars. The laid out in a randomized complete block design (RCBD) with three replications. Data concentrations were collected and analyzed using SAS software. Results revealed that scion-rootstock interaction significantly...

Electroimpedance spectroscopy technology can be used to accelerate the healing of complete trees and estimate plant condition after grafting. This approach will allow sorting out low-vigor plants at early stages their development save time resources. Still, in some cases, use electrical impedance difficult due complexity equipment special measurement conditions. In this paper, we attempt overco...

Mediterranean basin and other citrus-growing areas, such as Florida or California, are among the most vulnerable regions to impacts of global warming. Therefore, citrus will be likely subjected increasing periods water scarcity combined with high temperatures that impair plant growth, development yield. In industry, grafting is used improve varietal characteristics, abiotic stress tolerance. Pr...